扰动波 meaning in Chinese
perturbation wave
wavelet
Examples
- Furthermore , with the fourier series technique , the disturbance is discomposed into predominant mode and high frequency harmonics , and the nonlinear stability of the nonparallel boundary layer is studied
采用fourier级数的方法把扰动波分解为基本模态和高频谐波模态,导出非平行非线性抛物化稳定性方程。 - With the fourier series technique , the disturbance is discomposed into predominant mode and high frequency harmonics . the nonlinear stability of three - dimensional disturbances for the blasius boundary layers is studied
借助fourier级数的方法将扰动波分解为基本模态和高频模态,研究了三维扰动的非线性边界层稳定性问题。 - Using the two - stream fluid model , the linear dispersion relation is derived assuming a two - dimensional spatial geometry . two cases are considered , one is that the 2d spatial geometry is defined by the plane containing the two counterstreaming electron populations and the perturbation wave vector ( referred as the xy plane ) , and the other is that the geometry is defined by the plane being vertical to the two counterstreaming electron populations ( referred as the yz plane )
对高能束流和电子回流构成的双流系统，建立冷等离子体流体模型，采用简正模分析方法，分别考虑扰动波矢在平行于电流传播方向的平面(记为xy平面)上和在垂直于电流传播方向的平面(记为yz平面)上这两种情况，推导了不稳定性的色散关系。 - Generally , tidal bore is wave alignment moving upstream estuary , and its surface will break when the wave alignment is strong , which leads to water roll tracing the source . the velocity , which is between small - disturbed wave velocities before tidal bore happens and the one after tidal bore happens , increases with the ratio of tidal bore height to the water depth in wave front
涌潮一般是向河口上游推进的波列，强度大时，表面破碎，进而发展成溯源推进的水滚，其传播速度随涌潮高度与波前水深比值增加，大小介于涌潮前后小扰动波波速之间。 - The shearing layer is carried by the jet and the eddy is formed because of the instability and selective amplification of shearing layer which will propagate to the downstream . as the eddy impacts the impinging wall , a wave of pressure disturbance with certain frequency is induced . this wave then propagates to the upstream with high speed , and results in the overlap and amplification of the waves when the frequencies of them are close with each other
当前喷嘴流束中的不稳定扰动波在穿过腔内的剪切层时，剪切层对其有选择放大作用，形成涡环结构，剪切流动中涡环与碰撞壁撞击，在碰撞区域产生压力扰动波并向上游反射，在上游剪切层分离处诱发新的扰动的产生，当新扰动与原扰动匹配时，射流上游就被不断地受到周期性激励，腔内就产生流体自激振荡并在后喷嘴出口形成脉冲射流。