Zobrazeno 1 - 10
of 52
pro vyhledávání: '"Joseph Falcovitz"'
Autor:
Matania Ben-Artzi, Joseph Falcovitz
Numerical simulation of compressible, inviscid time-dependent flow is a major branch of computational fluid dynamics. Its primary goal is to obtain accurate representation of the time evolution of complex flow patterns, involving interactions of shoc
Publikováno v:
30th International Symposium on Shock Waves 1 ISBN: 9783319462110
Consider a shock tube configuration with a sharp transition between a wide driver segment and a much narrower driven segment. The flow commencing upon the rupture of the diaphragm that separates the two segments is studied both numerically and by ana
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f8c454c4cd1d954d9577e80e867c115f
https://doi.org/10.1007/978-3-319-46213-4_116
https://doi.org/10.1007/978-3-319-46213-4_116
Publikováno v:
30th International Symposium on Shock Waves 1 ISBN: 9783319462110
The current paper discusses the shock standoff distance over spheres in unsteady flows. In a ballistic range, spherical projectiles were launched into atmospheric air for wide transonic ranges of projectile Mach numbers. We visualized shock standoff
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::409a9a64ce31e2de01c48feb943612ae
https://doi.org/10.1007/978-3-319-46213-4_45
https://doi.org/10.1007/978-3-319-46213-4_45
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering. 226:123-130
We consider a classical shock tube with Helium-filled driver section, and a driven section filled with a He– Ar gaseous mixture of continuously varying composition. We simulate a shock tube experiment, where the driven section composition starts ou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::53d4e42d259ff7ff01ae4c26795966f0
https://doi.org/10.1177/0954410011408386
https://doi.org/10.1177/0954410011408386
Autor:
Joseph Falcovitz, Gabi Luttwak
Publikováno v:
Journal of Energetic Materials. 28:279-302
The staggered mesh Godunov-SMG scheme for Lagrangian and Arbitrary Lagrangian Eulerian (ALE) hydrodynamics has several potential advantages for applications involving reactive flow simulations arising in the initiation and propagation of detonation.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aca9f542e1d5e4b92da5fe0a7a40e3fe
https://doi.org/10.1080/07370652.2010.505821
https://doi.org/10.1080/07370652.2010.505821
Autor:
Joseph Falcovitz, Dan Igra
Publikováno v:
Shock Waves. 20:441-444
This paper describes a numerical simulation of bow shock formation ahead of a sphere at steady supersonic flow in the Mach number range of 1.025–1.20. Turbulent viscous flow results are presented using the Spalart–Allmaras turbulence model. The p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::99dc3c4a8b5e73d80ff860f855bc212b
https://doi.org/10.1007/s00193-010-0273-z
https://doi.org/10.1007/s00193-010-0273-z
Autor:
Gabi Luttwak, Joseph Falcovitz
Publikováno v:
International Journal for Numerical Methods in Fluids. 65:1365-1375
Slope or flux limiters are used in high-order methods to maintain monotonicity of the solution near discontinuities. For vectors or tensors, these limiters are applied separately to each component. Such a procedure is inherently frame-dependent and c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ee468c5e447cf1cb94cdf23d49f586f
https://doi.org/10.1002/fld.2367
https://doi.org/10.1002/fld.2367
Publikováno v:
Discrete and Continuous Dynamical Systems. 23:1-27
This paper deals with the convergence of the second-order GRP (Generalized Riemann Problem) numerical scheme to the entropy solution for scalar conservation laws with strictly convex fluxes. The approximate profiles at each time step are linear in ea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6206a000ce413683979b91633038074f
https://doi.org/10.3934/dcds.2009.23.1
https://doi.org/10.3934/dcds.2009.23.1
Autor:
Joseph Falcovitz, A. Birman
Publikováno v:
Journal of Computational Physics. 222:131-154
The GRP (generalized Riemann problem) scheme, originally conceived for gasdynamics, is reformulated for the numerical integration of the shallow water equations in channels of rectangular cross-section, variable width and bed profile, including a fri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f2ba82175d9b8872c6d85c60d1945a91
https://doi.org/10.1016/j.jcp.2006.07.008
https://doi.org/10.1016/j.jcp.2006.07.008
Publikováno v:
Journal of Fluids Engineering. 125:510-519
While a lot of attention was given to shock wave reflections from wedges during the past four decades, only little work was published regarding the similar case of blast wave reflection from wedges. In the present paper this subject is studied experi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ff7885f5096347581c5377d524f8ce41
https://doi.org/10.1115/1.1567310
https://doi.org/10.1115/1.1567310