time averaged velocity

[taɪm ˈævərɪdʒd vəˈlɒsəti]
  • 释义

    时均速度

数据更新时间:2026-04-19 14:34:29
1、

It is demonstrated that the accuracy of the approximate approach is acceptable in engineering, provided that the time averaged velocity gradient be determined by using the proper models.

结果表明,若选择适当的湍流时均速度梯度模型,用近似算法计算的体均能量耗散率与用解析式计算的值接近,说明该近似算法的准确性可以满足工程计算的需要。

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2、

The calculation formulas for velocity coefficients φ_2 and φ_5 for the throat and throat inlet section were deduced from the theoretical research on the velocity coefficients in time-averaged basic equations by use of the unsteady momentum equation and time-averaged value calculation method.

运用非恒定的动量方程和时均值计算方法,对脉冲液体射流泵时均值基本方程中的流速系数进行了理论研究,推导出了喉管和喉管进口段流速系数φ2和φ5的计算式。

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3、

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。

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4、

The time averaged velocity slip between two phases and the fluctuation velocity of two phases are sufficiently high.

本研究还表明两相间有速度滑移,气相及颗粒相均有较高的湍流强度。

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5、

The time-averaged velocity is related to the sampling duration.

时均流速与采样时间的长短有关;

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