Zobrazeno 1 - 10
of 117
pro vyhledávání: '"D. Keith Walters"'
Publikováno v:
Advances in Mechanical Engineering, Vol 5 (2013)
This paper presents an improved method for inclusion of system rotation and streamline curvature effects into existing two-equation eddy-viscosity turbulence models. A new formulation for calculation of the turbulence viscosity coefficient, which is
Externí odkaz:
https://doaj.org/article/9258f15e126448adb614bc9673602001
Autor:
D. Keith Walters
Publikováno v:
Proceeding of 8th Thermal and Fluids Engineering Conference (TFEC).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::abb43722dd96ab34f2059d17920e2f98
https://doi.org/10.1615/tfec2023.tbf.046290
https://doi.org/10.1615/tfec2023.tbf.046290
Publikováno v:
Volume 2: Multiphase Flow (MFTC); Computational Fluid Dynamics (CFDTC); Micro and Nano Fluid Dynamics (MNFDTC).
A new method for implementation of wall-modeled large eddy simulation (WMLES) for use with high-order spectral element methods is introduced. Spectral element methods present unique challenges for wall modeling, specifically related to the applicatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::594bd58bc36aaf0a7f12d95db5638cbb
https://doi.org/10.1115/fedsm2022-87742
https://doi.org/10.1115/fedsm2022-87742
Autor:
Olalekan O. Shobayo, D. Keith Walters
Publikováno v:
Journal of Fluids Engineering. 144
Computational fluid dynamics results for synthetic turbulence generation of freestream turbulence by a proposed statistically targeted forcing (STF) method are presented. The STF method has been previously documented for homogeneous isotropic and ani
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3833e90c4c0cdd7f972b0b5f3aaa35cd
https://doi.org/10.1115/1.4053647
https://doi.org/10.1115/1.4053647
Autor:
Olalekan O. Shobayo, D. Keith Walters
Publikováno v:
Journal of Fluids Engineering. 144
Computational fluid dynamics (CFD) results are presented for synthetic turbulence generation by a proposed statistically targeted forcing (STF) method. The new method seeks to introduce a fluctuating velocity field with a distribution of first and se
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cb3e314b9510e11485e0eb69891de7a3
https://doi.org/10.1115/1.4053551
https://doi.org/10.1115/1.4053551
Publikováno v:
Volume 10: Fluids Engineering.
This study proposes a new variant of the Dynamic Hybrid RANS-LES (DHRL) model. Since the baseline DHRL model uses the ratio of resolved to modeled turbulent stress in RANS-to-LES blending, it was observed that for some types of flows the DHRL model r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d3054d738392a8a434d77b435b6f78b
https://doi.org/10.1115/imece2021-72185
https://doi.org/10.1115/imece2021-72185
Autor:
Olalekan O. Shobayo, D. Keith Walters
Publikováno v:
Volume 1: Aerospace Engineering Division Joint Track; Computational Fluid Dynamics.
Computational fluid dynamics (CFD) results are presented for synthetic turbulence generation of initial conditions for the canonical test case of a temporally-developing turbulent mixing layer (TTML) flow. This numerical study investigates the perfor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cb258dc31bd0c920820b0eefa3ae954d
https://doi.org/10.1115/fedsm2021-65916
https://doi.org/10.1115/fedsm2021-65916
Publikováno v:
Journal of Propulsion and Power. 35:201-212
A Mach 2 supersonic cavity flameholder is simulated using three hybrid Reynolds-averaged Navier–Stokes (RANS)/large-eddy simulation (LES) turbulence modeling approaches. Finite rate chemistry is in...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8554992039479dab31eb12fcbecff320
https://doi.org/10.2514/1.b37092
https://doi.org/10.2514/1.b37092
Publikováno v:
Journal of Fluids Engineering. 143
Computational fluid dynamics (CFD) simulation of flow over a three-dimensional (3D) axisymmetric hill presents a unique set of challenges for turbulence modeling. The flow past the crest of the hill is characterized by boundary layer separation, comp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::030e5f0cb1944883a3f13f58155cd693
https://doi.org/10.1115/1.4051027
https://doi.org/10.1115/1.4051027
Autor:
Olalekan O. Shobayo, D. Keith Walters
Publikováno v:
Journal of Fluids Engineering. 143
Computational fluid dynamics (CFD) results are presented for turbulent flow and heat transfer in a plane channel. This study investigates an idealized fully developed planar channel flow case for which the mean velocity gradient is nonzero only in th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dfac2a4e434bd4ba6ad22f9abdb27f05
https://doi.org/10.1115/1.4051067
https://doi.org/10.1115/1.4051067