Based on the Navier-Stokes equations in conservative form derived with respect to nonorthogonal curvilinear coordinates and nonorthogonal velocity components, the numerical method for solving 3D viscous flow has been discussed.

本文基于非正交曲線坐標(biāo)與相應(yīng)的非正交速度分量下導(dǎo)得的守恒型N—S方程，討論了求解三維粘性流動(dòng)的數(shù)值方法，計(jì)算中顯式時(shí)間推進(jìn)算法與Baldwin—Lomax湍流模型被采用，應(yīng)用本工作發(fā)展的程序，作為算例計(jì)算了一個(gè)沿徑向非等截面環(huán)形葉柵的三維粘性流場(chǎng)色色色一区二区三区，得到了諸如三維壓力分布，總壓損失分布以及十分清晰的二次流動(dòng)圖景等豐富的流場(chǎng)信息国产精选白浆视频一区二区。

A three- dimensional turbulence model in non-orthogonal curvilinear coordinates is proposed to investigate the impacts of vegetation on channel morphology. The model includes vegetation-induced drag force and vegetation density in the control equations to describe the effects of vegetation on flow structure, and solves sediment continuity equation to compute channel geometry.

本文建立曲線坐標(biāo)系下的三維湍流模型研究水生植物對(duì)河道形態(tài)的影響免费观看黄a一级视频孕妇，在水流控制方程中加入植物阻力項(xiàng)和植物密度項(xiàng)來描述水生植物對(duì)水動(dòng)力特性的貢獻(xiàn)，通過泥沙質(zhì)量守恒方程求解河道變形首页国内自拍偷拍视频，在適體網(wǎng)格中求解模型的控制方程色色色色色色色色色吧。

An optical system with refraction and total internal reflection was proposed according to the luminous characteristic of LED and the law of energy conservation. The ordinary differential equations satisfying the spots on the contour curve of TIR refractive and reflective planes were established. The coordinates of points on profile curves were obtained by solving these ordinary differential equations using Runge-Kutta method. The profile curves were acquired by curve fitting of the coordinate spots with software UG, and then TIR model of the projector and data of the surface shape suitable for NC manufacture were obtained.

根據(jù)LED的發(fā)光特性以及能量守恒定律選擇采用折射全反射光學(xué)系統(tǒng)，通過建立TIR折射面及全反射面輪廓曲線上的點(diǎn)所滿足的常微分方程日本女优一区，利用RungeKutta求解常微分方程得到輪廓曲線上點(diǎn)的坐標(biāo)成年熟美女一级黃色A片，再在UG中對(duì)坐標(biāo)點(diǎn)進(jìn)行曲線擬合得到輪廓曲線，進(jìn)而得到TIR模型及適合數(shù)控加工的面形數(shù)據(jù)在线观看黄A片。

According to the kinetics of decarburization reactionand the theory of mass conservation,the mathematical model of RH decarburizationprocess has been established.

根據(jù)脫碳反應(yīng)動(dòng)力學(xué)和質(zhì)量守恒原理建立了RH-MFB 脫碳數(shù)學(xué)模型久久国产精品嫖妓。

And/or we advanced formulized definition about concept of conservation of information, and information essence definiens: information is a set of mark of attribute of thing.

及我們提出的"信息守恒"概念與公式化的定義，與"信息是事物及其屬性標(biāo)識(shí)的集合"的信息實(shí)質(zhì)定義国产一页。

Moreover, Democritus argued that the quantity of matter is always constant, leading to proposals for both the indestructibility of matter and its conservation.

另外亚欧刺激视频在线播放，他還提出，物質(zhì)的數(shù)量總是恒定不變的香蕉一级毛片视频，所以產(chǎn)生了物質(zhì)永不滅和物質(zhì)守恒的說法日韩欧美爱爱一区二区。

Conservation and derivation of the mathematical model.

數(shù)學(xué)模型的引出和守恒。

Two integral equations are derived from the equation of conservation of current.

從電流守恒條件出發(fā)久久噜天天噜日日噜，得到了兩個(gè)積分方程www.hbxiaonong.com。

Derived from energy equation and R.

從能量守恒的角度，運(yùn)用Ra片一区二区在线免费播放。

A vivid example of this: in the two deuterium nuclei polymerization into a helium-4 nucleus, it seems quality is not conservation, is the quality of helium-4 nucleus does not mean that two of the deuteron and quality.

這個(gè)例子生動(dòng)地說明：在2個(gè)氘原子核聚合成1個(gè)氦4原子核時(shí)免费毛片一区，似乎質(zhì)量并不守恒国产视频33区，也就是氦4原子核的質(zhì)量并不等于2個(gè)氘核質(zhì)量之和。