正交曲线坐标系 meaning in English
orthogonal curvilinear coordinate system
Examples
- Numerical simulation of two - phase turbulent combusti on flow in an afterburner under generalized nonorthogonal curvilinear coordinate systems
非正交曲线坐标系数值模拟加力燃烧室湍流两相流燃烧 - Abstract : variations of flow pattern , flow velocity in deep poo l and side bar , mainstream thread , and water surface , caused by excavation project , are investigated by two - dimensional mathematical model in an orthogonal curvili near coordinate system . the change of bed - load transport rate , and redeposition r ate are predicted . the influences of the excavation project on navigation are ana lyzed . grid - type and flat - type excavation alternatives are proposed and discuss ed
文摘:采用正交曲线坐标系下的河道平面二维数学模型，研究了嘉陵江何家碛边滩采砂后河道流势、流态、滩槽流速、主流位置、水面高程及比降的变化规律，预测了采砂方案完成后卵石推移质输沙率变化及其对航道的影响，并对格形开挖和平整开挖方案进行了比较分析 - Finally , in orthogonal curvilinear coordinate systems numerical model is established and applied in the yangtze river estuary in which some regulation plans are taken include submerged jets and groins . verifications are also done to verify water level and velocity . flow fields are computed for the analysis of effect of regulation engineering on the whole water area
最后，应用正交曲线网格技术，建立了正交曲线坐标系下广义浅水方程的计算模式，将之应用于长江口深水航道整治工程的流场计算，进行实测水位、流速验证和流场模拟。 - The expression of the improved boussinesq equations in curvilinear orthogonal coordinate system is derived . on the basis of poission equation conversion , the methods to generate curvilinear orthogonal grids are introduced , and then the two - dimensional numerical wave model under curvilinear orthogonal coordinate system is established
推导了正交曲线坐标系下的改进型boussinesq方程，以poission方程变换为基础，建立拟合正交曲线坐标系下正交曲线网格的生成方法，进而建立正交曲线坐标系下的二维波浪模型，提高了模型对复杂地形的适用性。 - Based on the review , the fluid flow and heat transfer in the curved circular and rectangular pipes have been researched by employing perturbation method and numerical simulation with a physical model under the rotational orthogonal curvilinear coordinate in a rotating curvilinear pipe with multi - parameters . we firstly analyzed the fully developed fluid flow and heat transfer , mixed convection heat transfer , the development of flow and heat transfer in the inlet in different cross section ( circular , elliptical , annular and rectangular crossection ) . the variations of the secondary flow , axial velocity , distribution of temperature , the friction force on the wall , the ratio of friction factor as well as the nusselt number with different dimensionless parameters had been examined in detailed
本文在总结和分析了一个世纪以来有关曲线管道流动和换热特性的研究成果的基础上，以旋转正交曲线坐标系统下的多参数旋转螺旋管道中的对流传热为物理模型，通过摄动方法和有限体积法，首次对各种截面(圆截面、椭圆截面、环形截面、矩形截面)旋转曲线管道内充分发展流动的流动结构和传热特性(包括耦合对流传热特性)以及旋转曲线管道开口段发展流动的流动结构和换热特性进行了系统的数值模拟和理论分析，详细讨论了各种无量纲参数对管道内轴向速度分布、二次流结构、温度分布、壁面摩擦力、摩擦系数比以及管道nusselt数的影响，获得了若干创新性成果。