查询词典 vortex flow

Based on the analysis of physics course of heat transfer, the mathematical model of single-phase flow in the rectangular narrow channel is proposed. And the boundary conditions are given to get the unique numerical result. The finite volume method is used to found the discrete scheme of equations. According to the flow of SIMPLER arithmetic, the computing program is developed and the correctness of program is validated.Then the program is used to solve the problem of flow and heat transfer in rectangular narrow channel.The stable two dimension velocity and temperature fields in rectangular narrow channel and plate fuel are obtained.

在明确窄缝流道及燃料板换热物理过程的基础上，建立了描述矩形窄缝内单相流动与换热问题的数学模型，并给出了合理的边值条件；然后利用有限容积法对方程进行离散，根据SIMPLER算法的流程编制了模型求解程序；在验证程序正确性的基础上，对矩形窄缝流动与换热问题进行了求解，得到了矩形窄缝流道和板状燃料元件内部温度场、速度场的二维分布。

The flow considered is a combination of plane Poiseuille flow with a flow oscillating periodically and its instability is found for a spedal initial value of a developing wave due to continuous oscillating source.

本文研究平面Poiseuille流与其垂向振荡流的组合流动系统。对于连续振荡源导致的波包演化，该系统存在不稳定性。

With several simulations of the incylinder flow from intake stroke to compression stroke, the structure of flow field and the pattern of flow change are disposed clearly.

几种模型机进气与压缩过程的多维模拟计算清楚地揭示了缸内流场的结构及演变规律。

The test results showed that when the cycle water flow was 65m^3/h and the oxygen flow was 1, 2,……, 10L/min, the relationship between the dissolved oxygen and oxygen flow in the water was y=0.1009χ^2+0.0594χ+5.9588 (r=0.9927). According to the mass balance principle, the maximum oxygen utilization rate of oxygen cone was calculated at 84.56%. Under the condition of the maximum oxygen utilization rate of oxygen cone, according to the rate of Nile tilapia oxygen consumption, the number of oxygen cone was projected in industrialized fish farming system. It provided the basis for oxygen supply system design in industrialized fish farming system.

结果表明，在循环水流量为65 立方公尺/h，水温24.5℃，氧气流量为0， 1， 2，……，10 L/min的条件下，溶氧与氧气流量回归方程为y=0.1009χ^2+0.059 4χ+5.958 8(r=0.9927)；根据物料平衡原理，推算出氧气锥的最大氧气利用率为84.56%；在最大氧气利用率的条件下，依照尼罗罗非鱼的耗氧率计算模式，推算出工厂化养鱼系统需配置氧气锥的台数。

A new method to judge the efficiency of different dehumidifiers by the partial pressure of the gas is presented. Dehumidifiers with direct flow, cross flow and counter flow are analyzed.

本文针对除湿器的除湿原理，提出了一种以水蒸汽分压力差作为判据的方法，分别对顺流、逆流和叉流三种型式的除湿器进行了理论分析，同时建立了等温吸收的数学模型。

The pattern could be described as the fluids flow separated from the rearward edge of the strips; the fluids flow reattached to the cylinder surface behind the edge; the fluids flow reseparated from the cylinder surface downstream of the cross section of the cylinder.

为精细地描述台阶附近近壁特性，采用分区—耦合方法建立了适体正交曲线网格，采用低雷诺数的k-ε模型作为湍流模型，在非交错网格上建立起差分关系式，引用简化的SOLA算法对流场进行了数值模拟。

Measurements were taken for the solids volume fraction distribution on different cross sections under various solids flux and fluidization air flow rates, and the flow characteristics of the gas-solids flow in the bed were acquired.

在颗粒流量和流化风量变化的情况下测量了不同截面固体颗粒体积份额平均值的变化，得到了下行床内气固流动规律。

The flow control strategy of DBFC builds on virtual cut-through switching and credit-based flow control mechanism and analyzes the credit value of port and the routing information of the packets to realize the point-point flow control.

该流控策略建立在虚跨步切换和信约流控机制之上，通过分析端口信约值和路由信息实现点点间的流控。

Because of the asymmetry of the inlet structure and the unstable characteristics of the swirl flow,the spinning center of the gas flow deviated from the geometrical center of the cyclone,which resulted in the asymmetry of the flow field and the change of the three dimensional velocity components.

蜗壳式旋风分离器入口结构的非轴对称以及气相旋流的不稳定性造成了气流的旋转中心与旋风分离器的几何中心不重合，从而导致了气相流场三维速度的非轴对称分布以及速度分量由于基准不同而产生的大小和方向变化。

The real tangential velocity fluctuation indicated that there existed an instability of swirling flow in the cyclone.This instability resulted in the rotation center of the swirling flow deviating from the geometric center of the cyclone,which produced the quasi-periodic oscillation of swirling flow and gave the real tangential velocity fluctuation.

瞬时切向速度的变化反映了旋风分离器内旋转流的不稳定性，这种不稳定性导致了旋风分离器内旋转流的旋转中心与几何中心不重合，旋转中心围绕着几何中心摆动，由此造成了瞬时切向速度随时间的类周期的波动变化。

What was it that made you want to change sider ?

是什么使你临阵倒戈？

I don't know what he wants, but let's play along with him.

我不知道他要干什么，可我