涡粘性 meaning in English

eddy viscosity

For the present two les models , adopting the subgrid eddy viscosity concept and introducing the transport equation of turbulence energy k , the subgrid scale turbulence is parameterized by the turbulence energy k and the length scale of turbulence / ( k - 1 model ) . in addition , vegetation is considered as an internal source of resistant force and turbulence energy
在应用大涡模拟方法求解数值计算模型控制方程时，亚网格雷诺应力项沿用了亚网格涡粘性系数思路，引入亚网格紊流脉动动能k的输运方程，建立了关于亚网格紊流脉动动能k和紊流特征长度l的k - l模型求解。
In this paper , maccormack explicit time - split scheme , baldwin - lomax algebraic turbulent model and two - steps hydrogen - air nonequilibrium chemical kinetics model are employed to simulate the 2 - d flow fields in a fixed geometry scramjet combustor in different injecting way of fuel in different flight conditions . the results show , in the same entrance condition , the operating mode of scramjet combustor is influenced by the control of fuel
本文采用maccormack显式时间分裂法、 b - l代数涡粘性湍流模型及氢-空气两步非平衡化学动力学反应模型，模拟了在不同的飞行马赫数条件下，固定几何的双模态燃烧室在不同供油规律下的二维燃烧流场。