Numerical Simulation for Atmospheric Diffusion Wind and Concentration Field in Mountain Area

The Application of Atmospheric Diffusion Model in the Emergency Meteorological Service

大气扩散模型在气象应急保障中的应用

Programming of calculation system of a atmospheric diffusion model

大气扩散模式计算系统程序编制

Both the outlet diffuser and the grid were applied in engineering.

这两项技术已在工程中成功地推广应用。

Under the environment of Visual C++ 6.0, the parametric 3-D modeling software PCAD-3D is developed, which includes column blade, curved blade, double channel impeller, volute and radial vaned diffuser, etc.

在Visual c++6.0编程环境下，开发了扭曲叶片、圆柱叶片、双流道叶轮、蜗壳和径向导叶等的参数化三维造型软件PCAD-3D。

It is not only used to design centrifugal pump impeller and diffuser, but also used to design non_clogging pump impeller and diffuser, radial diffuser, space diffuser, etc.

它除了可进行清水泵的叶轮、蜗壳水力设计外，还可设计无堵塞泵的叶轮、蜗壳以及径向导叶、空间导叶等水力件的水力设计。

The numerical results indicate that the separation flow in axial and radial diffuser was severely, especially in the axial diffuser, which could decrease the efficiency of this centrifugal compressor.

在堵塞状态时径向扩压器和轴向扩压器中都存在不同程度的分离，尤其是轴向扩压器中分离现象更为严重，这些都造成了不同程度的气流损失，导致了效率的降低；

In the whole flow range, the impeller operates under subsonic condition and the radial diffuser operates under transonic condition, thus the choked mass flow rate is determined by the throat area of the radial diffuser.

整个特性线范围内离心叶轮基本在亚音速情况下工作，而径向扩压器是在跨音速条件下工作，离心压气机整机的最大流量是由径向扩压器的喉部面积决定的；

NUMERICAL CALCULATION OF SUBSONIC TURBULENT RECIRCULATING COMPRESSIBLE FLUID IN A CONICAL DIFFUSER Computer Simulation of Complex Turbulent Flow in a Conical Diffuser with Outlet Pipe

有分离流的亚声速圆锥扩压器内紊流可压缩粘性流的数值计算带后续管的渐扩管路内复杂紊流的计算机仿真

Numerical calculation of subsonic compressible turbulent flow in a conical diffuser

亚声速圆锥扩压器内紊流可压缩流动的数值计算

Study on Near-wall Characteristics of the Internal Turbulence in a Conical Diffuser

对锥形渐扩管内紊流近壁特性的研究

Computer Simulation of Complex Turbulent Flow in a Conical Diffuser with Outlet Pipe

带后续管的渐扩管路内复杂紊流的计算机仿真

A conical diffuser has been widely used in mechanical and mine engineering.

机械和矿山工程中广泛使用锥形渐扩管。

Study on numerical simulation and efficient numerical method of complex turbulent flow in conical diffuser

复杂压力梯度流动的管路内紊流计算机仿真及高效算法研究

Study on Diagnostic System for Numerical Simulation of Turbulent Flow in a Conical Diffuser

锥形渐扩管内紊流计算机仿真诊断系统的研究

Research on Velocity of Gases in the diffuser of Steam Eject Pump

蒸汽喷射泵扩压器渐缩段内气体速度的研究

An optimal hydraulic design method of diffuser for helico-axial multiphase pump

螺旋轴流式混输泵导叶水力设计的一种选型方法

The curve and surface of the bend-shaped diffuser of centrifugal pump are structured by NURBS ( Non-Uniform Rational B-Spline) method in the design process.

论述了采用非均匀有理B样条（NURBS）方法，在离心泵弯曲形扩散管设计过程中构造曲线和曲面；

Study on CAD of Bend-Shaped Diffuser of Centrifugal Pump Based on NURBS

基于NURBS的离心泵弯曲形扩散管的cad研究

The Calculation and Analysis of Multistage Diffuser in Centrifugal Pump Using CFD

多级导叶式离心泵导叶内部CFD计算分析

Study on computer aided interaction design for diffuser of centrifugal pump

离心泵扩散管计算机辅助交互设计方法研究