The vortex is one of the important features of flow field. This paper detects the vortex flow based on pattern matching method.
涡流是流场的重要特征之一，本文采用基于模板匹配的方法来识别流场的涡流特征。
Around the dark core of an optical vortex, the energy flow carried by the light beam is like a spiral staircase, flowing in a clockwise or counterclockwise direction.
绕着光涡旋的黑暗中心，光束携带的能量流就像螺旋梯，沿着顺时针或者逆时针方向流动。
It's necessary to recognize the different vortices, when aero-optical distortion caused by hypersonic flow is studied using vortex structure as the turbulence model.
利用涡结构对光波通过高速流场的光学传输特性进行建模，就必须进行涡结构的识别。
As in the incompressible flow, the Field and Matter Bicharacteristics of Vortex also have been demonstrated.
如同不可压流动，在可压缩流动中旋涡同样具有场与物质两重特征。
Vortex and flow separation control has been one of the important subjects in the field of aerodynamics.
旋涡和流动分离的控制一直是空气动力学研究的一个重要课题。
An experimental research on the performance of a small flow vortex tube is introduced.
本文用实验方法研究了小流量涡流管制冷的特性。
The second part studies and analyzes the tip leakage flow and tip vortex.
第二部分对叶顶间隙泄漏流动和叶尖涡进行了研究分析。
The vortices in the vortex wave flow have particular moving structure, they develop downstream first, stay at the point for a short time, then move upstream.
涡旋波流场中旋涡有其独特的运动规律——先向下游移动，停留很短的时间后，然后向上游移动。
The results show that the pressure signal changes are closely related to the vibrations, both of which are caused by the unsteady characteristics of the vortex flow.
分析结果表明，水泵吸水池内部流动所引起的压力和振动变化关系密切，都是由吸入涡的非定常特性引起的。
The details of the flow fields such as the backflow, vortex and secondary flow were revealed.
揭示了导叶内部回流、漩涡，以及出口流动滞止区、二次流等流动细节；
It is shown that there are two regions in the cyclone, the steadily tangential flow in the spiral channel and the combined vortex flow in the centre.
计算结果表明，旋风分离器内部的流场分为两部分：螺旋通道内比较稳定的流场和筒体中心区域的复合涡结构流场。
Based on the potential theory, a linearity combination of the disturbance flow field generated by the uncompressible vortex part was applied in the computation of separate vortex flow.
以势流理论为基础，本文用不可压流涡段所产生的扰动流场的线性叠加，计算涡分离流动的流场。
Research results show that vortex frequency estimation method based on HHT can estimate vortex signal frequency accurately, and increase the antiinterference ability of the vortex flow meter.
研究结果表明，基于HHT的涡街频率估计方法，可以精确估计涡街信号频率并提高涡街流量计的抗干扰能力。
The results, compared with non vortex flow, are that effect of vortex flow on forced heat transfer is obvious.
实验表明，涡旋流动有明显的强化传热作用。
A new signal processing circuit of vortex flow meter based on variable gain amplifier and digital signal processor (DSP) unit is designed.
设计一种基于变增益运算放大器和DSP数字信号处理单元的新型涡街流量计信号处理电路。
The velocity field resulting from vortex flow is studied. The vector field distribution and geometry topology characteristic are discussed by means of numerical simulations.
研究了由涡度诱导出的速度场，采用数值模拟方法，讨论了矢量场的分布和几何拓扑性质。
The method of correcting the non linear instrument coefficient in an integrated intelligent 2 wire vortex flow transmitter is stated.
提出了一体化智能二线制涡街流量变送器对仪表系数的非线性进行校正的方法。
The vortex flow is resulted from inertial centrifugal force and the jet flow is from strong convection by the horizontal convergence.
充分说明龙卷风由涡旋流和急流这两种流叠加而成，涡旋流是由惯性离心力造成的，急流是由水平辐合辐散而引起的强对流。
The paper introduces calculating method of energy consumpation caused by flowmeters, such as orifice flow meter, vortex flow meter, and illustrates magnitude of energy consumpation with examples.
介绍了孔板、涡街流量计测量不同流体时引起的能耗量的计算方法，举例说明了能耗量的大小。
Experimental investigation on the control of dynamic stall type vortex flow was made in a low speed wind tunnel by using phase averaged pressure measurement technique.
本文对动失速型非定常分离涡结构的控制方法，在低速风洞中应用相平均测压技术进行了实验研究。
In this paper, according to the vortex flow theory, a new dual chamber vortex generator model is suggested to improve the COP of the absorption refrigeration system.
根据旋流理论提出了一种新型的用于吸收式制冷循环的双室涡旋发生器。
It can be applied to measure the parameters of the air vortex flow field in wind tunnel test.
可应用于风洞试验中测量空气旋涡流场参量。
The contrast of new designed blade with the original one is made in the design of free vortex flow combining with aft-loading profile.
在自由涡与后加载叶型相结合的设计中，对新设计与原设计进行了对比。
This paper gives the circuit analysis of the check amplifier which is the core component of the LUGB series vortex flow transmitter.
介绍了LUGB系列涡街流量变送器的核心部件-检测放大器的电路分析。
The vortex flow field is calculated with difference methods, and the motion characteristics and the bursting mechanism of the leading-edge separated vortices of delta wing are analyzed.
采用差分方法计算旋涡流场，进而分析三角翼上前缘分离涡的运动特点及其破碎机理。
The vortex flow and mold flux entrapment in the thin slab continuous casting mold was investigated using a 1/4 scale water model.
利用1/4水模型对薄板坯连铸结晶器内的涡流及卷渣行为进行观察研究。
Velocity gradient, pressure gradient and circulation gradient are used to model the separated vortex flow field over a leading edge delta wing.
用速度梯度、压力梯度和环量梯度模拟大攻角尖前缘三角翼流场。
Velocity gradient, pressure gradient and circulation gradient are used to model the separated vortex flow field over a leading edge delta wing.
用速度梯度、压力梯度和环量梯度模拟大攻角尖前缘三角翼流场。
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