在圆柱体表面上用粘性条件确定流函数值。
The stream function on cylinder is determined by real viscous boundary condition.
接着,研究了人工势场法的一种延伸:流函数法。
Then an extension of APF method - stream function is researched.
非常规裂缝模式下的窜流函数是进行裂缝油藏精细数值模拟所必需的。
Interporosity flow function under unconventional fractured mode is essential to detailed numerical simulation of fractured reservoirs.
进而也可以得到内点的流函数及流速分布;并得到壁面上的压力分布。
Also the stream function and flow velocity of the internal points, and the distribution of velocity and pressure on the spillway are got.
采用流函数-涡量法对粘性不可压缩流体的二维瞬态流动进行模拟计算。
The stream function-vorticity method has been used to simulate two-dimensional transient state of incompressible viscous flow.
由构造速度间断线模型入手,建立正挤压的流线方程,以便求得是流函数。
The flow line function and the flow function for extrusion were obtained from the construction of velocity discontinuity lines(VDL).
对无芯棒缩管提出了流函数的数学模型,应用上限原理加以推导和数值运算。
The paper forword a mathematical model of stream function for sinkings with no internal mandrel and applies the upper bound approach principle to make further deduction and calculation.
接着用此返流函数计算了入口和出口流速分布改变所引起的捕集效率的改变。
Then the reentrainment function is applied to determine the collection efficiency response to the variation in gas velocity distributionsacross the precipitator entrance and exit.
绘制了速度矢量分布图,和流函数,涡量,两个分速度及压强的等值线分布图。
The diagram of distribution of speed arrow, constant lines of flow-stream function, vortex, two speed parts and pressure were studied.
本文计算了各种条件下绕圆柱的阻力系数、流函数涡量分布以及扰动流函数等。
The drag coefficient, the stream function and vorticity, the perturbed stream function are calculated under various conditions.
由流动的连续性引进了流函数,使流体动力学基本方程的未知量的个数减少一个;
Because of the continuity of the flow, the stream function is introduced and it makes that the numbers of the fluid dynamical basic equation is cut off one.
用流函数法确定了实心薄壁铝型材挤压变形动可容速度场、应变速率场及上限功率。
The flow function method is used to define the kinematically admissible velocity field, the strain rate field and the upper bound deformation power of solid aluminum shape with thin wall extrusion.
用流函数法确定了宽截面薄壁铝型材挤压变形动可容速度场、应变速率场及上限功率。
The flow function method is used to build the kinematically admissible velocity field, the strain rate field and the upper bound deformation power of wide section Aluminum shape extrusion.
采用了三维流函数法凸凹形辊棒材轧制过程的解析,得到了与平辊轧制时相同的效果。
The flow function method was applied to the process of screw rolling balls in the paper.
利用非定常流函数涡量方程数值模拟圆柱突然起动尾流涡旋的形成及周期性脱落过程。
The unsteady equations of stream and vorticity functions were used for numerical simulation on the process of the vortex formation and periodic shedding from an impulsively started circular cylinder.
在计算出结点的速度势或流函数的同时,可直接求出结点速度,提高了速度的计算精度。
The calculation of the velocity potentials or the stream functions of the joints leads to a direct solution to the velocities of the joints and the accuracy of the calculation is improved as well.
给出了一个以S2流面流函数为主控方程的具有弯曲叶片的涡轮级性能预测的通流计算方法。
A method for the performance prediction of axial-flow turbines with bowed and conventional vanes is presented, which USES flow function as control equation on S2 surface.
本文通过有限元法求解用流函数表示的拉普拉斯方程,进而计算轴流式机组的静态轴向水推力。
In this thesis, the Finite Element Method is applied to the solution of the Laplace equation formulated by means of stream function for the calculation of the static hydraulic thrust.
从自由涡运动方程出发,推导出管内流场的势函数和流函数方程,获得了管内流场的数学分析解;
Then basing on the free-vortex equation, potential equation and stream function of flow are achieved by mathematical analyze, and solving these equations gives flow fields.
文中论证了采用流函数法的优越性和适用性,并将流函数法计算结果和有限元法计算结果作了对比。
The advantage and suitability of stream function method are reviewed as well, in addition, results obtained with this method are compared with those from finite element calculations.
结果显示:涡管流函数是时间的周期函数,并被表征为一系列在涡核内均匀分布螺旋涡丝流函数的叠加。
The result showed that the stream function of vortex tube was expressed as the superposition of the stream functions of vortex filament within the vortex core.
在建立密闭式鸡舍机械通风系统气流运动方程的基础上,推导了由流函数和势函数表示的气流运动控制方程。
On the basis of the establishment of air movement equations in a confined ventilated chicken house, the governing equation, represented by the stream function and potential function, is deduced.
采用三维流函数法对棒材热连轧时的椭圆-圆孔型系统进行了力能参数的解析,其结果与实测结果符合很好。
Using three dimensional fluxional function, the rolling force and energy parameters of oval round pass sequences for hot continuous bar rolling were analyzed.
这一模型的特点只需要知道边界上的基本边界条件和自然边界条件,就可以得到边界上所需要求的流函数和水流速度;
The characteristic of this model is only to know basic and natural boundary condition, then the stream function and flow velocity required on the boundary are obtained.
采用流函数方法,对螺旋孔型斜轧过程进行了分析,得到了轧制过程力能参数的计算公式,并进行了实例计算和比较。
The flow function method was applied to the process of screw rolling balls in the paper. The computing formulas of rolling power and force were given. Finally the computing example was presented.
在此基础上利用流函数建立了变形区速度场,并利用计算机对变形能进行求极小值,得到了变形区的速度分布及拉拔力。
Based on the assumption, the computer was used to calculate the minimum deformation energy, and the speed distribution in the deformed area and the drawing force were gotten.
讨论了曲率和挠度对二次流动、流函数等值线和轴向速度的影响,研究了不同曲率和挠度螺旋管道内流量与压力梯度之间的关系。
The effects of curvature and torsion on secondary flow, isoline of stream function and distribution of the axial velocity of flow were discussed.
研究表明,数值结果和实验结果比对良好,这种基于势流函数理论的数值模型能够有效模拟水中岩石坠落激发表面波的生成过程。
Comparisons show that the experimental and numerical results are in good agreement, and the numerical model can be used to simulate the wave generation due to the submarine rock falling.
文中给出了流函数方程及边界条件的坐标转换形式和离散格式,采用了强隐式(SIP)迭代法,分别对具有弓形和半弓形突体的直管进行了计算。
In this paper, the transformed forms of the flow function equation and boundary conditions and their difference expressions are given, and Strongly Implicit Procedure (SIP) iteration is used.
文中给出了流函数方程及边界条件的坐标转换形式和离散格式,采用了强隐式(SIP)迭代法,分别对具有弓形和半弓形突体的直管进行了计算。
In this paper, the transformed forms of the flow function equation and boundary conditions and their difference expressions are given, and Strongly Implicit Procedure (SIP) iteration is used.
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