instantaneous velocity

Study on Instantaneous Velocity Measurement of High Speed Air Flow by Modified RELIEF Method

用修正的RELIEF方法测量高速空气流瞬时速度的理论研究

Keywords: unsupervised artificial neural network, image identification, instantaneous velocity.

关键词：无监督式类神经网路、影像辨识、瞬时速度。

According to the flow structures identified from instantaneous velocity fields, the vortex street is created at the airfoil tail region.

在测量范围内，翼型的尾缘处是近尾迹涡街的形成区；

Instantaneous Velocity Center Method for the Design of Cam Profiles

凸轮轮廓设计的速度瞬心法

Also, we do the calculation and analysis of the effect ISAR platform instantaneous velocity to the imaging. 3.

对平流层ISAR平台瞬时速度对成像的影响也做了计算分析。

So that's the definition of v, instantaneous velocity.

这些就是v的定义，也就是瞬时速度。

Characteristics of Acceleration of Instantaneous Velocity Center and Its Application

速度瞬心的加速度特性及其应用

Formulations of the lift and the thrust are derived based on the three-dimensional unsteady vortex lattice method, and the effect on instantaneous shape velocity is analyzed.

推导了新的基于空间非定常涡格法的扑翼飞行器升力和推力的计算公式，然后分析了瞬时形状速度对它们的影响。

Measure Principle and Method of Instantaneous Velocity

瞬时速度的测量原理及测量方法

They were to learn the instantaneous velocity problem, the concept of derivative and its application.

要求他们完成瞬时速度和导数概念及其应用的学习任务。

In addition, the instantaneous velocity is calculated, and its influencing factors are analyzed.

另外，还分析了排气孔口瞬时速度的影响因素，对瞬时速度进行了计算。

The experiment measuring instantaneous velocity in senior middle school is discussed.

研究了高中物理中理解瞬时速度概念的实验。

Particle imaging velocimetry of instantaneous velocity and concentration distributions in gas-solid two-phase jet flows

气固两相射流瞬时速度场和浓度场的PIV研究

Instantaneous Velocity Center and Its Application in Mechanism Velocity Analysis

速度瞬心及其在机构速度分析中的应用

Simulation Model of Optical Encoder and Estimation of Instantaneous Velocity for a Motor

光电码盘的仿真模型及电机瞬时速度估计方法的研究

A new way of determining the acceleration of the instantaneous velocity center of plane image

一种确定平面图形加速度瞬心的新方法

In contrast with averaged velocity field, more than one large-scale vortexes appear in instantaneous velocity field.

与平均流场所显示的气流结构不同，瞬时流场表现出大尺度的多涡结构。

Theorem on change of the moment of momentum of the rigid body about the instantaneous velocity centre

作平面平行运动的刚体相对于瞬心的动量矩定理

Based on energy balance theory calculate an instantaneous velocity.

依据能量平衡理论，得到崩塌体破坏后在某一瞬时的运动速度。

Research for the Instantaneous Velocity Measurement in Aircraft Bird-Impact Test

飞机鸟撞试验瞬时速度的连续测试方法研究

The instantaneous velocity, volume fraction, and pressure drop profiles for the gas and particulate phases are calculated.

计算得出气相和颗粒相的瞬时速度，空隙率和压降分布特性。

The dynamic vibration of hydraulic system is characteristic of instantaneous velocity, pressure and its oscillation.

液压系统动力学振动程度可用瞬时速度、压力和压力脉动描述其特性。

The instantaneous moving mode of sand mass is divided into 4 types, namely: rolling, jumping, suspending, and running away, when the wind speed reaches the threshold velocity of sand-driving wind.

文章研究将沙粒在风速达到沙粒的起动风速时沙粒的瞬间起动方式分为4种，即：滚动、跳跃、悬浮和飞扬4种。

The probability density functions ( PDF) for the gas axial and tangential velocities at each measuring location are obtained from the measured data of the instantaneous gas velocity. The results delineate the turbulent fluctuating properties of the reacting flow field.

通过瞬时速度场的测量结果，获得了燃烧室内各测点上气体轴向与切向瞬时速度的概率密度函数（PDF），揭示了热态速度场的湍流脉动特性。

One of the most important parameters can be got from the instantaneous velocity measure in the detonation and shock wave experiments.

在爆轰与冲击波实验中，瞬态速度的测量将为实验提供极为重要的参数。

This article introduces physical meaning and measure principle of instantaneous velocity and three methods of measuring it with different equip-ment.

介绍了瞬时速度的物理意义和测量原理，以及用不同仪器测量瞬时速度的3种方法。

The results showed that large eddy simulation can accurately capture the instantaneous characteristics and turbulent characteristics of flow field, but it has no obvious advantage in the time averaged velocity field.

结果显示大涡模拟能够准确的捕捉到流场的瞬时特性和湍流特性，但对时均速度场方面并没有明显的优势。

Research on instantaneous velocity experiment

瞬时速度的实验研究

The paper introduced the measuring principle of instantaneous velocity and velocity sensor, and analyzed the measuring data.

为定量分析拖拉机发动机动力性能，介绍了一种带微电脑瞬时转速测量仪，对其转速传感器的原理及测试数据进行了分析；

Non-contact measuring for instantaneous velocity of solid surface in industrial production

生产过程中物体瞬时速度非接触测量