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The current interest in hypersonic flows is leading to significanteffort both to develop CFD methods and also to provide experimentaldata for their evaluation. In our research we attempt to integrateCFDand experiments as closely as possible so much so that most of ourexperimental model designs...
In this paper we investigate the performance of CGS, BCGSTAB and GMRES with ILU preconditioner for solving convectiondiffusion problems. Numerical experiments indicate that BCGSTAB appears to be anefficient and stable method. CGS sometimes suffers from severe numerical instability. GMRES shows a...
The twodimensional steady boundary layer equations, forsimultaneous heat and fluid flow within ducts, are handled through thegeneralized integral transform technique. The momentum and energy equationsare integral transformed by eliminating the transversal coordinate andreducing the PDEs into an...
The paper presents the numerical performance of the preconditionedgeneralized conjugate gradient PGCG methods in solvingnonlinear convection diffusion equations. Threenonlinear systems which describe a nonisothermal chemicalreactor, the chemically driven convection in a porous medium and...
We study the sparse grid combination technique as an efficient methodfor the solution of fluid dynamics problems. The combination technique needsonlyOh1nlogh1nd1grid points for ddimensional problems, instead ofOhdn grid points used by the full grid method.Here, hn 2n denotes the mesh width of...
Nonequilibrium hypersonic viscous flows with high enthalpyconditions have been computed with an implicit timedependentfinitedifference scheme. This scheme accounts for both chemical andvibrational nonequilibrium processes in air flow around ahemispherical cylindrical body. The air was assumed to...
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