Abstract

A 1D bubble expansion problem is solved using standard compressible methods whose numerical solutions are compared with the exact low-Mach solution of the problem. The low Mach solution is proved to provide a very good approximation of the grid-converged compressible solution for a weak expansion and an envelope solution for the strong expansion. This motivates the design of a newly proposed Artificial Compressibility solver which will speed up low-Mach simulations of interest for nuclear safety with respect to standard compressible solvers.

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Published on 11/03/21
Submitted on 11/03/21

Volume 600 - Fluid Dynamics and Transport Phenomena, 2021
DOI: 10.23967/wccm-eccomas.2020.078
Licence: CC BY-NC-SA license

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