equation n. 1.平衡,均衡;平均,相等。 2.【數(shù)學(xué)】方程式,等式。 3.【天文學(xué)】(時)差;均分,等分。 4.【化學(xué)】反應(yīng)式。 algebraic [linear, simple, quadratic, cubic, simultaneous] equation 代數(shù)(一次,一元一次,二次,三次,聯(lián)立)方程式。 differential equation 微分方程。 an identical equation 恒等式。 equation of light 【天文學(xué)】光行時差。 equation of payments 平均分期付款。 equation of state 【物理學(xué)】物態(tài)方程式。 equation of time 【天文學(xué)】時差。 personal equation 【天文學(xué)】觀測上的個人誤差。
New compressible fluid equations with unified convection diffusion type 統(tǒng)一的對流擴散型可壓縮流體力學(xué)方程與解法
The motion of water flow can be described by the dynamics fluid equation, such as 2d navier-stokes equation 水流的運動規(guī)律由一個淺水波方程,即一個二維的navier-stokes方程來描述。
Based on chapter 2, mathematic model to simulate solute movements in groundwater is established in chapter 3 . in order to gain the solution of fluid equation, adi method is used to calculate 對水質(zhì)方程,用有限元法求解,通過區(qū)域剖分和插值方法將描述溶質(zhì)運移的定解問題化為代數(shù)方程組進行求解。
(3 ) on basis of the result of equilibrium gravitating potential in a gravitational system, we explain the phenomenon of scale-free peculiar velocity in the universe by studying cosmic fluid equations . furthermore, we reexamine the issue in the approach of generalized statistical mechanics (3)我們根據(jù)多體引力系統(tǒng)中得出的平衡引力勢的形式,結(jié)合宇宙流體力學(xué)解釋了ostriker提到的宇宙中速度與尺度無關(guān)(scale-free)的現(xiàn)象,并在廣義統(tǒng)計力學(xué)范疇下進行了討論。