APPLICATION OF DIFFERENT TURBULENT MODELS IN CALCULATION OF FLOW RESISTANCE IN PIPELINES AND COMPARISON THEREOF

ZHOU Zhi-jun; LIN Zhen; ZHOU Jun-hu; LIU Jian-zhong; CEN Kefa(Zhejiang University

doi:10.19666/j.rlfd.2007.01.006

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APPLICATION OF DIFFERENT TURBULENT MODELS IN CALCULATION OF FLOW RESISTANCE IN PIPELINES AND COMPARISON THEREOF

更新时间：2025-09-28

- APPLICATION OF DIFFERENT TURBULENT MODELS IN CALCULATION OF FLOW RESISTANCE IN PIPELINES AND COMPARISON THEREOF
- Thermal Power Generation Issue 1, Pages: 18-23(2007)
- 作者机构：
  
  1. 浙江大学
  2. 浙江大学
  3. 3:浙江大学
  4. 4:浙江大学
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.2007.01.006
  CLC： O357.5
- Published：2007
- 稿件说明：
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ZHOU Zhi-jun, LIN Zhen, ZHOU Jun-hu, et al. APPLICATION OF DIFFERENT TURBULENT MODELS IN CALCULATION OF FLOW RESISTANCE IN PIPELINES AND COMPARISON THEREOF[J]. Thermal power generation, 2007, (1): 18-23.
DOI：

ZHOU Zhi-jun, LIN Zhen, ZHOU Jun-hu, et al. APPLICATION OF DIFFERENT TURBULENT MODELS IN CALCULATION OF FLOW RESISTANCE IN PIPELINES AND COMPARISON THEREOF[J]. Thermal power generation, 2007, (1): 18-23. DOI： 10.19666/j.rlfd.2007.01.006.

摘要

应用几种不同的湍流模型

模拟计算水力光滑管的沿程阻力系数。将计算结果与尼古拉茨试验结果进行比较

可见Spalart-Allmaras湍流模型与试验结果吻合得最好

即在5个不同雷诺数(Re)下

其计算结果的最大误差为1.65%。研究还表明

无论圆管内流体流动是层流还是湍流

流动阻力的大小主要由流体在壁面附近的速度分布决定。

Abstract

Friction loss factors of hydraulically smooth pipes have been calculated by using several different turbulent models.Through comparison of calculated results with Nikuradse's test results

it was found that the result from Spalart-Allmaras turbulent model tallies with Nikuradse's test result much better than other turbulent models

the maximal error of calculated results under five different Reynolds numbers all was 1.65%.At the same time

the study also indicates that the flow resistance in a pipeline is mainly determined by the velocity distribution near the wall surface regardless the liquid flow to be laminar or turbulent flow in a round pipe.

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