论文部分内容阅读
Recent investigations revealed that vortex oscillations exist over slender bodies[1-2] and slender wings[3].In this study,vortex oscillation on an axisymmetric hemisphere-cylinder at angles-of-attack of 30 deg and Reynolds number of 22,000 with various rear-end shapes was studied using large-eddy simulation(LES)and analyzed using three-dimensional dynamic mode decomposition(DNID).