The ratio of mach number between lateral jet and free flow induce intensity degree of jet interaction . it has no obvious difference between two interactions with two types of nozzle exit configuration , rectangle and ellipse . the shock in front of jet results in increase of shock resistance and the jet ejection causes increase of base resistance 研究表明，侧喷流与来流马赫数之比是影响绕流场的重要因素，该值越大则侧喷干扰越强烈，矩形和椭圆形两种侧喷口形状对侧喷流场干扰波系的影响并不明显。
Efficiency of permeable pile dike is closely related to water - sand ratio in upstream flow , direction of the coming flow and seepage rate . this paper investigates mechanism and effect of flow control and aggradation using hydraulic modeling and theoretical analysis . it is shown that suitable seepage rate can help aggradation and suitable coming flow direction can help to govern the flow trend 研究结果显示，来流和来沙一定的条件下，透水率在适当的范围内有利于坝后缓流落淤，入流角在一定范围内对控导河势有明显作用，不同方案组合所对应的缓流落淤效果和控导河势作用具有一定的差异性。
Results show that the influence of mainstream reynolds numbers on heat transfer coefficience is little and the heat transfer coefficience raise with the increase of reynolds numbers . the influence of the position of holes on heat transfer coefficience is complex and correlate with the mainstream speed and the balde surface curvature . and the influence of blowing ratio on heat transfer coefficience is more great ( especially to stator ) , and show a complex relation to mainstream reynolds number and the position of holes 实验结果表明，不同孔位出流的换热由于孔排下游表面来流速度及叶片表面曲率的不同而有不同的规律，而主流雷诺数对叶片表面特别是压力面和前缘区域的换热系数比的影响较小，吹风比对换热系数影响较大(特别是导叶) ，并且随气膜孔位置和来流雷诺数的变化而情况复杂。
The testing of thermal environment in one urban residential district of changsha city in sep , 2002 is retrospected and concluded . variations of surface temperatures of the buildings various terries , urban streets in that day are discussed , inflow boundary conditions and partial thermal boundary conditions for thermal environment simulation are obtained . the thermal environment status in this region could be macro - discerned 2002年9月在长沙市某住宅小区进行了热环境测试工作，讨论了当天墙体表面温度变化、不同铺垫表面温度、街区测点温度变化等，获得了热环境模拟计算的来流边界条件及部分热边界条件，宏观定性地了解了该区域的当天热环境状况。
The mechanism of vibration induced by flow in the fluid - conveying pipe on offshore platform is analyzed , the physical model and mathematical model of unsteady , incompressible , viscous flows in vibrating pipes with different cross - sections are established , flows of pipes in different flow conditions with the insignificant stimulations are solved 分析了海洋平台输液管道流体激振机理，建立了等横截面、变截面输液管道流动的物理模型及数学模型，求解了不同形状管道，不同来流条件下，微小激励情况下的输液管内流的流场。
In this thesis a numerical model to solve the planear 2 - d depth - integrated flow ( dif ) has been established with irregular body - fitted mesh finite volume method and explicit maccormack predictor - corrector method and applied to the study of damming caused by a bridge pier under 14 working conditions varied with the combination of different pier shape . flow rate and contraction ratio 本论文采用非规则贴体网格有限体积法和显式maccormack预测-校正法求解平面二维水深积分方程，对明渠水流运动的数值模拟方法进行了研究，并且应用该数值模型计算了14种不同的桥墩体型、来流、收缩比的组合工况下的桥墩壅水问题。
Turbulence over flat wall is presented with the cfd software cfd ace ( u ) when given by various inlet boundary conditions , subgrid model and turbulence intensity under the two - dimensional circumstance . on comparing these outcomes with the experimental data , we can analyze the impacts that all these factors have on the development of flow boundary layer 采用计算流体力学软件cfdace ( u ) ，在二维情况下应用不同的进口边界条件、亚格子模型和来流湍流度对平壁流动进行大涡模拟，并将模拟结果与已有的实验结果进行对比，分析比较了这些因素对流动边界层发展的影响。
After redistributing its surface , three - dimensional body - fitted grid is generated by solving elliptic partial differential equations , namely elliptic grid generation . the program of computing n - s equation is used to get the desiring results of varieties of attack angles and velocities . it is concluded that the results accord with the aerodynamics rules , so the computing results will instruct the experiment to some degree 采用求解三维n - s方程的计算程序，计算了不同来流马赫数下和不同攻角下的布撒器的流场，并分析了来流参数对计算结果的影响，分析结果表明计算所得的结果符合空气动力学的基本规律，计算结果对实验具有重要的指导意义。
By use of grid - shaping skill and multi - grid solver , the flow - induced vibration of the fluid - conveying pipe in water is studied . the vibration mechanism of the fluid - conveying pipe in water is analyzed , the lift and drag acting on pipe in water are calculated . the results obtained are analyzed and compared to the experimental data referred to 首先对水下输液管道绕流涡激振动的机理进行了分析，然后，利用网格生成技术及多重网格法求得了输液管道在不同来流条件(雷诺数)下的横向升力系数及纵向阻力系数，最后对计算结果进行了分析，并将其与已有的间接实验结果进行了对比。
We also compute naca0012 airfoil and certain three - foil flow field separately with explicit 4 - step runge - kutta scheme and the implicit lu - sgs scheme and results show the latter is much more efficient . in the end , the capability of the algorithm to deal with multi - bodies in relative movements is demonstrated by a dropping drank problem . it turns out that the unstructured overset grid is valuable and promising in practical application 同时为了验证隐式lu - sgs格式的收敛效果,我们对基于单块网格的naca0012翼型与某三段翼型在不同的来流条件下,分别用带隐式的lu - sgs格式与显式的四步runge - kutta格式的解算器进行了数值模拟。
