Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Alain Lerat"'
Autor:
Alain Lerat
Publikováno v:
Journal of Computational Physics
Journal of Computational Physics, Elsevier, 2016, 322, pp.365-386. ⟨10.1016/j.jcp.2016.06.050⟩
Journal of Computational Physics, Elsevier, 2016, 322, pp.365-386. ⟨10.1016/j.jcp.2016.06.050⟩
International audience; Residual-Based Compact (RBC) schemes approximate the 3-D compressible Euler equationswith a 5th- or 7th-order accuracy on a 5 × 5 × 5-point stencil and capture shocks prettywell without correction. For unsteady flows however
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f46c47a8451e0ea17665001a49020235
https://doi.org/10.1016/j.jcp.2016.06.050
https://doi.org/10.1016/j.jcp.2016.06.050
Autor:
Alain Lerat
Publikováno v:
Journal of Computational Physics. 272:629-643
An exact expression of steady discrete shocks was recently obtained by the author in [9] for a class of residual-based compact schemes (RBC) applied to the inviscid Burgers equation in a finite domain. Following the same lines, the analysis is extend
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2e8cb122804718353694d36a686a976
https://doi.org/10.1016/j.jcp.2014.04.045
https://doi.org/10.1016/j.jcp.2014.04.045
Publikováno v:
Journal of Computational Physics. 252:142-162
The wave propagation (spectral) properties of high-order Residual-Based compact (RBC) discretizations are analyzed to obtain information on the evolution of the Fourier modes supported on a grid of finite size. For these genuinely multidimensional an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ae080a0eb855e858d36ca03696d4c0a5
https://doi.org/10.1016/j.jcp.2013.06.005
https://doi.org/10.1016/j.jcp.2013.06.005
Autor:
Alain Lerat
Publikováno v:
Journal of Computational Physics. 252:350-364
Exact expressions of steady discrete shocks are found for a class of dissipative compact schemes approximating a one-dimensional nonlinear hyperbolic problem with a 3rd, 5th and 7th order of accuracy. A discrete solution is given explicitly for the i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c47888ddefd0b5577093c85da5c3215c
https://doi.org/10.1016/j.jcp.2013.06.030
https://doi.org/10.1016/j.jcp.2013.06.030
Publikováno v:
Computers & Fluids. 61:21-30
The present study consists in an analysis of the DNS database of a flow overcoming a transitional separation induced by an adverse pressure gradient on a flat plate under a curved upper wall. This study takes place in the context of improving RANS mo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ef75332b85c69758d118b4beac18b52
https://doi.org/10.1016/j.compfluid.2011.07.011
https://doi.org/10.1016/j.compfluid.2011.07.011
Publikováno v:
Computers & Fluids. 61:31-38
Residual-Based Compact (RBC) schemes are reviewed and applied to realistic compressible flow problems. The principle and advantages of high-order RBC schemes are first presented. Then, an implementation in the elsA code of the 3rd-order RBC scheme is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b99621315071af83b9c3277821611cfd
https://doi.org/10.1016/j.compfluid.2011.07.017
https://doi.org/10.1016/j.compfluid.2011.07.017
Publikováno v:
Journal of Computational Physics
Journal of Computational Physics, Elsevier, 2011, pp.1-15. ⟨10.1016/j.jcp.2011.01.032⟩
Journal of Computational Physics, Elsevier, 2011, pp.1-15. ⟨10.1016/j.jcp.2011.01.032⟩
International audience; A residual-based (RB) scheme relies on the vanishing of residual at the steady-state to design a transient first-order dissipation, which becomes high-order at steady-state. Initially designed within a finite-difference framew
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cb97486093f3280dc4c566c9b2bb2d59
https://doi.org/10.1016/j.jcp.2011.01.032
https://doi.org/10.1016/j.jcp.2011.01.032
Autor:
Alain Lerat, Christophe Eric Corre
Publikováno v:
Computers and Fluids
Computers and Fluids, Elsevier, 2011, 41 (1), pp.94-102. ⟨10.1016/j.compfluid.2010.09.024⟩
Computers and Fluids, Elsevier, 2011, 41 (1), pp.94-102. ⟨10.1016/j.compfluid.2010.09.024⟩
International audience; A new fourth-order dissipative scheme on a compact 3 × 3 stencil is presented for solving 2D hyperbolic problems. It belongs to the family of previously developed residual-based compact schemes and can be considered as optima
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bff02e784a522ca3c163bc05a147bf15
https://doi.org/10.1016/j.compfluid.2010.09.024
https://doi.org/10.1016/j.compfluid.2010.09.024
Publikováno v:
AIAA Journal. 46:1614-1623
We recently proved that a dissipative residual-based scheme of second-order accuracy is vorticity-preserving for the compressible Euler equations. In the present paper, this scheme is extended to curvilinear grids and applied to the computation of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4aae49adb012705346053439cd0f3b26
https://doi.org/10.2514/1.33719
https://doi.org/10.2514/1.33719
Publikováno v:
Computers & Fluids. 36:1567-1582
A residual-based compact scheme, previously developed to compute d-dimensional inviscid compressible flows with third-order accuracy on a 3d-point stencil [Lerat A, Corre C. Residual-based compact schemes for multidimensional hyperbolic system of con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c9d13c60c657b74f6d704c68d3975114
https://doi.org/10.1016/j.compfluid.2007.03.010
https://doi.org/10.1016/j.compfluid.2007.03.010