渦流柵 的英文怎麼說
中文拼音 [guōliúzhà]
渦流柵
英文
vortex lattice-
Effect of reynolds number on turbine cascade flow
雷諾數對渦輪葉柵流動的影響Numerical simulation of transonic flow field in two turbine cascades
兩個渦輪葉柵跨聲速流場的數值模擬Understanding the three - dimensional nature of these flows and understanding the interactions between the ejected coolant and the endwall flow are the key to a successful endwall film - cooling design. results from this investigation enhance this understanding
揭示流場的三維特性以及噴射的冷空氣與端壁附近的外流場相互作用規律是渦輪葉柵端壁氣膜冷卻設計成功的關鍵，本文的研究成果增加了對此規律的更深入了解。One cooling method that has gained increasing importance is endwall film - cooling, where coolant air is discharged though discrete holes in the inner and outer endwalls of a turbine blade passage. after leaving the holes, the coolant forms a protective layer between the hot mainstream gas and the surface that is to be protected
目前廣泛採用的一種重要冷卻方法是渦輪葉柵端壁氣膜冷卻，該方法中冷空氣穿過渦輪葉片上內外端壁離散冷卻孔進行交換，且冷空氣流經冷卻孔后在主流熱空氣與被保護表面之間形成保護層。Direct numerical flow simulation in a two - dimensional turbine cascade
二維渦輪葉柵流場的直接數值模擬Numerical simulation of unsteady vortex in the wake of cascade flow
葉柵流場尾跡中非定常渦系的數值模擬The effect of turbine blade positive curving on the flow field of a turbine transonic cascade
葉片彎曲對跨音速渦輪葉柵流場的影響Abstract : this paper uses the topology theory to analyze the surface flow spectrums of straight, positively curved and negatively curved cascades with relative tip clearances of 0. 023 and 0. 036, finds apparent differences of topology and vortex structures in the blade tip and the suction side wall corner of single type of cascade with this two clearances, and studies the mechanism of the difference formation as well as their effects on the energy loss
文摘:應用拓撲原理分析了葉頂相對間隙為0 . 023和0 . 036的渦輪直葉柵和正、反彎葉柵的壁面流譜，發現在兩種間隙下同類葉柵的拓撲與旋渦結構在葉頂和吸力面壁角明顯不同，探討了差別形成的機理及其對能量損失的影響There are five parameters need to be measured. there are five channels for input : the displacement of casting - roller, the rotate speed of casting - roller, the pressure of casting and rolling, the casting temperature and the water - speed of cooling water. they are measured by raster, photoelectric coder, strain pressure sensor, thermocouple and turboflowmeter
系統需要進行監測的參數有五個，即有五路輸入信號：鑄輥位移、鑄輥轉速、鑄軋壓力、澆鑄溫度、冷卻水流速，分別採用光柵、光電編碼器、應變式壓力傳感器、熱電偶和渦輪流量計作為檢測元件。Numerical simulation of the three - dimensional turbulent flow in a turbine stage cascade
渦輪級葉柵三維湍流流動的數值模擬Experimental and numerical study of wall flow pattern of turbine cascade with tip clearance
有間隙渦輪葉柵壁面流譜實驗與數值模擬研究Numerical simulation of the development of the secondary flow vortices and aerodynamic characteristics of a turbine rotor cascade
透平動葉柵二次流渦系演變及氣動特性的數值模擬This dissertation has on the research and design of a micro turbine engine as background and it is for the purpose of comprehending viscous flow behaviors in micro scaled conditions and that in the mini - turbine cascades. a mini wind tunnel is designed and set up which also can be used in other micro flow experiments. on the basis of this mini wind tunnel, three mini flow experiments, including micro jet experiment, micro boundary layer experiment and mini - turbine cascades experiment, have been carried out
本文以某型微型渦輪噴氣發動機研製為背景，以認識微尺度下粘性流體流動狀態及其機理和微渦輪葉柵通道內部流動特性為目的，設計並搭建了除本實驗外還可供其他流體力學實驗使用的微型風洞，並在該微型風洞基礎上進行了微尺度射流實驗、微尺度壁面邊界層實驗和微尺度渦輪葉柵實驗。For simulating the radial static pressure gradient behind the true turbine guide cascade in low speed wind tunnel with annular cascade, the backboards were placed in the downstream field of the guide model cascade of the low - pressure stage of a turbine, and the effects of the types and positions of the backboards on the outlet flow field of the model cascade were experimentally researched
為在環形葉柵低速風洞實驗中模擬實際渦輪級靜葉后徑向壓力梯度，在某型渦輪低壓級靜葉的下游流場設置了擋板，實驗研究了擋板形式及設置位置對靜葉出口流場的影響。With this program, the blade suit for flow parameters that was obtained from the meridional - flow program is designed. finally, the flow field of the cascade of the counter - turbine is simulated using the cfd program. the cfd program is based on the jameson cell - centered finite volume method
最後對所設計出的對轉渦輪平面葉柵內部流場進行了初步數值計算，採用的計算格式為jamescn的具有二階精度的runge ? kutta四步顯式有限體積法，結合時間推進求解euler方程。There were some intensively nonlinear features in the vibrating cascade flow. the frequency of the separated vortex ' s propagation was not equal to the vibrating frequency of the blade
二維分析中發現振動葉柵非定常粘性流動具有較強的非線性特徵，振動誘發的分離渦傳播頻率與葉片的振動頻率不一致。Film cooling of the surface of a gas turbine blade was studied in a large - scale low - speed opening wind tunnel according to actual requirement of the design of aero - engine. the surface of a gas turbine blade was cooled by cylindrical holes in the experiment, with the hole number of fifteen in stator and eight in rotor
應航空發動機設計的要求，在大尺寸低速葉柵傳熱風洞中分別對發動機渦輪導向葉片和動葉表面的氣膜冷卻特性進行了研究，具體研究在不同氣膜孔出流時，在不同主流雷諾數和吹風比情況下葉片表面局部換熱系數的分佈規律。分享友人