Improved dissipative model of hydrodynamic in tube

XU Binbin; WANG Xue; WU Chaojun; ZENG Weiping; YAN Lai; LAN Yu; ZHU Renyu

doi:10.13224/j.cnki.jasp.2021.01.010

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Improved dissipative model of hydrodynamic in tube

更新时间：2026-07-07

- Improved dissipative model of hydrodynamic in tube
- Vol. 36, Issue 1, Pages: 78-87(2021)
- 作者机构：
- 作者简介：
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- DOI：10.13224/j.cnki.jasp.2021.01.010
  CLC：
- Published：2021
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徐彬彬, 王学, 巫朝君, 曾维平, 颜来, 兰宇, 朱任宇. 管道内流动力学修正耗散模型[J]. 航空动力学报, 2021, 36(1): 78-87.

doi: 10.13224/j.cnki.jasp.2021.01.010
徐彬彬, 王学, 巫朝君, 曾维平, 颜来, 兰宇, 朱任宇. 管道内流动力学修正耗散模型[J]. 航空动力学报, 2021, 36(1): 78-87. DOI： 10.13224/j.cnki.jasp.2021.01.010.

doi: 10.13224/j.cnki.jasp.2021.01.010 DOI：

摘要

基于二维流体动力学方程组

根据管道内流动力学相关特性以及管道输入端流场边界条件

提出了修正耗散模型。相对于耗散模型

修正耗散模型考虑了管道输入端流场的影响

能够更精确地描述风洞试验中管道效应对动态压力测量的影响。FL-14风洞动态压力试验也表明:管道间接测量的动态压力结果经过修正耗散模型进行修正后

能够大幅度减少管道效应所带来的误差。在一定试验条件下

耗散模型修正结果的相对误差高达534%

而修正耗散模型修正结果的相对误差只有66%。

Abstract

Based on the two-dimensional hydrodynamics equations and the real flow boundary condition at the inlet of tube

an improved dissipative model was proposed. Compared with the dissipative model

the improved one taking the speed of flow field into account can describe the effect of tube on measuring dynamic pressure more accurately in wind tunnel test. The experiments in FL-14 wind tunnel also indicated that the improved dissipative model can dramatically reduce the measuring error compared with the dissipative model. The relative error of 534% resulting from the correction via dissipative model decreased to 66% via the improved dissipative model at certain experimental conditions.

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