Zobrazeno 1 - 10
of 779
pro vyhledávání: '"Hybrid RANS-LES"'
Publikováno v:
Fluids, Vol 9, Iss 11, p 246 (2024)
The Improved Delayed Detached-Eddy Simulation (IDDES) is a modification of the original Detached-Eddy Simulation (DES) design to incorporate Wall Modeled Large Eddy Simulation (WMLES) capabilities and to extend the class of flows suitable for this me
Externí odkaz:
https://doaj.org/article/41dd04bd550e4ff1978d335d7d285c56
Autor:
Apte, Dhruv Girish
Cavitation is characterized by the formation of vapor bubbles when the pressure in a working fluid drops sharply below the vapor pressure. These bubbles, upon exiting the low-pressure region burst emanating tremendous amounts of energy. Unsteady cavi
Externí odkaz:
https://hdl.handle.net/10919/119366
Publikováno v:
Energies, Vol 17, Iss 17, p 4480 (2024)
Effusion cooling is often regarded as one of the critical techniques to protect solid surfaces from exposure to extremely hot environments, such as inside a combustion chamber where temperature can well exceed the metal melting point. Designing such
Externí odkaz:
https://doaj.org/article/646d21e729b945878bcd6328376240c6
Publikováno v:
Results in Engineering, Vol 21, Iss , Pp 101679- (2024)
In the present article, we introduce a local hybrid RANS/LES turbulence model, the Flow-based Stress-Blended Eddy Simulation (Fb-SBES). The methodology is applied to urban flow simulations in atmospheric boundary layer. The blending from RANS to LES
Externí odkaz:
https://doaj.org/article/018b8d91a3524349a3edd5ce4699a2d0
Publikováno v:
Engineering Applications of Computational Fluid Mechanics, Vol 16, Iss 1, Pp 279-295 (2022)
Hybrid RANS-LES is a promising method for analyzing the complex flow structure in turbomachinery due to its excellent compromise between accuracy and computational cost. However, it is challenging to employ the existing URANS and LES grid resolution
Externí odkaz:
https://doaj.org/article/240cd7b1c23c4a7797f2283c0777c8d2
Autor:
Schiestel, Roland, Chaouat, Bruno
Publikováno v:
Comptes Rendus. Mécanique, Vol , Iss , Pp 1-29 (2022)
This paper is a short retrospective review of the predictive methods of turbulent flows in Computational Fluid Dynamics over the last 50 years since the first development of computers. The different schools of turbulence modeling are presented with t
Externí odkaz:
https://doaj.org/article/43480819b8644a6d897a82201e19fdf1
Autor:
Adeyemi Fagbade, Stefan Heinz
Publikováno v:
Applied Sciences, Vol 14, Iss 7, p 2705 (2024)
Reynolds-averaged Navier–Stokes (RANS), large eddy simulation (LES), and hybrid RANS-LES, first of all wall-modeled LES (WMLES) and detached eddy simulation (DES) methods, are regularly applied for wall-bounded turbulent flow simulations. Their cha
Externí odkaz:
https://doaj.org/article/9b9a0c571525495487d8b602843be43b
Autor:
Adeyemi Fagbade, Stefan Heinz
Publikováno v:
Fluids, Vol 9, Iss 1, p 22 (2024)
The usual concept of simulation methods for turbulent flows is to impose a certain (partial) flow resolution. This concept becomes problematic away from limit regimes of no or an almost complete flow resolution: discrepancies between the imposed and
Externí odkaz:
https://doaj.org/article/f9ffa3dff1f84d919ab5821144a69aaf
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