| 1. | The relational formula between axial gap and radial gap and relational formula with considering centrifugal thrust effect was solved 并应用连续方程和水泵势扬程方程式,求出了间隙?漏量是其间隙几何参数及泵扬程的函数关系式。 |
| 2. | The relatively simple mass continuous equation is used to calculate vertical velocity , and use radial velocity projection relation of dual - doppler radar to retrieve the three - dimensional wind field 采用较简单的质量连续方程求取垂直速度方案,利用两部雷达的径向速度投影关系反演大气三维风场。 |
| 3. | Based on the mass conservation law and momentum equations of incompressible fluid , the general equation for fluid flow in marching solution is established and the marching solution for flaid flow in manifolds is presented 摘要以不可压流体的连续方程和动量方程为基础,将分支管流速作为未知量,建立推进算法的基本方程和计算方法。 |
| 4. | Two methods are used in the paper . one is element - method modeling based on the flow continuity equation and force balance equation . the other is simulating with amesim , an advanced modeling and simulating software of hydraulic system 仿真采用的主要方法是以流量连续方程和力平衡方程为基础采用部件法建模,并应用高级液压系统建模仿真软件amesim进行了仿真验证。 |
| 5. | 2 . dynamic meteorology : equations of motion ; geostrophic , ageostrophic and gradient winds ; thickness and thermal wind ; continuity equation ; stream function ; vorticity equation ; divergence equation ; omega equation ; rossby wave ; ekman layer ; numerical weather prediction 2 .动力气象学:运动方程地转风非地转风及梯度风厚度及热成风连续方程流函数涡度方程辐散方程奥米茄方程罗斯贝波埃克曼层数值天气预报。 |
| 6. | A variety of mathematical models based on continuous equation and the momentum equation and many solutions partial differential equation value computational method in the open canal turbulent flow solution , still could widely apply and yield the satisfactory result 但是,非稳态的navier - stokes方程对于明渠水流的瞬时运动还是适用的,以连续方程和动量方程为基础,建立的各种数学模型和许多求解偏微分方程的数值计算方法在明渠紊流的求解中仍能广泛应用。 |
| 7. | Abstract : the wave equation , continuous equation for tower structure and the method of characteristic line , are derived in this paper , and variation of structure modulus of elasticity with strain and vibration frequency being considered , state of stress on the structure affected by earthquake wave is analyzed 文摘:推导了高耸结构(杆件)波传播运动方程、连续方程和特征线求解方法.并考虑结构弹性模量随应变及振动频率的变化,对地震波作用下结构的受力状况进行了分析 |
| 8. | Abstract : based on flow - varying characteristics of thixotropic casting semisolid alloys , the flowing state of the semisolid alloy under the procedures as filling up the mould by means of thixotropic casting being performed , is simplified to the flow which features in an equal temperature layers 文摘:根据触变铸造固态合金的流变特性,将半固态合金在触变铸造充型过程的流动简化为均相等温层流流动,并在此基础上建立了连续方程、动量方程和守恒标量方程,开发了适用于半固态合金触变铸造充型过程的数值模拟系统。 |
| 9. | The research aims at the demonstration and the mend of the design on the new purifier and presents a calculation method for solving the two - phase flow in fluid machine by the finite element method . after analyzing the two - phase flow in the new purifier by means of the continuum model , poisson equation , navier - stokes equation and continuous equation are derived and solved by using the finite element method . the solution on pressure , velocity and particle concentration simulates the departure well between oil and water , which proves the accuracy of the design on the new purifier 本文采用两相流连续介质模型,由两相分离流动理论得到控制方程,采用chorin的直接速度-压力mac法的思路,对新型油水分离装置内油水两相流动作了细致的分析,同时首次把科氏惯性力引入两相流模型中,进行分析和计算,将研究扩展到三维,并用有限元法分别解poisson方程、 n - s方程、连续方程的方法,对流场内压力场、速度场、浓度场进行了分析和计算,较好地模拟了新型油水分离装置内油水分离的现象,证明了设计方案的正确性。 |
| 10. | Abstract : according to the characteristics of solid - liquid two - phase flow , the equation of motion and the equation of continuity for hammer computation are deduced in this paper . the equations are applied to analyze the effect of different prevention deveces used to relieve water hammer pressure in pipeline transport with displacement pumps . it is concluded that the air vessel and pressure relief valve are better than other devices 文摘:本文针对固液两相流的特点,建立了水击计算的运动方程及连续方程,并采用新方程对矿山常采用的容积泵输送中使用的储气罐、泄压阀、缓闭逆止阀等减缓水击压力的防护措施进行了计算分析,得出储气罐、泄压阀减压效果最好的结论。 |