流体力学

In this dissertation, by applying the ideas of the mathematics mechanization, under the instruction of " AC=BD" theory of Professor Zhang Hongqing, we consider some methods seeking exact solutions to nonlinear partial differential equation arising from the fields of elasticity, fluid mechanics, aerodynamics, plasma physics, biophysics and chemical physics.

本文根据数学机械化的思想，在导师张鸿庆教授"AC=BD"理论的指导下，研究在弹性力学、流体力学、空气动力学、等离子体物理、生物物理和化学物理等现代科学技术中引出的非线性偏微分方程求精确解的方法。

The flow field around a simplified fastback car with rear view mirrors and aerodynamic noise at some receiving point were numerically simulated and analyzed using CFD software FLUENT.

应用计算流体力学软件FLUENT对带后视镜简化直背式轿车外部流场及车外某接收点处的气动噪声进行了数值计算和分析。

The outflow fields of a simplified fastback car were studied with numerical methods of different turbulence models and diflerent discretization scheme s with the CFD code STARCD.

以简化的直背式轿车模型为研究对象，以商用计算流体力学软件STAR-CD为工具，应用不同的湍流模型和离散格式对轿车外流场进行了数值模拟，通过与试验结果的对比，研究了湍流模型和离散格式对直背式轿车外流场数值计算精度的影响，同时对SIMPLE算法及其两种修正方法PISO和SIMPISO算法的计算精度进行了比较。

Numerical Simulation of Flow Field in Pulsating Fluidized Bed Under special entry conditions, the CFD is used to simulate the three-dimension fluidized bed with different oscillation intensity and frequency in order to research the effect of sound oscillation on flow field in the fluidized bed. The results indicate that the sound oscillation can make the distribution of the flow field more uniform and can promote the heat and mass transfer.

脉动流化床流场模拟在特定的入口条件下，应用计算流体力学技术对三维流化床在不同振动强度、不同频率扰动作用下的流场进行模拟，得到声波扰动对流化床流场分布的影响，结果表明声波振动可以使流化床内的流场分布更加均匀，促进热质传递。

Chapter Ⅳ and Chapter Ⅴ describe the operation characteristics and the gas-solid hydrodynamics of the cross-flow moving granular bed filter.

第四、五章分析了气固错流移动颗粒床过滤器的操作特点和流体力学特点。

In chapter Ⅴ, the establishment of the mathematical model based on experimental data of preceding chapter and the analysis of the hydrodynamic characteristics for the cross-flow moving granular bed filter are described.

第五章为数学模型的建立和流体力学特点分析。

In recent years, more efforts has been directed to the researches on high order accuracy and high resolution fini...

高精度高分辨率格式的研究在近年来一直是计算流体力学中的前沿研究课题。

With these points,this topic will base on Finite Element Analysis and Research ofFlux detection with Press use ANSYS Flotran method.

本文以压差式瞬态流量测量为目标，围绕实现压差式测量中多点压力传感器设置间距问题进行了以下几个方面的工作：利用流体力学的相关理论，详细分析了利用压力传感实现瞬态流量测量的机理，推导了两点和三点式压差测量瞬态流量方法的相关公式，并对影响测量的相关因素进行了分析。

This paper discusses this topic under consideration of the group structure of finite difference scheme in traditional fluid dynamics.

这种趋势的背景源于流体力学问题本身的强非线性，一般经典的数学手段难于处理，需要引入能对付大范围强非线性问题的数学手段。

It has been stated by the guru of "fishlike" swimming,"the most hydrodynamically perfect position that your body can be in is balanced, lying on your side, one arm extended for length - not so very different from the way fish do it."

这一切起源于'类似鱼的'游泳指导。"最符合流体力学的身体姿态是保持平衡，侧躺，一只手臂尽可能前伸-和鱼的做法没什么区别。"

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。