Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5011265 | Communications in Nonlinear Science and Numerical Simulation | 2018 | 22 Pages |
Abstract
We propose a new scheme called E-AUSMPWAS (E-AUSMPW modified for all speeds) for both cases of low speeds and high speeds. This scheme adopts the Zha-Bilgen splitting procedure and constructs the mass flux as E-AUSMPW. Also, it improves the construction of the pressure flux for low speeds according to theoretical analyses. In terms of the component pu, the E-AUSMPWAS scheme adopts a different method to make it accord with theory better. Series of numerical experiments show that both E-AUSMPWAS and E-AUSMPW are robust against the shock anomaly and the unphysical 'overheating' phenomenon in the receding problem. Also, the E-AUSMPWAS scheme is with a high resolution at both high speeds and low speeds. These properties suggest that the E-AUSMPWAS scheme is promising to be widely used to accurately and efficiently simulate both simple and complex flows at all speeds.
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Physical Sciences and Engineering
Engineering
Mechanical Engineering
Authors
Feng Qu, Di Sun, Chao Yan,