摘要
本文针对工程中关心的流固耦合以及复杂边界物体绕流问题,采用算子分裂的方法求解二维不可压N-S方程,采用完全正交的矩形网格,用浸入式边界模拟静止和运动物体的边界。使用这种方法,本文分别对低雷诺数下的光滑平板绕流,圆柱绕流,低KC数下的振荡圆柱进行了数值模拟。计算结果与以往的数值和试验结果吻合得很好,证明了浸入式边界方法和所发展的程序的可靠性。
Aiming at the problem of Fluid-Structure Interaction ＆ flow pass Complex Geometries, an immersed boundary method are applied to the numerical simulation of the flow past a circular cylinder and an oscillating circular cylinder in water at rest at low Keulegan-Carpenter numbers. In this paper, we solved two dimension incompressible Navier-Stokes equations with operator splitting techniques. Good agreement was found between the present numerical results and previous computational and experiment results.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2007年第3期399-402,共4页
Journal of Engineering Thermophysics
基金
国家自然科学基金(No.50136010No.10472009)
关键词
浸入式边界
运动边界
流固耦合
immersed boundary method
moving boundaries
fluid-structure interaction
