boundary layer equations造句
例句與造句
- this paper has established a class of mathematics model about prandtl boundary layer problem . compare to navier-stokes equation, prandtl boundary layer equation has important simplicity and easier
普朗特邊界層方程和納維??斯托克斯方程相比，有了重大的簡化。 - in this paper i has applied inverse operator method to the solution of the nonlinear boundary layer equation on base of the former knowledge, and have gotten the approximate analytic solution
本文把逆算符方法應(yīng)用到了普朗特邊界層方程上來，并且求出了逼近解析解。 - actually, n-s equation has three unknown functions u, v, p and three equations, now prandtl boundary layer equation has two unknown functions w, vand two equations only, and viscosity terms has partly reduced
原來有三個未知函u，v，p及三個方程，現(xiàn)在只有兩個未知函數(shù)u，v及兩個方程，且粘性項(xiàng)也少了一些，這些都是簡化的地方。 - the creative points of the thesis are as follows : （ 1 ） the thesis establishes turbulence boundary layer equation that contains centrifugal force in flow field of two-dimension boundary layer of centrifugal pump and gives its solution
本文創(chuàng)新之處是：（1）在離心泵葉輪二維邊界層流場內(nèi)，建立了包含離心力的湍流邊界層方程并給出了近似解。 - but on the other hand, should also see, boundary layer equation as before is a nonlinear differential equation set of two steps, the nonlinear nature of equation is still retained, so solving this system of equations on mathematics untie is fairly difficult
但另一方面也應(yīng)看到，邊界層方程依舊是一個二階的非線性偏微分方程組，方程的非線性的性質(zhì)仍然保留，這使得在數(shù)學(xué)上求它的解還是相當(dāng)困難的。 - It's difficult to find boundary layer equations in a sentence. 用boundary layer equations造句挺難的
- on the basis of prantel boundary layer idea, wind sand fluid of irreducible rare phase as research object, by the foundation of general equation of wind sand fluid, in the condition of basic hypothesis, the boundary layer equation of car roof surface is set up and the boundary condition the fluid slippage character in solid wall surface is given
摘要基于普朗特的邊界層思想，以不可簡化成稀相的風(fēng)沙流體為研究對象，以風(fēng)沙流的一般方程為基礎(chǔ)，在基本假設(shè)的條件下，建立了高速轎車車身頂部過流表面的邊界層微分方程并給出沙流在近壁表面以滑移為特徵的邊界條件。