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Exponential Compact Higher Order Scheme for Steady Incompressible Navier-Stokes Equations

机译:稳态不可压缩Navier-Stokes方程的指数紧致高阶格式

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AbstractAn Exponential Compact Higher Order (ECHO) scheme is developed for the stream function voracity form of steady viscous incompressible Navier-Stokes equations. The coupled equations are solved using an iterative procedure. The developed scheme has been validated initially using two model problems with known analytic solutions and demonstrated the fourth order rate of convergence and about fifth order for highly convection dominated problems. Thus the developed scheme requires smaller number of grid points for the computation. Finally the tested code is used to simulate the lid-driven square cavity flow up to Reynolds number 10,000.
机译:摘要针对稳态粘性不可压缩的Navier-Stokes方程的流函数变率形式,开发了一种指数紧致高阶(ECHO)方案。使用迭代过程求​​解耦合方程。所开发的方案已使用已知解析解的两个模型问题进行了初步验证,并证明了对流占优的问题的四阶收敛速度和约五阶收敛速度。因此,开发的方案需要较少数量的网格点进行计算。最后,经过测试的代码用于模拟盖驱动的方腔流量,直到雷诺数为10,000。

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