無粘性流動 的英文怎麼說
中文拼音 [wúniánxìngliúdòng]
無粘性流動
英文
frictionless-flow- 無 : 無Ⅰ動詞(沒有) not have; there is not; be without Ⅱ名詞1 (沒有) nothing; nil 2 (姓氏) a surn...
- 粘 : 粘動詞(粘附) glue; stick; paste; adhere to; bond
- 性 : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
- 流 : Ⅰ動1 (液體移動; 流動) flow 2 (移動不定) drift; move; wander 3 (流傳; 傳播) spread 4 (向壞...
- 流動 : 1. (液體或氣體移動) flow; run; circulate 2. (經常變換位置) going from place to place; on the move; mobile
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Flow characteristics, especially in inviscid region, are determined by absolute value as well as relative value of scale
流場(特別是核心無粘流區)的特性不僅取決于流動尺度的相對值,也取決于其絕對值。The resonant flow was researched in this paper, which is an incompressible, inviscid fluid with surface tension and different variational bottoms ; the effects of different variational walls on the nonlinear surface waves were analyzed
本文通過對具有表面張力的、不可壓縮、無粘性流體流過不同壁面時的共振流動進行研究,分析了壁面變化對非線性表面波的影響。Y42 series worm feeder fit for feeding granule materials which are easy to flow, have no or low viscidity, no or low milling performance, not be worried about crashing but need airproofing conveyance
Y42系列螺旋給料機適應于易流動無粘結性或粘結性小,無磨琢性或磨琢性較微,不怕破碎又要求密封輸送的粉粒狀物料的給料。A method is provided to measure the friction parameters of the bed. the maximum friction torque, coulomb friction torque, viscous friction coefficient and moment of inertia can be gotten by fitting the free reduced rate curve of the gimbals and measuring the motor current when the motor begins to rotate
提出了一種測量轉臺摩擦特性的方法,通過對轉臺在無外推力作用下的速度衰減曲線的擬合以及電機啟動過程電流和轉速的測量,可以得到最大靜摩擦力矩、庫侖摩擦力矩、粘滯摩擦系數及轉動慣量。The flow equations are solved using finite difference technique. using body - fitted curvilinear coordinate system treated the boundary conditions. by iteratively solving the flow governing equation and the blade equation, the design of axial flow pump impeller in the quasi - three - dimensional rotational flow can be performed according to the angular momentum distribution, the blade which was designed in the lifting method, flow channel and the blade thickness given
其次在流動無粘性、不可壓及考慮葉片厚度的條件下,依據葉輪內的流動特性,推導了葉輪內三維流動周向平均流動控制方程以及葉片方程;在貼體坐標系中,採用有限差分法求解流動方程和葉片方程;在採用升力法設計出的葉片作為初始葉片、給定葉片速度矩分佈、葉片厚度分佈和葉輪軸面流道幾何形狀條件下,迭代求解流動控制方程及葉片方程,實現了軸流泵葉輪的準三維方法設計。Firstly, based on n - s equation, the momentum differential equation ( contained centrifugal force ) is derived by simplification in boundary layer and then integrates the differential equation over the thickness of the boundary layer, the momentum integral equation is deduced. the dimensionless centrifugal factor is introduced, then the solution of the momentum integral equation is obtained. the dimensionless group is introduced to determined separation of boundary layer
本文首先根據粘性流體力學的一般方程,通過在邊界層內進行量級比較,在所限定的范圍內得到了含有離心力的邊界層動量微分方程並給出其滿足的邊界條件,然後對該微分方程在邊界層內積分得到離心泵葉輪邊界層動量積分方程,在求解過程中引入了無量綱離心因子,並作了相應合理的假設,得出積分方程解的一般表達式,並引入以邊界層動量損失厚度為主要特徵量的無量綱參數對邊界層分離進行評價。Low viscous drag and high - speed capability : the low viscous drag of the magnetic fluid, and non - contacting seal configuration of the magnetic fluid feed through assure its extremely smooth operation and its high - speed capabilities
低阻尼和高速旋轉能力:磁性流體極低的粘滯阻力和磁性流體進行給裝置無需接觸密封圈的結構,決定了它的穩定操作和高速轉動。In chapter one, we analyze the views of the effect of monetary policy of economists of different schools. on the whole, keynesian economists think the monetary policy can play a role in stabilizing economic fluctuation because of the existence of salary and price rigidities, but new - classical economists debate that monetary policy is invalid
第一章我們系統分析了不同流派的經濟學家對貨幣政策有效性的觀點,總體來說,凱恩斯主義經濟學家認為由於工資和價格粘性的存在,貨幣政策能夠起到平抑經濟波動的作用,而新古典經濟學家則認為貨幣政策是無效的。Because the equation of shallow water and the equation of inviscid compressible flow have completely similar mathematical forms, a lot of mathematical concepts and methods - including the numerical simulation method of aerodynamics can be used in the research of the shallow wave
由於數學上淺水長波方程與可壓縮氣體的無粘性流方程類似,可以把淺水長波方程比擬成可壓縮氣體無粘性流方程,將空氣動力學中所得到的許多數學概念和方法(包括數值方法)直接應用於淺水長波的運動。Therefore this approach has become the highlight of the cfd field, and has received much attention. based on this optimization design theory, this thesis deeply studies some kinds of aerodynamic design problem in inviscid and viscous flow, such as aerodynamic inverse design and drag reduction problems. at the same time, the aerodynamic design optimization programs have been developed successfully
基於該設計方法的研究價值和應用前景,本文通過應用控制理論的優化設計方法,對無粘性流動和粘性流動情形下不同類型的氣動設計問題進行了深入研究,如反設計、減阻問題研究,成功發展了相應的氣動外形優化設計程序。分享友人