Split time-integration for low Mach number compressible flows
β Scribed by Lange, H. C. de
- Publisher
- John Wiley and Sons
- Year
- 2004
- Tongue
- English
- Weight
- 108 KB
- Volume
- 20
- Category
- Article
- ISSN
- 1069-8299
- DOI
- 10.1002/cnm.687
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π SIMILAR VOLUMES
Based upon the operator-splitting method designed by the authors to solve the Navier-Stokes equations with variable density and viscosity, a segregated time-marching solution scheme is proposed for solving the low-Machnumber flow model with the acoustic waves being filtered out. This solution scheme
In calculating low Mach number flows one faces the stiffness problem in two different facets: β’ the applicable time steps become very small β’ the constants of the cancellation errors become very large (1/Ξ³ M 2 ). Usually the first point receives attention. Here we want to concentrate on the cancel
## Abstract Computation of the acoustic disturbances generated by unsteady lowβspeed flow fields including vortices and shear layers is considered. The equations governing the generation and propagation of acoustic fluctuations are derived from a twoβstep acoustic/viscous splitting technique. An op
## Asymptotic Expansions and Numerical Methods for Compressible and Low Mach Number Fluid Flow The results of a formal asymptotic low Mach number analysis of the Euler equations of gas dynamics are used to extend the validity of a numerical method from the simulation of compressible inviscid flow