Hybrid Explicit-Implicit, Unconditionally Stable Scheme for Unsteady Compressible Flows
β Scribed by Men'Shov, Igor; Nakamura, Yoshiaki
- Book ID
- 120581366
- Publisher
- American Institute of Aeronautics and Astronautics
- Year
- 2004
- Tongue
- English
- Weight
- 369 KB
- Volume
- 42
- Category
- Article
- ISSN
- 0001-1452
- DOI
- 10.2514/1.9109
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π SIMILAR VOLUMES
A hybrid implicit-explicit scheme is developed for Eulerian hydrodynamics. The hybridization is a continuous switch and operates on each characteristic field separately. The explicit scheme is a version of the second-order Godunov scheme; the implicit method is only firstorder accurate in time but l
Peyret (1 Fluid Mech., 7 8 , 4 9 4 3 (1976)) and others have described artificial compressibility iteration schemes for solving implicit time discretizations of the unsteady incompressible Navier-Stokes equations. Such schemes solve the implicit equations by introducing derivatives with respect to a
The accuracy and efficiency of several lower and higher order time integration schemes are investigated for engineering solution of the discretized unsteady compressible Navier-Stokes equations. Fully implicit methods tested are either the backward differentiation formulas (BDF) or stage-order two,