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.
收集和评估这些信息之后,我就帮助其他科学家一起预测熔岩接着将往何处流,流速是多少。
Having collected and evaluated the information, I help other scientists to predict where lava from the volcano will flow next and how fast it will 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.
结果表明:玻璃屋入口流速对室内及多孔墙内空气的温度场与流场有较大的影响。
The result shows that the inlet velocity has significant influence on the temperature field and flow field in glass house.
收集和评估这些资讯之后,我就帮助其他科学家一起预测熔岩接着将往何处流,流速是多少。
Having collected and evaluated the information, I help other scientists to predict where lava from the volcano will flow next and how fast it will flow.
接着用此返流函数计算了入口和出口流速分布改变所引起的捕集效率的改变。
Then the reentrainment function is applied to determine the collection efficiency response to the variation in gas velocity distributionsacross the precipitator entrance and exit.
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.
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.
潮汐、风暴潮对波浪的作用是通过其产生的不定常水深与流场实现的;水深与流速对波向的影响很小。
The sea level and current velocity have an effect on wave height, and the wave direction modulation is small.
对静止环境中的圆形气泡羽流流场进行数值模拟,得出了气泡羽流的流速场和浓度场。
Numerical simulation of round bubble plumes in still environment is performed to obtain the distribution of velocity and gas holdup.
研究提示临床超声诊断瓣膜返流时,在返流速度范围较小的条件下,彩色多普勒返流面积具有一定半定量诊断意义;
The study indicated that in the clinical application of color Doppler valve regurgitation, color Doppler jet area has a certain semiquantitative value with a small range of jet velocity.
传统的点稀释法由于垂向流的干扰无法测定渗透流速。
Traditional dilution theory cannot measure the velocity precisely of seepage flow for the interference of vertical flow in the multi-aquifers.
在飞行器所在流场的下游一垂直于来流速度的截面上进行积分计算,得到升力、诱导阻力、激波阻力和总阻力。
By doing integral computation on the wake surface that is down from the aircraft and vertical to the velocity of far field, it can get the lift, induced drag, wave drag and the total drag.
在相同叶轮出口速度下,叶片扩压器比无叶扩压器中气流速度下降迅速,叶轮出口处平均流场趋于均匀。
Under the same impeller outlet speed, the flow speed of blade diffuser is faster than the vaneless one. The average flow field at impeller outlet trends to uniform.
其观测内容包括流态、时均压力、空化噪声、流速、雾雨。
The observation content included the flow pattern, time average pressures, flow velocities, fog rain and inspection in situ.
湖中风生环流的流速比较缓慢,风向、风速对湖泊的环流结构有显著影响,风向、风速的变化立刻引起流场的变化。
In lake, wind-driven velocities are slow, wind power has an obvious impact on circulation structures, changes of wind power immediately brings changes of flow field.
通过模型试验,研究了水平旋流泄洪洞的基本流态、基本水力特性、流速分布与压强分布特性。
The basic flow patterns and hydraulic characteristics, flow velocity and pressure distribution characteristics, have been investigated on a model of the level rotary flow discharge tunnel.
本文针对热膜流速仪元件的工作原理提出了在平面旋转测量液体三维流速的方法,并测量了大型精馏塔板液相单相三维流场。
In this paper, a new method of measuring liquid three dimensional flow velocity by rotaining the probe in the plane was submitted basing elaborate analyzing of hot film anemometer.
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.
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.
研究结果表明流体绕流振动圆管时,在较低流速下即可获得较好的传热效果。
The result shows that the preferable heat transfer effect can be acquired on the condition of a low flow rate.
数据流具有数据量无限且流速快等特点,使得传统的聚类算法不能直接应用于数据流聚类问题。
Data stream is characterized by infinite data and quick stream speed, so traditional clustering algorithm cannot be applied to data stream clustering directly.
本文研究了低流速范围内突出式和陷落式圆柱形腔的流激自持振荡和驻波共振问题。
The flow-induced self-sustaining oscillation and standing wave resonance of protruding and trap cavities are studied at the low speed range.
弯曲型河流的水流运动研究包括流速及流速分布、比降、流场分布、环流运动、紊动特性等。
The research about the bend-flow includes velocity, the distribution of velocity, slope, the distribution of flow, circumfluence of flow and the characteristic of turbulent.
文章分析了与折冲流有关的因素,如压差、压力和流速梯度以及渥奇面参数,进而提出了修改方案,基本解决了该孔存在的折冲流问题。
The factors related to the oblique flow, such as pressure difference, pressure and velocity gradients and the parameter of Ogee surface are also analysed.
还提出了滑动窗口的更新周期、数据流的流速对预测精度影响的数学模型。
A mathematical model that characterizes the affects of the updating cycle of sliding window and data stream rate on predictive accuracy is also presented.
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.
泥石流固体颗粒级配倒置,影响流速垂线分布、流态与冲击力,是一个十分重要的问题。
The inverse grading of solid particles in debris flow effects the velocity distribution along the vertical the state of motion and the impulse on structure is an important problem.
泥石流固体颗粒级配倒置,影响流速垂线分布、流态与冲击力,是一个十分重要的问题。
The inverse grading of solid particles in debris flow effects the velocity distribution along the vertical the state of motion and the impulse on structure is an important problem.
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