...(脱体涡,trapped vortex),高速扭转的气流提高了机翼表面的负压,漩涡强度随迎角增大而增大,产生很大的涡升力(Vortex lift),并在升力线斜率上显示出显着的非线性。这种非线性升力在低速或大迎角状态下更明显,所产生的升力更大。
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本文简要介绍近年来国外进行非定常涡升力实验研究的一些情况,以供开展有关工作的参考。
There is interesting progress abroad in the experimental studies on unsteady vorteX-lift. This paper presents some encouraging information for references.
而交流电所产生的电磁力对于绕流涡街、升力、阻力的控制作用,则与所使用的频率有关。
The control effect of electromagnetic force on cylinder wake, lift force and drag force , which was caused by alternating current, is related to its frequency.
应用升力面理论涡格法和面元法,建立了拖式吊舱推进器非定常水动力性能的数值计算方法。
Based on potential flow theory, a numerical method is proposed for predicting the steady and unsteady hydrodynamic performances of puller type podded propulsors.
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