Convergence acceleration of an aeroelastic Navier-Stokes solver
Convergence acceleration of an aeroelastic Navier-Stokes solver
复制标题
气动弹性纳维-斯托克斯求解器的收敛加速
DOI：
10.2514/6.1994-2268
复制
发表时间：
1994
期刊：
影响因子：
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通讯作者：
G. Guruswamy
中科院分区：
文献类型：
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作者：
S. Obayashi;G. Guruswamy
向Navier-Stokes求解器添加了新功能，以更高效地执行稳态模拟。将LU-SGS隐式格式和HLLE(Harten-Lax-van Leer-Einfeldt)迎风格式相结合，完全改写了求解Navier-Stokes方程的流动求解器。为了提高静力气动弹性分析的整体收敛速度，对直接耦合的结构方程采用伪时间推进法。给出了刚性机翼和柔性机翼跨音速绕流的计算结果。
New capabilities have been added to a Navier-Stokes solver to perform steady-state simulations more efficiently. The flow solver for solving the Navier-Stokes equations is completely rewritten with a combination of the LU-SGS (Lower-Upper factored Symmetric Gauss-Seidel) implicit method and the modified HLLE (Harten-Lax-van Leer-Einfeldt) upwind scheme. A pseudo-time marching method is used for the directly coupled structural equations to improve overall convergence rates for static aeroelastic analysis. Results are demonstrated for transonic flows over rigid and flexible wings.