摘要
本文提出了计算双自由度二维振动平板绕流的一种半解析非线性方法;讨论了非定常流Kutta条件的自洽处理问题;模拟了尾涡的脱泻、变形和配对过程;并对振动平板的推进运动方式进行了优化分析,给出了优化推进参数的选择范围。
In this paper, a semi-analytical nonlinear method is suggested for calculating the two-dimensional unsteady flow past a pitching and plunging flat plate. A technique of treating the unsteaay Kutta condition is designed to eliminate the singularities both in velocity and pressure at the trailing edge. Using this method, we have performed the calculations of pressure distributions, unsteady hydrodynamic forces and the positions of wake vortices for the case of oscillating flat plates. Based on these calculations, the non-linear effects and the optimization of propulsion parameters are discussed.
出处
《水动力学研究与进展（A辑）》
CSCD
北大核心
1989年第4期69-82,共14页
Chinese Journal of Hydrodynamics
基金
国家自然科学基金
