Version 1
: Received: 11 April 2024 / Approved: 11 April 2024 / Online: 12 April 2024 (08:07:45 CEST)
How to cite:
Zhang, S.; Zhong, D.; Wang, H.; Wu, X.; Ge, N. A New Type of WENO Scheme for Large Eddy Simulation of Turbomachinery Flows. Preprints2024, 2024040830. https://doi.org/10.20944/preprints202404.0830.v1
Zhang, S.; Zhong, D.; Wang, H.; Wu, X.; Ge, N. A New Type of WENO Scheme for Large Eddy Simulation of Turbomachinery Flows. Preprints 2024, 2024040830. https://doi.org/10.20944/preprints202404.0830.v1
Zhang, S.; Zhong, D.; Wang, H.; Wu, X.; Ge, N. A New Type of WENO Scheme for Large Eddy Simulation of Turbomachinery Flows. Preprints2024, 2024040830. https://doi.org/10.20944/preprints202404.0830.v1
APA Style
Zhang, S., Zhong, D., Wang, H., Wu, X., & Ge, N. (2024). A New Type of WENO Scheme for Large Eddy Simulation of Turbomachinery Flows. Preprints. https://doi.org/10.20944/preprints202404.0830.v1
Chicago/Turabian Style
Zhang, S., Xingshuang Wu and Ning Ge. 2024 "A New Type of WENO Scheme for Large Eddy Simulation of Turbomachinery Flows" Preprints. https://doi.org/10.20944/preprints202404.0830.v1
Abstract
To conduct high-precision and high-resolution numerical simulation of complex flow structures in turbomachinery, a high-order finite volume weighted essentially non-oscillatory (WENO) scheme for the large eddy simulation (LES) is improved and embedded into the three-dimensional viscous unsteady CFD solver NUAA-Turbo. Firstly, the spectral characteristics and unsteady convergence of the improved WENO scheme are studied. Compared with the classical WENO scheme, the improved WENO scheme has better dissipation and dispersion characteristics and faster convergence speed. Then, the coefficient CW of the Wall-Adapting Local Eddy-viscosity (WALE) model is calibrated by decaying homogeneous isotropic turbulence (DHIT) test case. Finally, the scheme is applied to conduct high-precision LES calculations of turbulent boundary layer flow, supersonic compression corner flow, and low-pressure turbine cascade separation flow. The numerical simulation results show that this WENO scheme has excellent shock wave capture ability and turbulence resolution and can capture more flow field details with less mesh size, greatly reducing the computational cost and laying a foundation for large-scale engineering application of LES.
Keywords
WENO scheme; turbomachinery flow; NUAA-Turbo; large scale engineering application; LES
Subject
Engineering, Aerospace Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
