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Bibliografias temáticas / Experimental and numerical approaches

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Literatura científica selecionada sobre o tema "Experimental and numerical approaches"

Autor: Grafiati

Publicado: 15 de março de 2025

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Artigos de revistas sobre o assunto "Experimental and numerical approaches"

1

Nesládek, M., M. Španiel, J. Jurenka, J. Růžička, and J. Kuželka. "Fretting fatigue – Experimental and numerical approaches." International Journal of Fatigue 44 (November 2012): 61–73. http://dx.doi.org/10.1016/j.ijfatigue.2012.05.015.

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Chiew, Yee-Meng, Jihn-Sung Lai, and Oscar Link. "Experimental, Numerical and Field Approaches to Scour Research." Water 12, no. 6 (2020): 1749. http://dx.doi.org/10.3390/w12061749.

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Scour, which represents a fascinating and complex engineering problem involving a number of physical mechanisms and interactions, has motivated a vast amount of research following different but complementary methodological approaches such as experimental, numerical, and field methods. Far from being completely understood, scour remains one of the main hazards for many structures such as bridges, submarine pipelines, offshore wind turbines, etc. Thus, scour is currently a very active field of research with important open questions that are unanswered and practical challenges to be tackled. This

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Badurowicz, Przemysław, and Dawid Pacek. "Determining Ricocheting Projectiles’ Temperature Using Numerical and Experimental Approaches." Materials 15, no. 3 (2022): 928. http://dx.doi.org/10.3390/ma15030928.

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This paper describes the process of creating a numerical FEM (finite element method) model of the 5.56 × 45 mm SS109 projectile. The model was used to calculate the temperatures occurring in the projectile materials during the impact on the steel plate at an angle of 45°. The purpose of the investigation is to estimate the ability of a ricocheting projectile to cause ignition. For the same projectile, experimental tests were also carried out under the conditions adopted for the numerical investigation in order to validate the FEM model. During the experiment, temperature was measured with a th

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Lin, Shu-Li, Sheng-Yang Lee, Long-Yi Lee, Wen-Ta Chiu, Che-Tong Lin, and Haw-Ming Huang. "Vibrational analysis of mandible trauma: experimental and numerical approaches." Medical & Biological Engineering & Computing 44, no. 9 (2006): 785–92. http://dx.doi.org/10.1007/s11517-006-0095-4.

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Gomes, Hugo Dutra, Maria Carolina dos Santos Freitas, Luciano Pessanha Moreira, Flavia de Paula Vitoretti, and Jose Adilson de Castro. "Deformations Limits Analysis of Sheet Metal Manufatured through the Incremental Forming Process." Materials Science Forum 899 (July 2017): 272–77. http://dx.doi.org/10.4028/www.scientific.net/msf.899.272.

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The present study is primarily engaged in the implementation of the incremental stamping process in a computerized numeric control This paper presents two different approaches to this forming process, an experimental and other numerical. Experimental used by the computer numerical control to perform the printing process and performs numerical simulations of the process using the finite element method. Some parameters are analyzed in both approaches, such as product geometry effects, tool geometry, tool speed, tool path, contact conditions and mechanical properties of the materials.

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KHARIF, C., J. P. GIOVANANGELI, J. TOUBOUL, L. GRARE, and E. PELINOVSKY. "Influence of wind on extreme wave events: experimental and numerical approaches." Journal of Fluid Mechanics 594 (December 14, 2007): 209–47. http://dx.doi.org/10.1017/s0022112007009019.

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The influence of wind on extreme wave events in deep water is investigated experimentally and numerically. A series of experiments conducted in the Large Air–Sea Interactions Facility (LASIF-Marseille, France) shows that wind blowing over a short wave group due to the dispersive focusing of a longer frequency-modulated wavetrain (chirped wave packet) may increase the time duration of the extreme wave event by delaying the defocusing stage. A detailed analysis of the experimental results suggests that extreme wave events may be sustained longer by the air flow separation occurring on the leewar

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Souza, Andrews, Eduardo Marques, Carlos Balsa, and João Ribeiro. "Characterization of Shear Strain on PDMS: Numerical and Experimental Approaches." Applied Sciences 10, no. 9 (2020): 3322. http://dx.doi.org/10.3390/app10093322.

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Polydimethylsiloxane (PDMS) is one of the most popular elastomers and has been used in different fields, especially in biomechanics research. Among the many interesting features of this material, its hyperelastic behavior stands out, which allows the use of PDMS in various applications, like the ones that mimic soft tissues. However, the hyperelastic behavior is not linear and needs detailed analysis, especially the characterization of shear strain. In this work, two approaches, numerical and experimental, were proposed to characterize the effect of shear strain on PDMS. The experimental metho

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Stanciu, Mariana Domnica, Silviu Marian Nastac, Voichita Bucur, Mihai Trandafir, Gheorghe Dron, and Alina Maria Nauncef. "Dynamic Analysis of the Musical Triangles—Experimental and Numerical Approaches." Applied Sciences 12, no. 12 (2022): 6275. http://dx.doi.org/10.3390/app12126275.

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This paper addresses the experimental and numerical dynamic analysis of curved bars used as percussion musical instruments. These structures are known as triangles, being made of various metal materials. The study was based on the experimental analysis of the dynamic response over time and the frequency of three types of triangles, different in material and size. Subsequently, finite element analysis of the same structures modeled with the SimCenter 12 program was performed. The results were compared, highlighting the contribution of material type and geometry in obtaining vibration modes, fre

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Fanara, Arthur, Luc Courard, Frédéric Collin, and Julien Hubert. "Transfer properties in recycled aggregates concrete: Experimental and numerical approaches." Construction and Building Materials 326 (April 2022): 126778. http://dx.doi.org/10.1016/j.conbuildmat.2022.126778.

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de Camargo, Felipe Vannucchi. "Survey on Experimental and Numerical Approaches to Model Underwater Explosions." Journal of Marine Science and Engineering 7, no. 1 (2019): 15. http://dx.doi.org/10.3390/jmse7010015.

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The ability of predicting material failure is essential for adequate structural dimensioning in every mechanical design. For ships, and particularly for military vessels, the challenge of optimizing the toughness-to-weight ratio at the highest possible value is essential to provide agile structures that can safely withstand external forces. Exploring the case of underwater explosions, the present paper summarizes some of the fundamental mathematical relations for foreseeing the behavior of naval panels to such solicitation. A broad state-of-the-art survey links the mechanical stress-strain res

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Teses / dissertações sobre o assunto "Experimental and numerical approaches"

1

Huan, Xun. "Numerical approaches for sequential Bayesian optimal experimental design." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/101442.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 2015.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (pages 175-186).<br>Experimental data play a crucial role in developing and refining models of physical systems. Some experiments can be more valuable than others, however. Well-chosen experiments can save substantial resources, and hence optimal

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Duthil, Eric Patxi. "Thermoacoustic heat pumping study : experimental and numerical approaches /." View Abstract or Full-Text, 2003. http://library.ust.hk/cgi/db/thesis.pl?MECH%202003%20DUTHIL.

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Thesis (Ph. D.)--Hong Kong University of Science and Technology, 2003.<br>Includes bibliographical references (leaves 122-129). Also available in electronic version. Access restricted to campus users.

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CONTI, BRUNO. "Solid Oxide Fuel Cells: Numerical and Experimental Approaches." Doctoral thesis, Università degli studi di Genova, 2019. http://hdl.handle.net/11567/943177.

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Solid oxide fuel cell (SOFC) is a promising electrochemical technology that can produce electrical and thermal power with outstanding efficiencies. A systematic synergetic approach between experimental measurements and modelling theory has proved to be instrumental to evaluate performance and correct behaviour of a chemical process, like the ones occurring in SOFC. For this purpose, starting from SIMFC (SIMulation of Fuel Cells) code set-up by PERT-UNIGE (Process Engineering Research Group) for Molten Carbonate Fuel Cells [1], a new code has been set-up for SOFCs based on local mass, energy, c

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Fliegans, Jérôme. "Coercivity of NdFeB-based sintered permanent magnets : experimental and numerical approaches." Thesis, Université Grenoble Alpes (ComUE), 2019. http://www.theses.fr/2019GREAY071.

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Les aimants permanents Nd-Fe-B sont actuellement les plus puissants du marché. Ils sont indispensables pour des applications telles que les moteurs des véhicules électriques ou les générateurs des éoliennes. Leurs propriétés exceptionnelles viennent des propriétés magnétiques intrinsèques de la phase Nd2Fe14B et de leur microstructure. Cependant, les machines électriques fonctionnent entre 120 et 180°C et les propriétés magnétiques extrinsèques telles que la coercitivité et la rémanence diminuent avec la température. Un moyen d’améliorer la coercitivité des aimants frittés Nd-Fe-B est la subst

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Jrad, Wassim. "Dynamic behavior of thin-walled beams : Analytical, numerical and experimental approaches." Electronic Thesis or Diss., Université de Lorraine, 2019. http://www.theses.fr/2019LORR0271.

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Les poutres à parois minces à sections ouvertes sont des éléments de base des ouvrages courants en génie civil, de l'automobile et de l'aéronautique. En raison de leur élancement et la forme des sections, elles sont très sensibles à la torsion et aux instabilités aussi bien en statique qu’en dynamique. En dynamique, les modes de vibration en torsion sont plus dominants par rapport au modes de flexion classiques. Pour ces raisons, les défaillances planaires de telles structures sont connues pour être une exception plutôt qu'une règle. Dans ce travail de thèse, on s’intéresse au comportement dyn

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BOIGUES, MUNOZ CARLOS. "Computational Simulation of Solid Oxide Fuel Cells – Integrating numerical and experimental approaches." Doctoral thesis, Università Politecnica delle Marche, 2015. http://hdl.handle.net/11566/242989.

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Le celle a combustibile ad ossido solido (Solid Oxide Fuel Cells - SOFCs) sono una tecnologia promettente in grado di produrre potenza elettrica e termica con un’efficienza eccezionale. Tuttavia, è necessaria una comprensione più approfondita dei processi fisico-chimici che si verificano all’interno della cella per risolvere la maggior parte dei problemi di degradazione che attualmente impediscono la maturità della tecnologia. Un approccio sistematico e sinergico tra misure sperimentali, l’uso di strumenti di analisi e techniche innovative – con particolare attenzione alla deconvoluzione degli

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Cescatti, Elvis. "Combined experimental and numerical Approaches to the Assessment of historical Masonry Structures." Doctoral thesis, Università degli studi di Trento, 2016. https://hdl.handle.net/11572/368102.

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The assessment and the conservation of historical masonry structures are very challenging issues. According to the actual methodology, all the phases of the entire process of assessment require efforts and reciprocal comparison in order to understand reliably the structural behaviour and to design effective interventions. This thesis goes through such phases (anamnesis, diagnosis and treatment), introducing some innovations in each step and connecting the experimental experiences to models with the support of some real cases. Three techniques are developed about the knowledge phase, namely son

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Cescatti, Elvis. "Combined experimental and numerical Approaches to the Assessment of historical Masonry Structures." Doctoral thesis, University of Trento, 2016. http://eprints-phd.biblio.unitn.it/1742/1/PhD_th_Cescatti.pdf.

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The assessment and the conservation of historical masonry structures are very challenging issues. According to the actual methodology, all the phases of the entire process of assessment require efforts and reciprocal comparison in order to understand reliably the structural behaviour and to design effective interventions. This thesis goes through such phases (anamnesis, diagnosis and treatment), introducing some innovations in each step and connecting the experimental experiences to models with the support of some real cases. Three techniques are developed about the knowledge phase, namely son

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Khoueiry, Nicole. "Study of granular platforms behaviour over soft subgrade reinforced by geosynthetics : Experimental and numerical approaches." Thesis, Lyon, 2020. http://www.theses.fr/2020LYSEI027.

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Les géosynthétiques sont utilisés depuis les années 70 dans le renforcement des plateformes granulaires reposant sur des sols de faible portance pour des applications de routes non revêtues. La complexité des mécanismes développés et la diversité des produits de renforcement nécessitent encore d’étudier ces plateformes renforcées. Un essai au laboratoire permettant de tester des plateformes à échelle réelle a été développé. Une plateforme granulaire non revêtue reposant sur un sol de faible portance a été reproduite. Un protocole de mise en place de ce sol a été élaboré pour assurer son homogé

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Ding, Zhongman. "Numerical and experimental analysis on Resin Injection Pultrusion (RIP) Process - using macroscopic and microscopic approaches /." The Ohio State University, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=osu1486399160105717.

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Livros sobre o assunto "Experimental and numerical approaches"

1

Emami, S. D. Thulium-doped fiber amplifier, numerical and experimental approach. Nova Science Publishers, 2011.

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2

Ratingen, Michiel René van. Mechanical identification of inhomogeneous solids: A mixed numerical experimental approach. Technische Universiteit Eindhoven, 1994.

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3

Wang, Hong-Bo. Heat transfer analysis of components of construction exposed to fire: A theoretical, numerical and experimental approach. University of Salford, 1995.

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4

Berghaus, Donald. Numerical Methods for Experimental Mechanics. Springer US, 2001. http://dx.doi.org/10.1007/978-1-4615-1473-2.

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Josep, Sol Maria, Beddor Patrice Speeter, and Ohala Manjari, eds. Experimental approaches to phonology. Oxford University Press, 2007.

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6

Josep, Sol Maria, Beddor Patrice Speeter, and Ohala Manjari, eds. Experimental approaches to phonology. Oxford University Press, 2007.

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7

Maria-Josep, Solé, Beddor Patrice Speeter, and Ohala Manjari, eds. Experimental approaches to phonology. Oxford University Press, 2007.

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8

Josep, Sol Maria, Beddor Patrice Speeter, and Ohala Manjari, eds. Experimental approaches to phonology. Oxford University Press, 2007.

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9

S, Oran Elaine, and Boris Jay P, eds. Numerical approaches to combustion modeling. American Institute of Aeronautics and Astronautics, 1991.

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10

Bequet, Marc C., ed. Teleoperation: Numerical Simulation and Experimental Validation. Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-2648-9.

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Capítulos de livros sobre o assunto "Experimental and numerical approaches"

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Yoshioka, Keita, Mathias Nest, Daniel Pötschke, Amir Shoarian Sattari, Patrick Schmidt, and David Krach. "Numerical Platform." In GeomInt–Mechanical Integrity of Host Rocks. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-61909-1_3.

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AbstractAn essential scientific goal of the GeomInt project is the analysis of potentials and limitations of different numerical approaches for the modelling of discontinuities in the rocks under consideration in order to improve the understanding of methods and their synergies with regard to theoretical and numerical fundamentals. As numerical methods, the “Lattice Element Method” (LEM), the non-continuous discontinuum methods “Discrete Element Method” (DEM), the “Smoothed Particle Hydrodynamics” (SPH), the “Forces on Fracture Surfaces” (FFS) as well as the continuum approaches “Phase-Field Method” (PFM), “Lower-Interface-Method” (LIE), “Non-Local Deformation” (NLD) and the “Hybrid-Dimensional Finite-Element-Method” (HDF) will be systematically investigated and appropriately extended based on experimental results (Fig. 3.1).

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Nwankwo, Chinyere O., and Jeffrey Mahachi. "Analytical and Numerical Approaches in Predicting the Flexural Behaviour of Reinforced Concrete Beams." In Lecture Notes in Civil Engineering. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-69626-8_119.

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AbstractThe structural design of buildings, bridges and all other civil engineering structures heavily relies on understanding the beam element, particularly its flexural behaviour. This chapter explores both analytical and numerical approaches to predict the flexural behaviour of reinforced concrete beams. Force equilibrium and strain compatibility equations were used for the analytical approach, while ANSYS, a finite element software, was used for the numerical approach. Comprehensive insights into the analysis, from concrete and reinforcing steel material models to mesh sensitivity analysis in the numerical approach, are provided. The analytical and numerical methods used were validated with an experimental case study beam. The load–deflection curve of a reinforced concrete beam obtained from experimental, analytical and numerical approaches is presented and found to have good correlation. The chapter further provides insights into the efficiency and limitations of each method in predicting the beam behaviour. The findings of this study will guide researchers and practitioners in selecting appropriate methodologies for structural analysis problems.

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3

Senkel, Luise, Andreas Rauh, and Harald Aschemann. "Experimental and Numerical Validation of a Reliable Sliding Mode Control Strategy Considering Uncertainty with Interval Arithmetic." In Variable-Structure Approaches. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-31539-3_4.

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Dimovski, Aleksandar S. "Quantitative Program Sketching using Lifted Static Analysis." In Fundamental Approaches to Software Engineering. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-99429-7_6.

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AbstractWe present a novel approach for resolving numerical program sketches under Boolean and quantitative objectives. The input is a program sketch, which represents a partial program with missing numerical parameters (holes). The aim is to automatically synthesize values for the parameters, such that the resulting complete program satisfies: a Boolean (qualitative) specification given in the form of assertions; and a quantitative specification that estimates the number of execution steps to termination and which the synthesizer is expected to optimize.To address the above quantitative sketching problem, we encode a program sketch as a program family (a.k.a. software product line) and analyze it by the specifically designed lifted analysis algorithms based on abstract interpretation. In particular, we use a combination of forward (numerical) and backward (termination) lifted analysis of program families to find the variants (family members) that satisfy all assertions, and moreover are optimal with respect to the given quantitative objective. Such obtained variants represent “correct & optimal” sketch realizations.We present a prototype implementation of our approach within the FamilySketcher tool for resolving C sketches with numerical types. We have evaluated our approach on a set of benchmarks, and experimental results confirm the effectiveness of our approach.

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Kastratović, Gordana, Nenad Vidanović, Aleksandar Grbović, Nikola Mirkov, and Boško Rašuo. "Numerical Simulation of Crack Propagation in Seven-Wire Strand." In Computational and Experimental Approaches in Materials Science and Engineering. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-30853-7_5.

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Vidakovic, Jelena, Andrija Devic, Nikola Zivkovic, Vladimir Kvrgic, and Pavle Stepanic. "Practical Approaches for Robot Dynamic Model Implementation for Control and Simulation Purposes." In Experimental Research and Numerical Simulation in Applied Sciences. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-19499-3_8.

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Baltic, Marija, Jelena Svorcan, Ognjen Pekovic, and Toni Ivanov. "Comparative Numerical and Experimental Modal Analysis of Aluminum and Composite Plates." In Computational and Experimental Approaches in Materials Science and Engineering. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-30853-7_4.

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Dimovski, Aleksandar S., Sven Apel, and Axel Legay. "A Decision Tree Lifted Domain for Analyzing Program Families with Numerical Features." In Fundamental Approaches to Software Engineering. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-71500-7_4.

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AbstractLifted (family-based) static analysis by abstract interpretation is capable of analyzing all variants of a program family simultaneously, in a single run without generating any of the variants explicitly. The elements of the underlying lifted analysis domain are tuples, which maintain one property per variant. Still, explicit property enumeration in tuples, one by one for all variants, immediately yields combinatorial explosion. This is particularly apparent in the case of program families that, apart from Boolean features, contain also numerical features with large domains, thus giving rise to astronomical configuration spaces.The key for an efficient lifted analysis is a proper handling of variability-specific constructs of the language (e.g., feature-based runtime tests and $$\texttt {\#if}$$ # if directives). In this work, we introduce a new symbolic representation of the lifted abstract domain that can efficiently analyze program families with numerical features. This makes sharing between property elements corresponding to different variants explicitly possible. The elements of the new lifted domain are constraint-based decision trees, where decision nodes are labeled with linear constraints defined over numerical features and the leaf nodes belong to an existing single-program analysis domain. To illustrate the potential of this representation, we have implemented an experimental lifted static analyzer, called SPLNum$$^2$$ 2 Analyzer, for inferring invariants of C programs. An empirical evaluation on BusyBox and on benchmarks from SV-COMP yields promising preliminary results indicating that our decision trees-based approach is effective and outperforms the baseline tuple-based approach.

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Maierhofer, Johannes, Christian Wagner, Thomas Thümmel, and Daniel Rixen. "Progress in Calibrating Active Magnetic Bearings with Numerical and Experimental Approaches." In Mechanisms and Machine Science. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-99272-3_18.

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Okrouhlík, M. "Impact Induced StressWave Energy Flux – Validation of Numerical and Experimental Approaches." In Springer Proceedings in Physics. Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-2069-5_3.

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Trabalhos de conferências sobre o assunto "Experimental and numerical approaches"

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Bonner, Colin, Drew Barret, Ellen Gupta, et al. "Manufacturing Approaches for Experimental Validation of Numerically Designed Conformal Metasurfaces." In 2024 IEEE International Symposium on Antennas and Propagation and INC/USNC‐URSI Radio Science Meeting (AP-S/INC-USNC-URSI). IEEE, 2024. http://dx.doi.org/10.1109/ap-s/inc-usnc-ursi52054.2024.10686969.

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Conrad, Brett, Tommy Mikalson, Brian Yeung, Ahmed Hassanin, and Atul Ganpatye. "Girth Weld Reinforcement Case Study: A Numerical and Experimental Approach." In 37th International Pipeline Pigging and Integrity Management Conference 2025. Clarion Technical Conferences, 2025. https://doi.org/10.52202/078572-0064.

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Zhadobov, Maxim, Ronan Sauleau, Yves Le Drean, Stanislav I. Alekseev, and Marvin C. Ziskin. "Numerical and experimental approaches to millimeter-wave dosimetry for in vitro experiments." In 2008 33rd International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz 2008). IEEE, 2008. http://dx.doi.org/10.1109/icimw.2008.4665728.

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Tanaka, Yasunori, Tomoyuki Nakano, Sun Hao, et al. "Fundamental studies on switching arcs — Experimental and numerical approaches." In 2017 4th International Conference on Electric Power Equipment - Switching Technology (ICEPE-ST). IEEE, 2017. http://dx.doi.org/10.1109/icepe-st.2017.8189008.

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Raid, Idir, Sebastien Gallois-Garreignot, Rafael Estevez, and Vincent Coutellier. "Seal Rings Toughness Characterization by Numerical and Experimental Approaches." In 2018 IEEE 68th Electronic Components and Technology Conference (ECTC). IEEE, 2018. http://dx.doi.org/10.1109/ectc.2018.00155.

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Saat, Ahmet, Halime Esra Işık, Ahmet Arslan, Erinç Erdem, and Yalın Kaptan. "Numerical and Experimental Approaches for Inertial Particle Separator Design." In ASME Turbo Expo 2023: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2023. http://dx.doi.org/10.1115/gt2023-103056.

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Abstract Gas turbine engines, especially turboshaft engines, can be exposed to the unfavourable environmental conditions including ingested sand, dust, rain and salt spray etc. that can cause significant deterioration in engine life and affect its performance. Engine Air Particle Separators (EAPS) fitted to intakes are used for protection of engine parts from the ingestion of foreign particles. Since integrated inertial particle separators (IPS), one of the EAPS’s, have more advantageous characteristics compared with other solutions they are widely preferred. The main aim of this article is to

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Crespo, Luis G., Sean P. Kenny, and Daniel P. Giesy. "A Comparison of Metamodeling Techniques via Numerical Experiments." In 18th AIAA Non-Deterministic Approaches Conference. American Institute of Aeronautics and Astronautics, 2016. http://dx.doi.org/10.2514/6.2016-0432.

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Zhao, Y., R. S. Brodkey, and S. Nakamura. "Study of 3D Mixing Processes by Numerical and Experimental Approaches." In ASME 2002 Joint U.S.-European Fluids Engineering Division Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/fedsm2002-31169.

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Mixing vessels are widely used for blending and chemical reactions. Although much has been done on mixing processes, the complex, three-dimensional flow phenomena are still not well understood. The purpose of our first step in this research is the simulation and validation of time-resolved, three-dimensional velocity vector data. Such results are an essential part of the design of mixing systems, but are generally not available to the engineers. The computational work involves direct numerical simulation (DNS) and large eddy simulation (LES) of the Navier-Stokes equations. Later, modeling of t

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Jamali, Hazim, M. N. Mohammed, H. S. S. Aljibori, et al. "Vibration Characteristics of Perforated Plate using Experimental and Numerical Approaches." In 2023 IEEE 8th International Conference on Engineering Technologies and Applied Sciences (ICETAS). IEEE, 2023. http://dx.doi.org/10.1109/icetas59148.2023.10346538.

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Heilig, Georg A., and Michael May. "Comparison of Experimental, Numerical and Analytical approaches to HRAM events." In AIAA SCITECH 2023 Forum. American Institute of Aeronautics and Astronautics, 2023. http://dx.doi.org/10.2514/6.2023-1841.

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Relatórios de organizações sobre o assunto "Experimental and numerical approaches"

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Ramakrishnan, Aravind, Ashraf Alrajhi, Egemen Okte, Hasan Ozer, and Imad Al-Qadi. Truck-Platooning Impacts on Flexible Pavements: Experimental and Mechanistic Approaches. Illinois Center for Transportation, 2021. http://dx.doi.org/10.36501/0197-9191/21-038.

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Truck platoons are expected to improve safety and reduce fuel consumption. However, their use is projected to accelerate pavement damage due to channelized-load application (lack of wander) and potentially reduced duration between truck-loading applications (reduced rest period). The effect of wander on pavement damage is well documented, while relatively few studies are available on the effect of rest period on pavement permanent deformation. Therefore, the main objective of this study was to quantify the impact of rest period theoretically, using a numerical method, and experimentally, using

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2

Rahai, Hamid, Assma Begum, Jeremy Bonifacio, and Ryan Moffit. Experimental Investigations of Wind Shear from Passing a Vehicle. Mineta Transportation Institute, 2024. https://doi.org/10.31979/mti.2024.2334.

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Wind energy can be harnessed for various commercial and transportation-related applications. This study assessed experimentally the potential of capturing wind energy from the passage of vehicles for electric power generation. Both wind tunnel experiments and field tests were performed. The wind tunnel experiments were performed in an open-circuit low-speed wind tunnel at a free-stream mean velocity of 23 m/s. Five PVC pipes placed adjacent to the wind-blowing domain were used to simulate the columns under a freeway overpass. A scaled Ahmad body (simplified car body model) was used as the vehi

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Naderer, Thomas, Alexander Hammer, Wolfgang Roland, Maximilian Zacher, and Gerald Berger-Weber. Optimizing modeling the multilayer coextrusion flow of non-newtonian fluids through rectangular ducts: appropriate shear rate definition for a local power law formulation. Universidad de los Andes, 2024. https://doi.org/10.51573/andes.pps39.gs.ms.4.

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The accuracy of viscosity predictions is a crucial aspect of polymer melt flow modeling and essential for the design of coextrusion die systems. In the field of non-Newtonian fluid modeling for coextrusion flows through rectangular ducts, significant progress has been made in understanding multilayer flow dynamics. Our fundamental research, employing numerical techniques such as the shooting method, finite element method, and finite difference method for flow evaluation, has established a critical base for the field. Our current research advances fluid dynamics by refining our existing numeric

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4

Wallis. L51614 Slug Frequency in Horizontal Gas-Liquid Flow. Pipeline Research Council International, Inc. (PRCI), 1990. http://dx.doi.org/10.55274/r0011058.

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This report responds to A.G.A.s objective of initiating and planning means to create a reliable, mechanistic method of slug frequency prediction. Specific objectives were to: Update the prior review of existing knowledge Identify one or more alternative modelling approaches Recommend additional work if required Examination of empirical correlations for slug frequency shows that they have uncertainties which are large compared with experimental data. A mechanistic approach is sought. Previous mechanistic models have been either incomplete or numerically unstable. Several improvements were made

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Wang, Yao, Mirela D. Tumbeva, and Ashley P. Thrall. Evaluating Reserve Strength of Girder Bridges Due to Bridge Rail Load Shedding. Purdue University, 2021. http://dx.doi.org/10.5703/1288284317308.

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This research experimentally and numerically evaluated the reserve strength of girder bridges due to bridge rail load shedding. The investigation included: (1) performing non-destructive field testing on two steel girder bridges and one prestressed concrete girder bridge, (2) developing validated finite element numerical models, and (3) performing parametric numerical investigations using the validated numerical modeling approach. Measured data indicated that intact, integral, reinforced concrete rails participate in carrying live load. Research results culminated in recommendations to evaluat

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Rose and Luo. L52069 Guided Wave Sizing and Discrimination for SCC Magnetostriction ILI Inspection. Pipeline Research Council International, Inc. (PRCI), 2003. http://dx.doi.org/10.55274/r0011179.

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With the goal to be able to inspect a large area of the pipe from a single sensor position, hence the development of what we call guided wave inspection. From one point on the circumference of the pipe, it is therefore proposed to inspect the entire circumferential area of the pipe. This approach leads to inspection efficiency.� Experimental techniques cannot be developed on a trial and error basis. The purpose of this work is therefore to develop a guided wave propagation model and subsequent numerical solutions to assist in the �theoretically driven� sensor design and data acquisition system

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Ayoul-Guilmard, Q., S. Ganesh, M. Nuñez, et al. D5.4 Report on MLMC for time dependent problems. Scipedia, 2021. http://dx.doi.org/10.23967/exaqute.2021.2.005.

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In this report, we study the use of Multi-Level Monte Carlo (MLMC) methods for time dependent problems. It was found that the usability of MLMC methods depends strongly on whether or not the underlying time dependent problem is chaotic in nature. Numerical experiments are conducted on both simple problems, as well as fluid flow problems of practical interest to the ExaQUte project, to demonstrate this. For the non-chaotic cases, the hypotheses that enable the use of MLMC methods were found to be satisfied. For the chaotic cases, especially the case of high Reynolds’ number fluid flow, the hypo

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Jaros, John A. Experimental Approaches at Linear Colliders. Office of Scientific and Technical Information (OSTI), 2002. http://dx.doi.org/10.2172/799006.

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Jury, William A., and David Russo. Characterization of Field-Scale Solute Transport in Spatially Variable Unsaturated Field Soils. United States Department of Agriculture, 1994. http://dx.doi.org/10.32747/1994.7568772.bard.

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This report describes activity conducted in several lines of research associated with field-scale water and solute processes. A major effort was put forth developing a stochastic continuum analysis for an important class of problems involving flow of reactive and non reactive chemicals under steady unsaturated flow. The field-scale velocity covariance tensor has been derived from local soil properties and their variability, producing a large-scale description of the medium that embodies all of the local variability in a statistical sense. Special cases of anisotropic medium properties not alig

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Tan, Peng, and Nicholas Sitar. Parallel Level-Set DEM (LS-DEM) Development and Application to the Study of Deformation and Flow of Granular Media. Pacific Earthquake Engineering Research Center, University of California, Berkeley, CA, 2023. http://dx.doi.org/10.55461/kmiz5819.

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We present a systematic investigation of computational approaches to the modeling of granular materials. Granular materials are ubiquitous in everyday life and in a variety of engineering and industrial applications. Despite the apparent simplicity of the laws governing particle-scale interactions, predicting the continuum mechanical response of granular materials still poses extraordinary challenges. This is largely due to the complex history dependence resulting from continuous rearrangement of the microstructure of granular material, as well as the mechanical interlocking due to grain morph

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