本文基于弯道超高现象以及弯道流速计算的改进,得出了一种较为实用的泥石流沟床糙率计算方法。
On the basis of freeboard phenomenon in curve way and the improvement of curve flow velocity, this paper gets a useful calculating method of bed roughness.
最后,通过给定的参数计算了旋转库特流切向速度分布的数值解,并绘制了相应的切向速度分布曲线。
Finally, the numerical solutions of the azimuthal velocity were calculated and the corresponding distribution curves were draw out by assuming some parameters of the flow.
这一模型的特点只需要知道边界上的基本边界条件和自然边界条件,就可以得到边界上所需要求的流函数和水流速度;
The characteristic of this model is only to know basic and natural boundary condition, then the stream function and flow velocity required on the boundary are obtained.
利用TSI-IFA300热线风速仪系统对致动器喷口外的流场进行了测量。
The measurement of velocity of the jet flow field is carried out with the TSI-IFA300 constant temperature anemometer.
随着清洗槽内的叶片转动,清洗槽内的流场分布发生变化,相应的出水口附近的速度也发生变化,这样直接影响着清洗性能。
When the vanes rotates in the cleaning trough, they change the distribution of the flow field, and the velocity distribution near the outlet, so the cleaning property change directly.
大小和速度的液滴不断变化的期间,夹带和加速度在炎热的气体燃烧流。
The size and velocity of the droplets change continuously during their entrainment and acceleration in the hot gas combustion flow.
为了研究离心不稳定对线性增长率的影响,本研究中基本流的周向速度可以是离心稳定的,也可以是离心不稳定的。
To investigate the roles of centrifugal instability on the linear growth rate of the flows, the azimuthal velocity of the basic flow is either centrifugally stable or unstable.
近壁对总压测量影响不大。速度梯度和近壁对测量误差的影响还与来流方向有关。
The effects of the velocity gradient and wall-proximity on the measuring errors are related to the flow direction.
分析了偏心距和旋转对于二次流以及轴向速度分布的影响,同时给出了平均摩擦系数和壁面摩擦力的分布。
Effects of eccentricity and rotation on the secondary flow and maximal axial velocity were analyzed, and the average friction factors and the wall friction distributions were also presented.
利用激光测速技术测量了平板水平放置时气泡流最外缘处的水平速度及厚度。
The horizontal velocity at the outermost edge and thickness of bubbly flow are measured by laser Doppler velocity technique.
建立了多相流模型与算法,给出了云雾区的速度场与燃料浓度分布。
The multiphase flow model and algorithm was setup. The velocity fields and distribution of fuel concentration are given.
本文通过运用CFD技术数值模拟舰船的运动,来求解各种舰桥风速和风向下的甲板流场。
At the different velocity and direction of wind, the flow field on warship deck can be calculated by CFD technique.
分析了粒子速度滞后对压力——时间曲线和燃烧室流场的影响。
The effect of particle velocity lags on pressure-time curves and flow field in chamber is analyzed.
计算所得的桨叶排出流的三维速度分布与实验结果大体一致。
The calculated three-dimensional velocity distribution of impeller discharge flow basicly meets the experiment results.
分析已有实验数据表明:在温度场存在的气粒两相流中,两相流场的湍流强度和湍动能将会增加而横向速度将会减小。
The results showed that the turbulence intensity and turbulent energy of the two-phase flow increased while the transverse velocity decreased in the presence of the temperature difference.
摩擦阻力的变化趋势与速度类似,在产生逆向流处出现局部极小值。
The variation of local friction coefficient is similar to velocity and local minimum value occurred in reverse flow area.
提出了一种实用的带送物料流位移和速度检测方法。
A practical measuring method of the displacement and velocity of the material flow is proposed.
模型中充分考虑了转动附加惯性力对降膜流场中液膜厚度、速度、温度和浓度分布的影响。
The effects of swaying additional inertia forces on the distributions of film thickness, velocity, temperature and concentration of falling film flow field were fully considered.
本文利用张量分析工具,对任意流面上的位势流,建立速度图方程,为解决一些特殊流动问题,提供一个分析方法。
For potential flows on any stream surface, the equation of the velocity graph is set up by tensor analysis, and thus it provides an analytic method for solving some special flow problems.
根据动量叠加原理对多股等羽流的相互作用进行了研究,定义了三个速度修正系数和流量修正系数。
Researches the interaction of the multiple equal plumes based on the principle of momentum congruence. Defines three velocity correction coefficients and a flow rate correction coefficient.
双向液体液流运动,大大提高了处理液之间的反应速度,提高了匀流染色的上染环境。
Bidirectional movement of fluids greatly improves the reaction velocity between treating liquid, as well as the environment for uniform flow dyeing.
该方法基于势流理论,考虑门桥的漕渡速度和水流速度,通过坐标变换,确定了速度势的适定性条件。
Based on potential flow theory, current velocity and ferrying velocity is considered. Confirmative conditions of the velocity potential are established by means of transforming coordinates.
试验风机的气动性能试验和内部流场可视化与出口流速分布试验的结果彼此吻合。
The performance test results of test fan are in agreement each other with those of internal flow visualization studids and exit velocity distribution test.
泥石流泥痕深度是一个通过勘测调查获取的重要参数,它直接关系到泥石流运动流速、冲击力等特征参数的定量计算。
As an important parameter usually decided by field survey, mud depth of debris flow is directly related to quantitative calculation of velocity and impact forces.
利用ANSYS的图形处理功能,得到速度流场的分布图和压力场的分布图。
By taking the advantage of figure process function of ANSYS, Velocity Flow Distributing Picture and Pressure Distributing Picture can be attained.
讨论测量细颗粒质量流率的方法,以此为基础研究了细颗粒藏量、流化气速、反应气速及固定床的空隙率对细颗粒质量流率的影响。
Based upon above research, effects on the mass flow rate of powders of inventory of powders, fluidization gas velocity, reaction gas velocity and void of packed bed are discussed e.
根据泥石流运动数值模拟取得的泥石流流速和流深分布特征,建立了泥石流危险性动量分区模型。
A momentum model of debris flow risk zoning is set up according to the distribution of debris flow velocity and depth from the numerical simulation.
高水头、大流量泄洪洞内高速水流问题主要问题之一是水流空化引起过流表面空蚀。
One of the main problems of spillway tunnel with large discharge and high velocity flow is the cavitation damage.
通过对管道流温度分布的分析,得出由温度分布计算管涌流速的公式。
Through the analysis of temperature in piping flow, a piping velocity equation is proposed.
通过对管道流温度分布的分析,得出由温度分布计算管涌流速的公式。
Through the analysis of temperature in piping flow, a piping velocity equation is proposed.
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