非粘性流動 的英文怎麼說
中文拼音 [fēiniánxìngliúdòng]
非粘性流動
英文
non-viscous flow- 非 : Ⅰ名詞1 (錯誤) mistake; wrong; errors 2 (指非洲) short for africa 3 (姓氏) a surname Ⅱ動詞1 ...
- 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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The research of this dissertation is focused on how to solve the 3 - dimensional compressible navier - stokes equations by the implicit finite difference algorithm and to simulate numerically the unsteady subsonic and transonic viscous flows around rigid and elastic wings. on the base of them the aeroelastic characterictics of an elastic wing have been studied
本文的主要工作是用隱式有限差分法求解三維非定常紊流n - s方程組,數值模擬剛性機翼及彈性機翼的亞、跨、超音速定常及非定常粘性繞流,並在此基礎上研究了彈性機翼的氣動彈性問題。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。The flow of turbine in design and off - design state was simulated by the method of numerical simulation of 3 - d viscous flow, and the flow mechanism in design and off - design state was studed
主要利用三維粘性非定常數值模擬的方法對設計狀態和高背壓條件下透平葉片內部的流動進行模擬,並分析了設計狀態和高背壓條件下非定常流動機理。The total pressure is subdivided into the hydrostatic and residual hydrodynamic components. k - e turbulent flows model, non - staggered curvilinear grids, momentum interpolation, simplec and simpler algorithms are used to solve the basic equations
水流運動方程壓力項分解為靜水壓力和動水壓力,紊動粘性系數由k紊流模型求解,非交錯網格減化方程離散,降低插值運算。Then the steady and unsteady subsonic, transonic and supersonic viscous flows around airfoil and some aircraft are numerically simulated. the 3 - dimensional unsteady navier - stokes equations are solved using the implicit lu - nnd algorithm, with baldwin - lomax turbulent model. on the basis of simulating unsteady viscous flow, coupling the structure dynamics equations, the problems of static aeroelasticity and flutter are investigated for wings and elevator
在模擬非定常粘性繞流的基礎上,與顫振運動方程相耦合,分別對機翼和全機流固耦合現象中顫振問題進行了研究,準確求解跨音速顫振臨界速度,分析機翼和全機的從亞音速到超音速范圍的顫振規律,並研究分析了機翼飛行迎角變化對顫振速度的影響。An implicit algorithm suitable for solving viscous flow problems on unstructured mixed element grids
一種隱式時間演算法在非結構混合網格粘性流動計算中的應用Based on prandtl ' s momentum transportation, this paper calculates in detail the physical quantities such as eddy viscosities, and ratio of eddy viscosity to motion viscosity, total stresses with respect to relative position in three regions of viscous sub - layer, buffer layer, and main turbulent stream for non - newtonian fluid flowing turbulently in ducts, which according to karman ' s three layer models and measurement of fluid parameters in evaluation apparatus, discusses the influence of polymer drag reduction on flowing properties of non - newton fluid, analyzes quantitatively principle of turbulent reduction phenomenon and condition of increasing reduction rate
摘要以普蘭德動量傳遞理論為基礎,按照卡門的三層模型,通過室內模擬環道用0號柴油及加入減阻劑在圓管內的流動參數的測定,計算了非牛頓型流體管內湍流邊界層的層流內層、過渡層、湍流中心的渦流粘度,渦流粘度與運動粘度比、總應力隨相對位置的變化等定量參數,探討了高分子減阻劑對非牛頓流體流動特性的影響,對湍流減阻現象的機理與增大減阻率的條件進行了定量分析。The computations are shown to agree well with available experimental and numerical data and the physics of 3d large - scale flow separations and vortex shedding are confirmed. the simulation of the flow around a maneuvering wigley hull is a demonstration of capability for calculations of sway forces and yaw moments acting on a hull moving obliquely at a large range of yaw angles. the focus of study is large - scale cross - section separation flows, bilge - vortex development along the hull in the longitudinal direction and their effects on hydrodynamic forces
應用所開發的求解器,以wigley船型為算例計算了大角度斜航船體粘性流場和水動力,分析了漂角的變化對船體所受到的粘性水動力的影響,相當精確地預報了以橫流分離和般渦生成與泄出為特徵的操縱運動船體特有流動形態及橫向水動力和轉脂力矩,經與現有試驗和計算數據比較,檢驗和驗證了該求解器精確模擬繞斜航運動船體的大尺度分離流動和計算非線性水動力的能力。Like other liquid crystals ( lc ), chorlesteric phase liquid crystal ( clc ) not only owns liquidity, deformability and viscosity of liquid, but also holds the optical anisotropy of crystal
膽甾相液晶同其他液晶態物質一樣,既有液體的流動性、形變性、粘性,又具有晶體的光學各向異性,是一種優良的非線性光學材料。However, for the same river, the obvious regularity exists in critical starting condition and the physical and mechanical indexes : the critical starting condition of the muddy cohesive soil increases with the decrease of the shear strength and decreases with the increase of the moisture content ; the critical starting condition of silty clay is the minimum, and the relation of the clay, the shear strength and the moisture content is nonlinear ; and the critical starting condition of the cohesive soil increases with the increase of the shear strength and the moisture content
而對同一條河流而言,起動臨界條件與物理力學指標之間則存在明顯的規律性:即對淤泥質粘土,起動臨界條件隨抗剪強度的減小而增大,隨含水量的增大而減小;粉質粘土的起動臨界條件最小,與抗剪強度、含水量呈非線性關系;粘土起動臨界條件則隨抗剪強度、含水量的增大而增大。For simplicity, these assumptions are followed in the simulation : 1 ) the coronary artery is modeled as rigid tube with constant cross section ; 2 ) the blood is assumed as viscous incompressible newtonian fluid without weight ; 3 ) the blood flow is developing laminar and becomes fully developed at far downstream
實際生理條件下,血液是粘彈性流體,但據文獻表明,只要血管直徑不太小,血液粘彈性對流動的影響不大,可以忽略不記,本文也吸收了這一結論以簡化非關鍵過程,以提高工作效率。Second, the structural dynamic equations for blades are introduced in this paper. through numerically solving the aerodynamics - structure coupled equations, a 2 - d unsteady viscous flow in a single cascade is investigated under flow - structure coupled conditions, and a preliminary analysis of the cascade flutter is prosecuted
其次,本文引入葉片結構動力學方程,通過數值求解氣動結構耦合方程體系,研究了氣固耦合條件下葉柵內的二維非定常粘性流動,並初步進行了葉柵的顫振分析。In this paper, maccormack explicit time - split scheme, baldwin - lomax algebraic turbulent model and two - steps hydrogen - air nonequilibrium chemical kinetics model are employed to simulate the 2 - d flow fields in a fixed geometry scramjet combustor in different injecting way of fuel in different flight conditions. the results show, in the same entrance condition, the operating mode of scramjet combustor is influenced by the control of fuel
本文採用maccormack顯式時間分裂法、 b - l代數渦粘性湍流模型及氫-空氣兩步非平衡化學動力學反應模型,模擬了在不同的飛行馬赫數條件下,固定幾何的雙模態燃燒室在不同供油規律下的二維燃燒流場。The research of this dissertation is focused on how to simulate numerically the steady and unsteady subsonic, transonic and supersonic viscous flows around wing and aircraft by computational fluid dynamics method. on this basis, several kinds of aeroelastic problems of aircraft are investigated
本文的主要工作是利用計算流體力學( cfd )方法,數值模擬機翼和全機的定常及非定常粘性繞流,並在此基礎上耦合結構動力學方程研究了飛行器的多種氣動彈性問題。Analysis of nonlinear viscoelastic melt flow in plate die by half analytical finite element method
半解析有限元法分析非線性粘彈體在板材模具中的流動So, it is indispensable to investigate thoroughly the three dimensional viscous flow through the turbine
為此,對水輪機內部流動狀況進行三維粘性流動數值解析是非常必要的。The navier - stokes equation is discretized in the moving - grid system. by adopting the explicit four - stage runge - kutta jameson finite volume scheme, and under the sustainment of acceleration algorithms such as dual - time stepping method, the multi - grid strategy and implicit smoothing of the residuals, a two dimensional unsteady viscous flow in vibrating cascades is simulated
本文在運動網格體系中離散n - s方程,應用runge - kutta四步顯式的jameson有限體積格式,並在雙時間方法、多重網格法及殘差光順等加速演算法的支持下,計算了二維振動葉柵非定常粘性流場。The phase - lagged method was adopted to solve the difficulty caused by the different number of vanes in different vane rows, some experiences and some formulas were shown in this paper
本文通過數值求解navier - stokes方程來模擬軸流式葉輪機械內多排葉柵通道二維粘性流場的非定常流動。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。First, a 2 - d unsteady viscous flow in a vibrating cascade is investigated under flow - structure uncoupled conditions
本文首先研究氣固非耦合條件下的振動葉柵內二維非定常粘性流動。分享友人