起動渦旋 的英文怎麼說
中文拼音 [qǐdòngguōxuán]
起動渦旋
英文
starting vortex-
Optics aberrations aroused by moving vorticity pulse
運動渦旋脈沖引起的光學畸變The vortex simulated in this article include the shedding vortex induced by the vane trailing edge boundary layer, the endwall vortex generated by the endwall boundary layer interaction, the passage vortex generated by the rotor rotation, and the leakage vortex generated by the tip clearance flow
渦輪級內的渦運動包括：導向器葉片尾緣附而層引起的脫落渦；轉子通道內轉子的旋轉運動產生的通道渦；根腳區兩個端壁附面層干涉，形成的根腳渦；存在葉尖漏流時，出現的漏流渦。When the layers in the shear flow become wrinkled the motion grows complicated, especially when the wrinkles roll up into whirls.
當剪流中流體層開始起皺，尤其是皺褶捲曲成旋渦時，運動就復雜化了。The numerical simulation and experimental research made on the characteristics of the clearance cavitations in kaplan turbine are described herein ; in which the analysis mainly is concentrated on the characteristics of leakage - vortex caused by the flow of the clearance between blade tip and blade chamber, that occurs at the front - pressure side of the blade, and the intensity of the secondary - flow - vortex ; furthermore, the relationship in between the leakage - vortex, secondary flow vortex, cavitations and erosion are analyzed as well
摘要對軸流轉槳式水輪機輪緣間隙流動及空化特性進行數值模擬和試驗研究，重點分析輪緣間隙流動在正面頭部泄漏流動所引起的泄漏渦帶、二次流動的漩渦強度和空化特性，以及泄漏渦帶旋轉、二次流動的漩渦與空蝕和磨損之間的關系。In the near field, the vortex pairs are gradually and periodically formed, and at the same time they migrate down stream under the self - induced velocity
在作動器出口附近，旋渦對逐漸捲起並向下游推進，而且旋渦對是不連續的。A transverse secondary circulation is produced by the coupling of high and low jets, while the sinking branch of the secondary circulation providing the dynamic conditions for the dry intrusion air. during the period of the heavy rain process, dry intrusion descends southward along the intense constant potential temperature lines, which promotes the lower cyclone. in addition, the pouring of upper - level dry air not only decreases ground temperature behind the front but also increases surface pressure and velocity
由於高、低空急流耦合，在高空急流中心左側產生的下沉運動和高空急流中心右側、低空急流左側產生的上升運動在鋒面上形成一次級環流，次級環流的下沉支運動為對流層高層干空氣和高位渦的下傳提供了動力條件；進一步研究發現，干侵入沿相當位溫密集帶向南向下伸展，引起對流層低層氣旋性渦度的發展；此外，高層乾冷空氣向下注入，導致地面溫度降低、氣壓升高、風速加大、低層輻合增強、上升速度加大，從而促進了新的對流運動，引起降水增強。An experimental study on the vortex - induced vibrations of a circular cylinder was conducted to investigate the vibration of the towed - cable when the towed array sonar was dragged underwater
摘要為了考察圓柱型聲納陣拖纜在水下拖曳時，由於尾流中發放旋渦激起的渦激振動情況和有關規律，進行了試驗研究。分享友人