Bibliografías temáticas / Schéma Dissipatif

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Literatura académica sobre el tema "Schéma Dissipatif"

Autor: Grafiati
Publicado: 30 de noviembre de 2024
Última modificación: 31 de julio de 2025

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Artículos de revistas sobre el tema "Schéma Dissipatif"

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Després, Bruno, and Frédéric Lagoutière. "Un schéma non linéaire anti-dissipatif pour l'équation d'advection linéaire." Comptes Rendus de l'Académie des Sciences - Series I - Mathematics 328, no. 10 (1999): 939–43. http://dx.doi.org/10.1016/s0764-4442(99)80301-2.

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Mamouri, Saïd, and Adnan Ibrahimbegovic. "Schéma dissipatif HHT d'intégration temporelle pour un modèle de poutre en grandes rotations." Revue Européenne des Éléments Finis 10, no. 5 (2001): 607–23. http://dx.doi.org/10.1080/12506559.2001.9737562.

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Huang, Shiyi, and Zhixue Li. "Optimization and Application of Coal Pillar in Fully Mechanized Mining Face based on Energy Analysis." International Journal of Energy 3, no. 3 (2023): 47–51. http://dx.doi.org/10.54097/ije.v3i3.011.

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Based on the theory of energy dissipation, a numerical model of goaf excavation was established by FLAC3D based on the backflow channel of Heilong Coal Industry 2202. The dissipative energy distribution characteristics of coal pillars with different widths were studied, and the dissipative energy evolution law of surrounding rock of goaf roadway was analyzed. With the increase of the width of coal pillar, the width of elastic core zone is positively correlated with the bearing capacity. The peak value of dissipated energy density decreases with the increase of the width of coal pillar, and the
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Chen, Xiaowei, Mingzhan Song, and Songhe Song. "A Fourth Order Energy Dissipative Scheme for a Traffic Flow Model." Mathematics 8, no. 8 (2020): 1238. http://dx.doi.org/10.3390/math8081238.

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We propose, analyze and numerically validate a new energy dissipative scheme for the Ginzburg–Landau equation by using the invariant energy quadratization approach. First, the Ginzburg–Landau equation is transformed into an equivalent formulation which possesses the quadratic energy dissipation law. After the space-discretization of the Fourier pseudo-spectral method, the semi-discrete system is proved to be energy dissipative. Using diagonally implicit Runge–Kutta scheme, the semi-discrete system is integrated in the time direction. Then the presented full-discrete scheme preserves the energy
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5

Burkhardt, Ulrike, and Erich Becker. "A Consistent Diffusion–Dissipation Parameterization in the ECHAM Climate Model." Monthly Weather Review 134, no. 4 (2006): 1194–204. http://dx.doi.org/10.1175/mwr3112.1.

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Abstract The diffusion–dissipation parameterizations usually adopted in GCMs are not physically consistent. Horizontal momentum diffusion, applied in the form of a hyperdiffusion, does not conserve angular momentum and the associated dissipative heating is commonly ignored. Dissipative heating associated with vertical momentum diffusion is often included, but in a way that is inconsistent with the second law of thermodynamics. New, physically consistent, dissipative heating schemes due to horizontal diffusion (Becker) and vertical diffusion (Becker, and Boville and Bretherton) have been develo
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6

HANSEN, JAKOB, ALEXEI KHOKHLOV, and IGOR NOVIKOV. "PROPERTIES OF FOUR NUMERICAL SCHEMES APPLIED TO A NONLINEAR SCALAR WAVE EQUATION WITH A GR-TYPE NONLINEARITY." International Journal of Modern Physics D 13, no. 05 (2004): 961–82. http://dx.doi.org/10.1142/s021827180400502x.

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We study stability, dispersion and dissipation properties of four numerical schemes (Itera-tive Crank–Nicolson, 3rd and 4th order Runge–Kutta and Courant–Fredrichs–Levy Nonlinear). By use of a Von Neumann analysis we study the schemes applied to a scalar linear wave equation as well as a scalar nonlinear wave equation with a type of nonlinearity present in GR-equations. Numerical testing is done to verify analytic results. We find that the method of lines (MOL) schemes are the most dispersive and dissipative schemes. The Courant–Fredrichs–Levy Nonlinear (CFLN) scheme is most accurate and least
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7

Li, Guodong, Haifeng Zhang, Xingnan Li, Lihao Guo, Yanyan Gao, and Dandan Cai. "Numerical Simulation of Stepped Spillways with Front Step Deformation." Mathematical Problems in Engineering 2021 (March 29, 2021): 1–15. http://dx.doi.org/10.1155/2021/7079606.

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In order to solve the flood discharge problem of both small- and medium-sized warping dams in the Loess Plateau, a stepped spillway scheme, based on an ecological bag, to achieve full-section water flow and energy dissipation has been proposed in this paper. The hydraulic and energy dissipation characteristics of a stepped spillway layout scheme were studied using 3D numerical simulation. As the height of the dams is low and the spillways are short, the research has shown that the traditional single-step layout scheme leads to a low overall energy dissipation rate due to the small amount of en
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8

Lin, F. B., and F. Sotiropoulos. "Assessment of Artificial Dissipation Models for Three-Dimensional Incompressible Flow Solutions." Journal of Fluids Engineering 119, no. 2 (1997): 331–40. http://dx.doi.org/10.1115/1.2819138.

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Various approaches for constructing artificial dissipation terms for three-dimensional artificial compressibility algorithms are presented and evaluated. Two, second-order accurate, central-differencing schemes, with explicitly added scalar and matrix-valued fourth-difference artificial dissipation, respectively, and a third-order accurate flux-difference splitting upwind scheme are implemented in a multigrid time-stepping procedure and applied to calculate laminar flow through a strongly curved duct. Extensive grid-refinement studies are carried out to investigate the grid sensitivity of each
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9

Zhang, Yang, Laiping Zhang, Xin He, and Xiaogang Deng. "An Improved Second-Order Finite-Volume Algorithm for Detached-Eddy Simulation Based on Hybrid Grids." Communications in Computational Physics 20, no. 2 (2016): 459–85. http://dx.doi.org/10.4208/cicp.190915.240216a.

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AbstractA hybrid grid based second-order finite volume algorithm has been developed for Detached-Eddy Simulation (DES) of turbulent flows. To alleviate the effect caused by the numerical dissipation of the commonly used second order upwind schemes in implementing DES with unstructured computational fluid dynamics (CFD) algorithms, an improved second-order hybrid scheme is established through modifying the dissipation term of the standard Roe's flux-difference splitting scheme and the numerical dissipation of the scheme can be self-adapted according to the DES flow field information. By Fourier
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Zhao, Peng, and Yu Chuan Bai. "Study on Hydraulic Characteristics and Optimization of Siphon Channel with Two Inlets in Drydock." Applied Mechanics and Materials 638-640 (September 2014): 1285–92. http://dx.doi.org/10.4028/www.scientific.net/amm.638-640.1285.

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Compared with the siphon channel with one inlet, the siphon channel with two inlets has some problems such as low efficiency of flooding. Combining with the model test of siphon channel with two inlets in a drydock, three-dimensional numerical model was built to study the hydraulic characteristics of siphon channel system. The reliability of numerical model was confirmed by comparing the calculated value and measured value of hump pressure and flooding rate. Results of turbulent kinetic energy and dissipation rate indicate that flow kinetic energy is mainly dissipated by the friction and its i
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Tesis sobre el tema "Schéma Dissipatif"

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Megdich, Nadia. "Méthodes anti-dissipatives pour les équations Hamilton Jacobi Bellman." Paris 6, 2008. http://www.theses.fr/2008PA066073.

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On étudie la convergence d'un schéma anti-dissipatif, l'UltraBee, pour les équations Hamilton Jacobi Bellman en dimension 1. Deux méthodes de résolution utilisant ce schéma sont proposées. La première combine l'UltraBee à une adaptation de grille, la deuxième utilise un stockage creux. Cette dernière est appliquée au problème de la rentrée atmosphérique. Enfin, quelques extensions théoriques sont données.
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2

Bensaid, Bilel. "Analyse et développement de nouveaux optimiseurs en Machine Learning." Electronic Thesis or Diss., Bordeaux, 2024. http://www.theses.fr/2024BORD0218.

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Ces dernières années, l’intelligence artificielle (IA) est confrontée à deux défis majeurs (parmi d’autres), à savoir l’explicabilité et la frugalité, dans un contexte d’intégration de l’IA dans des systèmes critiques ou embarqués et de raréfaction des ressources. Le défi est d’autant plus conséquent que les modèles proposés apparaissent commes des boîtes noires étant donné le nombre faramineux d’hyperparamètres à régler (véritable savoir-faire) pour les faire fonctionner. Parmi ces paramètres, l’optimiseur ainsi que les réglages qui lui sont associés ont un rôle critique dans la bonne mise en
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Mahéo, Laurent. "Etude des effets dissipatifs de différents schémas d'intégration temporelle en calcul dynamique par éléments finis." Phd thesis, Université de Bretagne Sud, 2006. http://tel.archives-ouvertes.fr/tel-00139112.

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Cette étude aborde différents schémas d'intégration temporelle en calcul dynamique, et leur capacité à dissiper les hautes fréquences numériques introduites par les discrétisation temporelle et spatiale. La discrétisation temporelle d'un problème de dynamique peut être réalisée par la Méthode des Différences Finies ou celle des Eléments Finis et plus particulièrement la méthode de Galerkin - discontinue. Les résultats sont alors perturbés par des oscillations parasites d'origine purement numérique et issues des discrétisations temporelle et spatiale. Des méthodes permettent de les amortir en d
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Mahéo, Laurent. "Étude des effets dissipatifs de différents schémas d'intégration temporelle en calcul dynamique par éléments finis." Lorient, 2006. http://www.theses.fr/2006LORIS082.

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Cette étude aborde différents schémas d’intégration temporelle utilisés en calcul dynamique, et leur capacité à dissiper les hautes fréquences numériques introduites par les discrétisation temporelle et spatiale. La discrétisation temporelle d’un problème de dynamique peut être réalisée par la Méthode des Différences Finies (MDF) ou par la Méthode des Eléments Finis (MEF) et plus particulièrement la méthode de Galerkin-Discontinu (DG). Les résultats sont alors perturbés par des oscillations parasites d’origine purement numérique et issues des discrétisations temporelle et spatiale. Des méthode
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5

Lee, Dongwook. "An unsplit staggered mesh scheme for multidimensional magnetohydrodynamics a staggered dissipation-control differencing algorithm /." College Park, Md. : University of Maryland, 2006. http://hdl.handle.net/1903/3842.

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Thesis (Ph. D.) -- University of Maryland, College Park, 2006.<br>Thesis research directed by: Applied Mathematics and Scientific Computation Program. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
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Fiebach, André [Verfasser]. "A dissipative finite volume scheme for reaction-diffusion systems in heterogeneous materials / André Fiebach." Berlin : Freie Universität Berlin, 2014. http://d-nb.info/1057869732/34.

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Huart, Robin. "Simulation numérique d'écoulements magnétohydrodynamiques par des schémas distribuant le résidu." Thesis, Bordeaux 1, 2012. http://www.theses.fr/2012BOR14480/document.

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Au cours de ce travail, nous nous sommes attaché à la résolution numérique des équations de la Magnétohydrodynamique (MHD) auxquelles s'ajoute une loi hyperbolique de transport des erreurs de divergence.La première étape consista à symétriser le nouveau système de la MHD idéale afin d'en étudier le système propre, ce qui fut l'occasion de rappeler le rôle de l'entropie au niveau de ce calcul comme à celui de l'inégalité de Clausius-Duhem. La suite de cette thèse eut pour objectif la résolution de ces équations idéales à l'aide de schémas distribuant le résidu (notés RD). Les quatre principaux
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8

Broussely, Marc. "Réduction de modèles thermiques par la théorie des réseaux, application à la surveillance d'une machine asynchrone par couplage d'un modèle thermique réduit avec un schéma équivalent électrique." Poitiers, 2000. http://www.theses.fr/2000POIT2320.

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Une machine electrique est le siege de dissipations et une trop forte elevation de temperature peut entrainer un endommagement irreversible. Notre objectif est de montrer la faisabilite d'un systeme numerique de surveillance continue des temperatures et des pertes d'une machine electrique fonctionnant en temps reel. Une machine asynchrone de 5,5 kw, 4 poles a ete assemblee et equipee d'une soixantaine de thermistances, y compris au rotor, puis montee sur un banc d'essais instrumente. Un modele thermique nodal detaille d'environ 1200 nuds a ete construit suivant les plans de la machine. Le mode
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9

Marié, Simon. "Etude de la méthode Boltzmann sur Réseau pour les simulations en aéroacoustique." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2008. http://tel.archives-ouvertes.fr/tel-00311293.

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Ce travail de thèse s'inscrit dans une problématique visant à étudier numériquement le bruit d'origine aérodynamique généré par les écoulements turbulents autour des véhicules en utilisant la méthode Boltzmann sur Réseau (LBM). Les objectifs de cette thèse sont l'étude des capacités aéroacoustiques de la LBM ainsi que l'élaboration d'un code de calcul tridimensionnel et parallèle.<br />Dans un premier temps, les élements historiques et théoriques de la LBM sont présentés ainsi que le développement permettant de passer de l'équation de Boltzmann aux équations de Navier-Stokes. La construction d
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10

Azim, Riasat. "Low-Storage Hybrid MacCormack-type Schemes with High Order Temporal Accuracy for Computational Aeroacoustics." University of Toledo / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1515720270119389.

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Libros sobre el tema "Schéma Dissipatif"

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Brodersen, Olaf. Untersuchung einer Matrix-Dissipation in einem Zelleneckpunkt-Finite-Volumen-Schema zur Lösung der Navier-Stokes-Gleichungen. Deutsche Forschungsanstalt für Luft- und Raumfahrt, 1992.

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Yeffet, Amir. A non-dissipative staggered fourth-order accurate explicit finite difference scheme for the time-domain Maxwell's equations. National Aeronautics and Space Administration, Langley Research Center, 1999.

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Yeffet, Amir. A non-dissipative staggered fourth-order accurate explicit finite difference scheme for the time-domain Maxwell's equations. National Aeronautics and Space Administration, Langley Research Center, 1999.

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Yeffet, Amir. A non-dissipative staggered fourth-order accurate explicit finite difference scheme for the time-domain Maxwell's equations. National Aeronautics and Space Administration, Langley Research Center, 1999.

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Yeffet, Amir. A non-dissipative staggered fourth-order accurate explicit finite difference scheme for the time-domain Maxwell's equations. National Aeronautics and Space Administration, Langley Research Center, 1999.

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Yeffet, Amir. A non-dissipative staggered fourth-order accurate explicit finite difference scheme for the time-domain Maxwell's equations. National Aeronautics and Space Administration, Langley Research Center, 1999.

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Capítulos de libros sobre el tema "Schéma Dissipatif"

1

Yang, Yan. "Hybrid Scheme for Compressible MHD Turbulence." In Energy Transfer and Dissipation in Plasma Turbulence. Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-8149-2_3.

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Wen, Chih-Yung, Yazhong Jiang, and Lisong Shi. "Non-dissipative Core Scheme of CESE Method." In Engineering Applications of Computational Methods. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-0876-9_2.

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AbstractThis chapter is devoted to demonstrating the basic ideas in the CESE method. These ideas include the adoption of a space–time integral form of governing equations as the starting point of scheme construction, as well as the introduction of conservation element (CE) and solution element (SE) in the discretization of space–time domain. Then, the non-dissipative core scheme of the CESE method will be presented in detail.
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Wen, Chih-Yung, Yazhong Jiang, and Lisong Shi. "CESE Schemes with Numerical Dissipation." In Engineering Applications of Computational Methods. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-0876-9_3.

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AbstractAs depicted in Chap. 2, the interface between the two sub-CEs (CD in Fig. 2.7), belongs to the SE of (j, n). The flux FC needs to be calculated through the Taylor expansion at point (j, n) toward the inverse time direction. As a result, the a scheme is reversible. This violates the second law of thermodynamics. Thus, the non-dissipative core suffers from the unphysical oscillations for practical applications.
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4

Poluru, Venkata Reddy. "A Low Dissipative Scheme for Hyperbolic Conservation Laws." In Lecture Notes in Mechanical Engineering. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-9956-9_57.

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Fang, Yuheng, Jianyi Shi, Zhuo Sun, Song Kong, and Sese Wang. "Energy Dissipation Balance Scheme in Dynamic Ad Hoc Networks." In Proceedings of the 2015 International Conference on Communications, Signal Processing, and Systems. Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-49831-6_8.

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Pelanti, M., L. Quartapelle, and L. Vigevano. "Low Dissipation Entropy Fix for Positivity Preserving Roe’s Scheme." In Godunov Methods. Springer US, 2001. http://dx.doi.org/10.1007/978-1-4615-0663-8_69.

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Babik, F., R. Herbin, W. Kheriji, and J. C. Latché. "Discretization of the viscous dissipation term with the MAC scheme." In Finite Volumes for Complex Applications VI Problems & Perspectives. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-20671-9_60.

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Conde Martín, S., and J. C. García Orden. "Energy-Consistent Integration Scheme for Multi-body Systems with Dissipation." In New Trends in Mechanism and Machine Science. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-09411-3_44.

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Guo-yan, Zhao, and Sun Ming-bo. "Robust and Low-Dissipation Explicit Formulation of Improved Adaptive WCNS Scheme." In 31st International Symposium on Shock Waves 1. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-91020-8_144.

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Porubov, A. V., D. Bouche, and G. Bonnaud. "Compensation of the Scheme Dispersion and Dissipation by Artificial Non-linear Additions." In Transactions on Computational Science VII. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-11389-5_7.

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Actas de conferencias sobre el tema "Schéma Dissipatif"

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Hou, Daizheng, Yanfei Zhang, and Yafu Zhou. "A Novel Heat Dissipation Optimization Design Scheme of Printed Circuit Board." In 2024 3rd International Conference on Energy, Power and Electrical Technology (ICEPET). IEEE, 2024. http://dx.doi.org/10.1109/icepet61938.2024.10627435.

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Tian, Cheng, Song Fu, and Siya Jiang. "Numerical Dissipation Effects on Detached Eddy Simulation of Turbomachinery Flows." In GPPS Xi'an21. GPPS, 2022. http://dx.doi.org/10.33737/gpps21-tc-74.

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Detached eddy simulation (DES) is a high-resolution method for predicting complex unsteady flows in turbomachinery. Recent researches have shown that in DES the numerical dissipation from the spatial discretization scheme should be limited to a reasonable extent. Through the test-case of decaying isotropic turbulence, the impact of the Roe scheme is assessed with three reconstruction approaches: the 3rd-order MUSCL, the 5th-order WENO, and the 4th-order minimized dispersion and controllable dissipation (MDCD) scheme. From the results, however, even with the least dissipative 4th-order MDCD sch
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Kim, Dehee, and Jang Hyuk Kwon. "A Low Dissipative and Dispersive Scheme with a High Order WENO Dissipation for Unsteady Flow Analyses." In 34th AIAA Fluid Dynamics Conference and Exhibit. American Institute of Aeronautics and Astronautics, 2004. http://dx.doi.org/10.2514/6.2004-2705.

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Su, Xinrong, Satoru Yamamoto, and Xin Yuan. "On the Accurate Prediction of Tip Vortex: Effect of Numerical Schemes." In ASME Turbo Expo 2013: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gt2013-94660.

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This work is conducted towards the accurate prediction of compressor tip vortex. Accurate computation of highly vortical flow is affected by many parameters, such as numerical scheme and turbulence model. In this work the effect of numerical scheme is studied using mesh refinement study and comparison of numerical results from central scheme and a newly developed high order upwind scheme. Behaviors of numerical methods in the tip vortex region are also theoretically and numerically analyzed. It is found the computed tip vortex is significantly affected by mesh resolution and numerical dissipat
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Christensen, Adam, and Samuel Graham. "Heat Dissipation in GaN Power Semiconductor Devices." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-61525.

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In this work, a numerical study is presented of the impact of growth substrates on thermal dissipation in GaN devices. Substrates included in this study are sapphire, SiC, GaN, ZnO, and LiGaO2. Based on a model high power HFET device with the rear side held at a fixed temperature, the maximum junction temperature in the devices were calculated using finite element analysis and compared. Both interface resistance and the effects of dislocations in the GaN layer were accounted for. Results show that state of the art devices dissipating 10 W/mm of power must be fabricated on high thermal conducti
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Bahrainian, Seyed Saied. "Effect of Dissipative Terms on the Quality of Two and Three-Dimensional Euler Flow Solutions." In ASME 2008 Fluids Engineering Division Summer Meeting collocated with the Heat Transfer, Energy Sustainability, and 3rd Energy Nanotechnology Conferences. ASMEDC, 2008. http://dx.doi.org/10.1115/fedsm2008-55221.

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The Euler equations are a set of non-dissipative hyperbolic conservation laws that can become unstable near regions of severe pressure variation. To prevent oscillations near shockwaves, these equations require artificial dissipation terms to be added to the discretized equations. A combination of first-order and third-order dissipative terms control the stability of the flow solutions. The assigned magnitude of these dissipative terms can have a direct effect on the quality of the flow solution. To examine these effects, subsonic and transonic solutions of the Euler equations for a flow passe
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Jordan, Stephen A. "The Effects of the Boundary Stencils on the Field Spatial Resolution When Using Compact Finite Differences." In ASME 2006 2nd Joint U.S.-European Fluids Engineering Summer Meeting Collocated With the 14th International Conference on Nuclear Engineering. ASMEDC, 2006. http://dx.doi.org/10.1115/fedsm2006-98049.

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When establishing the spatial resolution character of a composite compact finite differencing template for high-order field solutions, the stencils selected at non-periodic boundaries are commonly treated independent of the interior scheme. This position quantifies a false influence of the boundary scheme on the resultant interior dispersive and dissipative consequences of the compound template. Of the three ingredients inherent in the composite template, only its numerical accuracy and global stability have been properly treated in a coupled fashion. Herein, we present a companion means for q
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Pinho, Pedro V., André G. Primo, Natália C. Carvalho, et al. "Quadrature-Resolved Dissipative Optomechanical Measurement." In CLEO: Fundamental Science. Optica Publishing Group, 2023. http://dx.doi.org/10.1364/cleo_fs.2023.fth1b.2.

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Parida, Pritish R., Srinath V. Ekkad, and Khai Ngo. "Novel PCM and Jet Impingement Based Cooling Scheme for High Density Transient Heat Loads." In 2010 14th International Heat Transfer Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ihtc14-22841.

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Breakthroughs in the recent cutting-edge technologies have become increasingly dependent on the ability to safely dissipate large amount of heat from small areas. Improvements in cooling techniques are therefore required to avoid unacceptable temperature rise and at the same time maintain high efficiency. Jet impingement is one such cooling scheme which has been widely used to dissipate transient and steady concentrated heat loads. With constantly increasing transient cooling needs, conventional pin-fin cooling and conventional jet impingement cooling are not meeting the requirements. Consider
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Primo, André G., Pedro V. Pinho, Natália C. Carvalho, et al. "Homodyne Detection of Dissipative Optomechanical Interactions." In Latin America Optics and Photonics Conference. Optica Publishing Group, 2022. http://dx.doi.org/10.1364/laop.2022.m4d.6.

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We present and validate a novel route to directly probe the dissipative optomechanical coupling in a balanced homodyne detection scheme. The ratio between dissipative and dispersive coupling is determined as G κ e / G ω ≈ − 0.007 ± 0.001 .
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