2023
DOI: 10.2514/1.j062170
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Novel Approach to Improve Stability and Convergence of Flowfield Solution Processes: Mode Multigrid

Abstract: In the field of computational fluid dynamics, stability and convergence problems are often encountered when solving the governing equation. This paper studies the effect of the mode multigrid on the stability and convergence of iterative algorithms. By further analyzing the mechanism for accelerating the convergence of mode multigrid, a new adaptive mode multigrid (AMMG) is proposed, and an adaptive selection criterion is formulated for the parameters of dynamic modal decomposition, which can accurately identi… Show more

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