二维圆柱绕流的离散涡法计算

摘要

采用离散涡方法 (Discrete Vortex Method,DVM) 研究弹性支承的二维圆柱绕流问题,成功的模拟出涡激振动 (VIV) 这一现象,与实验对比得到了较好的结果.并且在前人研究成果的基础上,对离散涡方法的精度加以改进,证实了这一方法在研究涡激振动问题上的可靠性和易行性,以及适应高雷诺数下计算的优点.%The problem of the two-dimensional flow around a cylinder with elastic support is investigated using Discrete Vortex Method (DVM) . The phenomenon of Vortex-Induced Vibration can be observed successfully in our simulation and the results have a very good agreement with the experiment results, proving that the Discrete Vortex Method (DVM)is simple and reliable for the investigation of the Vortex-Induced Vibration, especially having tremendous advantages for the simulation with high Reynolds number. The whole calculation program for the problem was written in FORTRAN language.