摘要
采用移动坐标系法结合有限体积数值计算方法,对圆柱瞬时启动和瞬时停止问题进行数值模拟,计算了Re为40和550,停止时间分别为102和550的圆柱启动停止,分析了圆柱表面涡量的演变,流场中流线的演化等,部分结果与试验结果、已有文献结果进行了比对,吻合很好.该方法可以推广应用于单物体无界流域的运动计算.
Both moving coordinated method and finite volume method are used to simulate the flow caused by impulsively started and stopped cylinder. The evolution of vortices on the cylinder surface and the stream lines in flow are analyzed. This method can also be applied to simulate the flow field of a single object moving in unbounded fluid.
作者
孙新蕾
杨路春
王长杰
徐锋
SUN Xin-lei;YANG Lu-chun;WANG Chang-jie;XU Feng(School of Information and Communication, Wuhan College, Wuhan 430212, China;Wuhan 2nd Ship Design and Research Institute, Wuhan 430205, China)
出处
《宁波大学学报（理工版）》
CAS
2018年第3期104-111,共8页
Journal of Ningbo University：Natural Science and Engineering Edition
基金
国家自然科学基金(51509193)
关键词
移动坐标系法
有限体积法
圆柱瞬时启动
圆柱瞬时停止
moving coordinated method
finite volume method
impulsively started cylinder
impulsively stopped cylinder
