Nonlinear iteration methods for high speed laminar compressible Navier-Stokes equations
نویسندگان
چکیده
منابع مشابه
Nonlinear Iteration Methods for High Speed Laminar Compressible Navier Stokes Equations
Full Newton nonlinear iteration is compared to use of a defect correction approach rst order Jacobian second order residual for solving the steady state compressible ow equations The Jacobian is constructed numerically and solved using a PCG type method with block ILU k preconditioning Numerical tests are carried out using the NACA airfoil at various free stream Mach numbers and Reynolds number...
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It is shown that expansion waves for the compressible Navier-Stokes equations are nonlinearly stable. The expansion waves are constructed for the compressible Euler equations based on the inviscid Burgers equation. Our result shows that Navier-Stokes equations and Euler equations are timeasymptotically equivalent on the level of expansion waves. The result is proved using the energy method, mak...
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The multigrid performance of pointwise, linewise and blockwise Gauss-Seidel relaxations for compressible laminar and turbulent Navier-Stokes equations is illustrated on two low-speed test problems: a flat plate and a backward facing step. The line method is an Alternating Symmetric Line Gauss-Seidel relaxation. In the block methods, the grid is subdivided into geometric blocks of n x n points w...
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ژورنال
عنوان ژورنال: Computers & Fluids
سال: 1997
ISSN: 0045-7930
DOI: 10.1016/s0045-7930(96)00041-2