vortex ring

常見例句

The effect of the viscosity is mainly shown in the diffusion of vorticity and the generation of secondary vortex ring.
粘性的作用主要體現(xiàn)在渦量的耗散和新的二次渦環(huán)的產(chǎn)生；
The results show that the interaction between a viscous vortex ring and a free surface is different from the inviscid one.
結(jié)果表明：由于粘性的存在，使得渦環(huán)與自由表面的相互作用與無粘情形相比有許多不同。
Physically, at a special critical wave speed the flow may have a naturally periodical separated-reattached pattern, with each wave trough capturing a stable vortex ring.
物理上看，在一個(gè)特定的臨界行波速下會(huì)形成自發(fā)的周期性分離再附流，每個(gè)波谷的分離區(qū)捕獲一個(gè)穩(wěn)定的渦環(huán)。