Relevant bibliographies by topics / 3D relief model

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic '3D relief model'

Author: Grafiati
Published: 28 May 2022
Last updated: 30 July 2025

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Journal articles on the topic "3D relief model"

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Galushkin, Alexander Alexeevich, Sofia Lvovna Gonobobleva, Vadim Alexandrovich Parfenov, and Anton Alexandrovich Zhuravlev. "Application of 3D Scanning for Documentation and Creation of Physical Copies of Estampages." Restaurator. International Journal for the Preservation of Library and Archival Material 40, no. 1 (2019): 1–14. http://dx.doi.org/10.1515/res-2018-0010.

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Abstract This article discusses the creation of a 3D archive and physical copies of paper reliefs (estamages). A matrix of the estampage is fabricated by the combined use of 3D scanning technology and additive technologies which can then be used for the documentation and conservation of the original estampage. In order to digitize the relief, an optical 3D scanner based on structured light was used and the processing of the 3D model is discussed in detail. Scanning data is uploaded into the microprocessor of a 3D laser printer using stereolithography technology which then creates a conservatio
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Zhang, Yu‐Wei, Wenping Wang, Yanzhao Chen, Hui Liu, Zhongping Ji, and Caiming Zhang. "From 2.5D Bas‐relief to 3D Portrait Model." Computer Graphics Forum 39, no. 6 (2020): 258–68. http://dx.doi.org/10.1111/cgf.14016.

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Gachenko, Andrey, and Alexei Hmelnov. "Problems, methods and technologies of combined 3D model construction for underwater and above-water relief." E3S Web of Conferences 149 (2020): 02002. http://dx.doi.org/10.1051/e3sconf/202014902002.

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In the article we describe the methods for construction of underwater 3D relief (bathymetry) and combining it with the corresponding ground relief (terrain) when the bathymetry information is of much lower quality than that of terrain. We have developed an algorithm for combining the low quality underwater relief with the higher quality ground relief using Delaunay triangulations. The resulting combined 3D model of relief has no noticeable artifacts and can be used to solve various hydrological tasks, such as computation of the HPP reservoir water level in dependence to the water discharges of
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Butenko, Ye, O. Kutsenko, О. Tertyshna, Ye Tkachuk, and K. Yaretska. "Formation of a dense cloud of points and its processing when creating a digital model of the terrain." Zemleustrìj kadastr ì monìtorìng zemelʹ 42, no. 3 (2024): 109–22. https://doi.org/10.31548/zemleustriy2024.03.09.

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The article explores the creation of digital terrain models (DRMs) based on dense point cloud classification in QGIS, Digitals, and 3D Survey software. In the research process, a dense cloud of points created during 3D scanning of the territory of the botanical garden of NUBiP of Ukraine was used, followed by classification and construction of digital relief models in various software tools. The stages of point cloud classification, creation of classification layers, data export to QGIS, Digitals and 3D Survey software tools for further modeling and drawing of models with isolines were studied
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Murtala, Sheriff, Ye-Chan Choi, and Kang-Sun Choi. "A Machine Learning Method Based on 3D Local Surface Representation for Recognizing the Inscriptions on Ancient Stele." Applied Sciences 11, no. 12 (2021): 5758. http://dx.doi.org/10.3390/app11125758.

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It is challenging to extract reliefs from ancient steles due to their rough surfaces which contain relief-like noise such as dents and scratches. In this paper, we propose a method to segment relief region from 3D scanned ancient stele by exploiting local surface characteristics. For each surface point, four points that are apart from the reference point along the direction of the principal curvatures of the point are identified. The spin images of the reference point and the four relative points are concatenated to provide additional local surface information of the reference point. A random
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Celms, Armands, Vivita Pukite, Ilona Reke, and Jolanta Luksa. "Possibilities of use of remote sensing technology in survey process in the territory of Pils island in Jelgava." Baltic Surveying 9 (December 5, 2018): 16–23. http://dx.doi.org/10.22616/j.balticsurveying.2018.014.

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In the study, creation of 3D surface relief model in Jelgava, for southern part of the Castle Island is depicted. Information about remote sensing, its historical development, as well as directions of remote sensing, development of photogrammetry and laser scanning is summarized and analysed. Principles of work and methods of photogrammetry and laser scanning. Information about creation of surface relief model from planning of unmanned aircraft, data capture and alignment to the end product – surface relief model. Application of evaluation of data obtained. The purpose of the study – to create
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Andrey, Gachenko, and Khmelnov Alexey. "Technology of 3d relief modelling based on Delaunay triangulation algorithms." E3S Web of Conferences 75 (2019): 03002. http://dx.doi.org/10.1051/e3sconf/20197503002.

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This paper represents the algorithm of superimposing underwater relief and land relief basing on heterogeneous initial data with the use of Delaunay triangulation. As a result of superimposition a qualitative 3D relief model has been created. This model can be used in generating forecasts of reservoir shoreline alterations related to hydroelectric power plant flushing. The described technology has been approbated in various practical tasks and has shown its efficiency.
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MASLAKOV, EVGENY ALEXANDROVICH, and MAXIM ANDREEVICH POPOV. "RECREATIONOFA 3D-MODEL OF THE RELIEF OF THE ALBAZIN OSTROG." Messenger AmSU, no. 95 (2021): 54–58. http://dx.doi.org/10.22250/jasu.95.11.

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Lurie, I. K., and M. V. Lurie. "Modeling 3D-changes in the terrain relief due to slope erosion." Geodesy and Cartography 993, no. 3 (2023): 35–42. http://dx.doi.org/10.22389/0016-7126-2023-993-3-35-42.

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The authors propose an algorithm for predictive monitoring of 3D-changes in the terrain relief due to the processes of slope erosion. The algorithm is based on the phenomenological law, from which it follows that the intensity of soil losses at the slope is proportional in magnitude and inverse in the direction of the declivity height gradient vector. In conjunction with the differential equation of mass balance, a mathematical model of the terrain relief change is built. The model enables calculating it at an arbitrary time according to its shape at the initial moment based on the solution of
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Sukhinov, A. I., V. V. Kholodkov, E. A. Protsenko, and S. V. Protsenko. "Dynamically changing bottom relief modeling based on spatially inhomogeneous 3D mathematical model of wave hydrodynamics." E3S Web of Conferences 402 (2023): 03030. http://dx.doi.org/10.1051/e3sconf/202340203030.

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The article is devoted to the construction and adaptation to natural and climatic conditions and geographical features of precision mathematical models of hydrodynamics of wave processes and relief formation. The incompleteness of data is characteristic of the new tasks considered in the article, the solution of this problem is carried out by involving remote sensing and cadastral survey data. It is essential to include in this complex algorithm for constructing raster models of dynamically changing bottom relief based on known cadastral survey data and remote sensing data. The software packag
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Dissertations / Theses on the topic "3D relief model"

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Баранова, Ірина Володимирівна, Ирина Владимировна Баранова, Iryna Volodymyrivna Baranova, and Y. Voitsekhovskyi. "Information Technology for 3D Relief Model Generation By Color Parameters of Pixel." Thesis, Sumy State University, 2017. http://essuir.sumdu.edu.ua/handle/123456789/55764.

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Using of digital maps in simulators will dynamically change the tasks options and improve the quality of military professionals. The paper said information technology to get 3D relief model for digital maps. Created simulator module has a user friendly interface with a large number of configuration options that allow well prepared for raster images for recognition. The generation of digital terrain automatically. The resulting digital map can edit, change display settings, zoom and move in the world coordinate system, add it necessary to vegetation and buildings.
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Зубко, В. С., Ірина Володимирівна Баранова, Ирина Владимировна Баранова та Iryna Volodymyrivna Baranova. "Інформаційна технологія генерації 3D-моделі рельєфу за параметрами яскравості пікселів растрового зображення". Thesis, Сумський державний університет, 2017. http://essuir.sumdu.edu.ua/handle/123456789/64842.

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Розробка інформаційної технології динамічного моделювання тривимірної моделі карти рельєфу, яка поєднує в собі аналіз монохромного растрового зображення та генерацію на його основі тривимірної полігональної моделі карти, і була метою даної роботи.
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Войцеховський, Я. С., Ірина Володимирівна Баранова, Ирина Владимировна Баранова та Iryna Volodymyrivna Baranova. "Інформаційна технологія генерації 3D-моделі рельєфу за параметрами кольору пікселів растрового зображення". Thesis, Сумський державний університет, 2017. http://essuir.sumdu.edu.ua/handle/123456789/64753.

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Модуль тренажеру аналізує вхідне кольорове растрове зображення (на прикладі фрагменту фізичної карти поверхні), за необхідності дозволяє виконувати операції редагування растру – повороту, масштабування, зсуву тощо.
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Czakó, Alexander. "Stanovení chyby převodu u čelního ozubení s šikmými zuby." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-433537.

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This diploma thesis primarily deals with the transmission error issue which is one of the dominant sources of vibration in gear pairs and transmission systems. The vibrations subsequently generate noise which is often subjected to increasingly stricter demands across the industry, including the automotive one. It turns out that reducing the peak-to-peak value of the transmission error has a beneficial effect on the vibro-acoustic properties of gears and gear pairs. This thesis aims to determine the transmission error under static conditions, since a gear pair with a low static transmission err
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Kroupa, Ondřej. "Digitální model reliéfu v areálu Admas." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2017. http://www.nusl.cz/ntk/nusl-390213.

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The goal of this thesis is to scan part of the complex research center AdMaS using terrestrial laser scanner, from obtained data draw up a 3D terrain model and compare the height accuracy with conventional terrestrial measurement. The thesis is focused to software, which allow processing of point clouds and prepare the 3D model. The output of this work is the 3D terrain model and two transverse profiles for vertical comparison of two measurement methods.
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Hittner, Brian Edward. "Rendering large-scale terrain models and positioning objects in relation to 3D terrain." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2003. http://library.nps.navy.mil/uhtbin/hyperion-image/03Dec%5FHittner.pdf.

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Thesis (M.S. in Modeling, Virtual Environments and Simulation)--Naval Postgraduate School, December 2003.<br>Thesis advisor(s): Don Brutzman, Curt Blais. Includes bibliographical references (p. 117-118). Also available online.
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Janod, François. "Propagation des ondes large bande dans des milieux élastiques 3D : méthodes d'éléments de frontière en temps et couplage avec les différences finies." Phd thesis, Université Joseph Fourier (Grenoble), 1999. http://tel.archives-ouvertes.fr/tel-00749683.

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Ce travail de thèse a porté sur le développement de méthodes numériques permettant de simuler la propagation des ondes sismiques "large bande" dans des milieux à géométries tridimensionnelles simples: un nombre réduit de discontinuités, surmontés d'une topographie 3D. Le champ incident modélisé doit pouvoir émaner d'une source ponctuelle proche de la surface. Dans l'introduction générale nous précisons les objectifs de cette étude, et passons en revue les méthodes numériques utilisées en sciences de la terre. Une méthode d'éléments de frontière reposant sur une représentation intégrale directe
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Books on the topic "3D relief model"

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Oster, Markus. Ein neues dynamisches Visualisierungssystem zur Online- und Offlinepräsentation interaktiver 3D-Geländemodelle. Geographisches Institut der Ruhr-Universität, 2007.

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Svrakic, Dragan M., and Mirjana Divac Jovanovic. The Fragmented Personality. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780190884574.001.0001.

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This book pioneers a new model of personality disorder primarily intended to serve mental health professionals, those already in practice and equally those in training. In contrast to the static concepts of mental normalcy and pathology, the presented nosology is dynamic (accounts for the reversibility of mental functioning) and personalized, context- and time sensitive. In a 3D diagnostic cylinder, the coordinates cross match the person’s common level of mental functioning (vertical diagnosis) with his or her behavior style (horizontal diagnosis) at a point in space and a unit of time, giving
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Book chapters on the topic "3D relief model"

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Teshima, Yoshinori, Yohsuke Hosoya, Kazuma Sakai, et al. "Development of Tactile Globe by Additive Manufacturing." In Lecture Notes in Computer Science. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-58796-3_49.

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AbstractTo understand geographical positions, globes adapted for tactile learning is needed for people with visual impairments. Therefore, we created three-dimensional (3D) tactile models of the earth for the visually impaired, utilizing the exact topography data obtained by planetary explorations. Additively manufactured 3D models of the earth can impart an exact shape of relief on their spherical surfaces. In this study, we made improvements to existing models to satisfy the requirements of tactile learning. These improvements were the addition of the equator, prime meridian, and two poles t
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Zhao, Daiyao, Jingnan Han, Xianggang Liu, Zhouchang Zuo, and Kexun Zheng. "Exploration of the Application of Fine Reconstruction of Unmanned Aerial Vehicles in Landslide Disaster Investigation and Management." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-9184-2_40.

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AbstractThe mountainous terrain in the southwest region is characterized by significant topographic relief and abundant rainfall. When constructing new energy infrastructure such as booster stations in mountainous areas, it is extremely easy to induce landslide instability due to the excavation of mountain slopes. This article takes the Wangmo landslide in the southwestern region of Guizhou Province as the research object, uses multi-rotor drones as platforms, and utilizes techniques such as ground-based photogrammetry and close-range photogrammetry to detect and obtain relevant parameters suc
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Peterson, Eric, and Bhavleen Kaur. "Printing Compound-Curved Sandwich Structures with Robotic Multi-Bias Additive Manufacturing." In Computational Design and Robotic Fabrication. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-99-8405-3_44.

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AbstractA research team at Florida International University Robotics and Digital Fabrication Lab has developed a novel method for 3d-printing curved open grid core sandwich structures using a thermoplastic extruder mounted on a robotic arm. This print-on-print additive manufacturing (AM) method relies on the 3d modeling software Rhinoceros and its parametric software plugin Grasshopper with Kuka-Parametric Robotic Control (Kuka-PRC) to convert NURBS surfaces into multi-bias additive manufacturing (MBAM) toolpaths. While several high-profile projects including the University of Stuttgart ICD/IT
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Özdemir, E., L. Kiesewetter, K. Antorveza, et al. "Towards Self-shaping Metamaterial Shells:." In Proceedings of the 2021 DigitalFUTURES. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-5983-6_26.

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AbstractDouble curvature enables elegant and material-efficient shell structures, but their construction typically relies on heavy machining, manual labor, and the additional use of material wasted as one-off formwork. Using a material’s intrinsic properties for self-shaping is an energy and resource-efficient solution to this problem. This research presents a fabrication approach for self-shaping double-curved shell structures combining the hygroscopic shape-changing and scalability of wood actuators with the tunability of 3D-printed metamaterial patterning. Using hybrid robotic fabrication,
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Liu, Zhibo, Feng Han, Guoqing Ni, Tao Liang, and Miaomiao Qi. "3D Visualization of Railway Development Using GIS and BIM Techniques." In Advances in Transdisciplinary Engineering. IOS Press, 2020. http://dx.doi.org/10.3233/atde200233.

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Along with the proposal of the Belt and Road initiative, the Eurasian railway lines with China and Russia as the center are entering a new era of strategic coordination. Thus, carrying out digital location design with modern mapping information technology has become a necessary means for improving railway locating efficiency and quality. Employing the GIS-based large 3D strip terrain modeling approach and its application, the present study takes consideration in factors such as slope, relief, geological disasters, and locating-influencing surface features so as to construct the most economical
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D'Amico Moreno, D'Amico Gabriele, and Roncoletta Piero. "A 3-D Parametric Biomechanical Skeleton Model for Posture and Spine Shape Analysis." In Studies in Health Technology and Informatics. IOS Press, 2002. https://doi.org/10.3233/978-1-60750-932-5-365.

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A project has been undertaken by our group to merge different segmental biomechanical models presented in literature into a full 3D parametric human skeleton representation, based on opto-electronic measurements. The obtained 3D skeleton model can then be fitted to each subject&amp;rsquo;s anthropometrical characteristics. The accuracy and precision of this model relies both on anatomical findings (cadaver dissections, in vivo measurements, and parametric regression equations) reported in literature and on the approach and signal processing procedures we largely described and discussed in prev
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Grunow, Bianka, and Valeria Di Leonardo. "Perspective Chapter: In vitro Contracting Cardiomyogenic Models from Whole Fish Embryos and Larvae – Method, Properties, and Applications." In Technologies in Cell Culture - A Journey From Basics to Advanced Applications [Working Title]. IntechOpen, 2023. http://dx.doi.org/10.5772/intechopen.113858.

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Heart diseases remain a leading cause of mortality worldwide. The development of effective treatments and interventions relies on a deep understanding of cardiac biology. Traditional two-dimensional (2D) cell cultures and animal models fall short in replicating crucial physiological and pathological features of cardiac tissue. In response, 3D cardiac models have emerged, offering a more faithful replication of the native heart tissue’s architecture and functionality in a controlled environment. Although technical hurdles limit the widespread adoption of in vitro 3D models, they hold promise fo
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Skarlatos Anastassios and Reboud Christophe. "Numerical Modelling of Eddy-Current Testing in Tubes with Non-Canonical Wall Profile Using Modal Description of the Sources." In Studies in Applied Electromagnetics and Mechanics. IOS Press, 2014. https://doi.org/10.3233/978-1-61499-354-4-111.

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A modal decomposition of 3D current sources is introduced in the finite integration technique (FIT) discretisation scheme for the solution of eddy-current testing problems in rotationally symmetric work-pieces. The original 3D problem is reformulated in this way in calculating the vector magnetic potential profile on the &amp;rho; &amp;ndash; z plane for a number of angular modes. The interest of such decomposition relies on the simpler and conformal discretisation of the work-piece, the reduction of the numerical noise, as well as the smaller size of the linear system, which allows the simult
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Lai, Zhiqing, Mingchang Lian, Songhang Chen, Guoqing Chen, and Xiaoling Lai. "Immovable Cultural Relics Preservation Through 3D Reconstruction Using NeRF." In Frontiers in Artificial Intelligence and Applications. IOS Press, 2024. http://dx.doi.org/10.3233/faia231391.

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Urban and rural development poses significant threats to immovable cultural relics, leading to their degradation and potential extinction. To address this issue, 3D reconstruction has emerged as an effective preservation method. However, traditional radar-based techniques require close scanning and extensive manual intervention, limiting their efficiency. This paper explores the application of neural radiance fields (NeRF) for visually reconstructing immovable cultural relics. NeRF employs a fully connected non-convolutional neural network to generate high-quality 3D models from 2D images. The
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Subramanian, Arunkumar, Sabesh S, Naraien Karthikeyan S, and T. Tamilanban. "NEURAL ORGANOIDS: A NEW FRONTIER IN NEURODEGENERATIVE DISEASE MODELLING AND DRUG SCREENING." In Futuristic Trends in Pharmacy & Nursing Volume 3 Book 6. Iterative International Publishers, Selfypage Developers Pvt Ltd, 2024. http://dx.doi.org/10.58532/v3bipn6p1ch6.

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Neurodegenerative diseases (NDDs) are a group of disorders characterized by nerve cell degeneration, including Alzheimer's, Parkinson's, and Huntington's diseases. Current research relies on animal models and 2D cell cultures, limiting accurate disease replication. However, 3D neural organoids, derived from stem cells, offer exciting prospects for NDD study. Neural organoids closely resemble the developing human brain and have become valuable tools for disease modeling and drug screening. They can differentiate into specific neural cell types and mimic disease-specific protein aggregation. Bra
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Conference papers on the topic "3D relief model"

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Limano, Ferric, Lintang Widyokusumo, Sri Rachmayanti, and Budsakayt Intarapasan. "3D Model AI Reconstruction Nusantara Building Based on Lalitavistara Borobudur Relief." In 2024 International Conference on TVET Excellence & Development (ICTeD). IEEE, 2024. https://doi.org/10.1109/icted62334.2024.10844662.

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Rittenbach, Andrew, Connor Imes, and John Paul Walters. "Timely Wildfire Perimeter Mapping for Unmanned Aerial Platforms." In 3D Image Acquisition and Display: Technology, Perception and Applications. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/3d.2024.fd1.7.

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Wildfire perimeter mapping currently relies on deferred processing of data from manned and orbital platforms using hand-tuned physics-based models. We demonstrate real-time on-board multispectral data processing on cost-efficient unmanned aerial platforms using ML-based semantic segmentation.
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Chen, Jingzi, Tsukasa Mizutani, and Martin Vannier. "Localizing Subsurface Voids by GPR 3D Scanner with Unsupervised Anomaly Detection." In IABSE Symposium, Tokyo 2025: Environmentally Friendly Technologies and Structures: Focusing on Sustainable Approaches. International Association for Bridge and Structural Engineering (IABSE), 2025. https://doi.org/10.2749/tokyo.2025.3085.

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&lt;p&gt;Detecting subsurface voids is crucial for sustainable road maintenance to ensure traffic safety. Ground Penetrating Radar (GPR) is pivotal for the subsurface assessments, yet traditionally relies on manual image analysis, limiting inspection frequency and risk identification. This study introduces a novel 3D unsupervised void detection method including 3 stages: first, distilling a pretrained video classification model to adapt it for 3D grayscale data. Second, training a student model and an autoencoder on an unlabelled GPR dataset using the distilled teacher model to align outputs o
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Saback, Vanessa, Jaime Gonzalez-Libreros, Cosmin Popescu, et al. "Digital Twins for asset management: platform for predictive maintenance and Trough Bridge case study." In IABSE Congress, San José 2024: Beyond Structural Engineering in a Changing World. International Association for Bridge and Structural Engineering (IABSE), 2024. https://doi.org/10.2749/sanjose.2024.1319.

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&lt;p&gt;Digital twins (DT) are seen as a transformative solution for the Engineering &amp;amp; Construction (E&amp;amp;C) industry’s challenges. However, there is a gap between DT research and operational applications. This paper proposes a framework for a DT, exemplified by a trough bridge case study at Luleå University of Technology (LTU). Traditional bridge management relies on manual, time-consuming methods, leading to reduced accuracy and reliability. The DT platform integrates a 3D model with real-time Structural Health Monitoring (SHM) data, providing a collaborative environment for as
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Gardiner, Jeremy. "3D LIDAR Rapid Prototype Relief Model of the Jurassic Coast." In Electronic Visualisation and the Arts. BCS Learning & Development, 2016. http://dx.doi.org/10.14236/ewic/eva2016.59.

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Anwar, Ali A., William Dempster, and Yevgen Gorash. "3D Micro-Macro Fluid-Structure Model of Pressure Relief Valve Leak Tightness." In ASME 2017 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/pvp2017-65403.

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Controlling and assessing the leak tightness of a Pressure Relief Valve (PRV) has been a challenge since the original design of the product. With more stringent demands from the nuclear power industry for leakproof PRV’s, closer to the set point, there has been a drive by both industry and academia for a better design method for many known metal-to-metal contacting seal/surface problems. This paper outlines a numerical modelling strategy drawn from industry experience and metrology measurements and investigates the effects of lapping and surface finish on leakage rate. Key influencing paramete
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Tseng, Yung-Ling, and Sheng-Luen Chung. "Profile conversion of a picture into a 3D model reminiscent of low relief for 3D-printing." In 2014 33rd Chinese Control Conference (CCC). IEEE, 2014. http://dx.doi.org/10.1109/chicc.2014.6897110.

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Altare, Giorgio, Massimo Rundo, and Micaela Olivetti. "3D Dynamic Simulation of a Flow Force Compensated Pressure Relief Valve." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-65624.

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The paper deals with the 3D and 0D simulation of a conical popped pressure relief valve with flow force compensation. The commercial CFD code PumpLinx® was used to create a dynamic model of the valve and the interaction between the poppet dynamics and pressure field was taken into account. The model is able to determine the equilibrium position of the poppet in order to estimate the regulated pressure as function of the flow rate. A good agreement with the experimental data was found in the evaluation of the effect of the flow force compensation. Once validated, the CFD code was used to study
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Yang, Yunchao, Alexis Lefebvre, Ge-Cheng Zha, et al. "High Fidelity Simulation of Safety Relief Valve Internal Flows." In ASME 2015 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/pvp2015-45588.

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This paper presents a numerical methodology and simulation for three-dimensional transonic flow in Safety Relief Valves. Simulation of safety relief valve flows is very challenging due to complex flow paths, high pressure variation, supersonic flow with shock and expansion waves, boundary layers, etc. The 3D unsteady Reynolds averaged Navier-Stokes (URANS) equations with one-equation Spalart-Allmaras turbulence model is used. A fifth order WENO scheme for the inviscid flux and a second order central differencing for the viscous terms are employed to discretize the Navier-Stokes equations. The
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Fornaciari, Andrea, Barbara Zardin, Massimo Borghi, and Michele Ceriola. "Analysis of the Flow Force Compensation in Relief Valves With Conical Poppet." In BATH/ASME 2020 Symposium on Fluid Power and Motion Control. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/fpmc2020-2759.

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Abstract The paper deals with experimental tests and numerical simulations (3D and 0D fluid-dynamic modelling) of a conical poppet pressure relief valve with flow force compensation. The aim of the study was to realize a dynamic model of the valve, able to consider the effect of the pressure force, which arises downstream the metering edge and is determined by both the flow forces and the pressure recovery on the flow deflector. Starting from a 3D-CFD model, it was possible to study the interaction between the poppet opening and the pressure field, in order to evaluate the total pressure force
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Reports on the topic "3D relief model"

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Tsai, Frank, Navid Jafari, Ye-Hong Chen, and Jack Cadigan. Three-dimensional underseepage evaluation for Profit Island vicinity levee, north of Baton Rouge, Louisiana. Engineer Research and Development Center (U.S.), 2022. http://dx.doi.org/10.21079/11681/44220.

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This project developed a three-dimensional (3D) seepage model to evaluate efficiency of 84 relief wells and factors of safety (FoS) along the Profit Island vicinity levee (PIVL), north of Baton Rouge, Louisiana. The PIVL model was built based on US Geological Survey MODFLOW-USG. Moreover, a 3D seepage model of RocScience RS3 was also built for a specific study of relief well experiments conducted by the US Army Corps of Engineers in the 1930s and 1940s. The PIVL model was calibrated with measured piezometric head data and relief well flow rates in 1997. Six flood scenarios were conducted: the
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Ravazdezh, Faezeh, Julio A. Ramirez, and Ghadir Haikal. Improved Live Load Distribution Factors for Use in Load Rating of Older Slab and T-Beam Reinforced Concrete Bridges. Purdue University, 2021. http://dx.doi.org/10.5703/1288284317303.

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This report describes a methodology for demand estimate through the improvement of load distribution factors in reinforced concrete flat-slab and T-beam bridges. The proposed distribution factors are supported on three-dimensional (3D) Finite Element (FE) analysis tools. The Conventional Load Rating (CLR) method currently in use by INDOT relies on a two-dimensional (2D) analysis based on beam theory. This approach may overestimate bridge demand as the result of neglecting the presence of parapets and sidewalks present in these bridges. The 3D behavior of a bridge and its response could be bett
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