Stable hydraulic computation method for fuel pipe system based on the graph theory

魏杰立; 张净玉; 叶大海; 何小民

doi:10.13224/j.cnki.jasp.2017.10.006

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Stable hydraulic computation method for fuel pipe system based on the graph theory

更新时间：2026-07-07

- Stable hydraulic computation method for fuel pipe system based on the graph theory
- Vol. 32, Issue 10, Pages: 2344-2354(2017)
- 作者机构：
  
  1. 南京航空航天大学能源与动力学院,南京,210016
  2. 南京航空航天大学能源与动力学院江苏省航空动力系统重点实验室,南京,210016
- 作者简介：
- 基金信息：
- DOI：10.13224/j.cnki.jasp.2017.10.006
  CLC：
- Published：2017
- 稿件说明：
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魏杰立, 张净玉, 叶大海, 何小民. 基于图论的燃油管路稳态流动计算方法[J]. 航空动力学报, 2017, 32(10): 2344-2354.

doi: 10.13224/j.cnki.jasp.2017.10.006
魏杰立, 张净玉, 叶大海, 何小民. 基于图论的燃油管路稳态流动计算方法[J]. 航空动力学报, 2017, 32(10): 2344-2354. DOI： 10.13224/j.cnki.jasp.2017.10.006.

doi: 10.13224/j.cnki.jasp.2017.10.006 DOI：

摘要

基于节点分析法，提出将局部损失并入相应管段的处理方法，推导阻力计算公式，从而得到兼顾沿程和局部损失的稳态流动计算方法。将该计算方法应用于实际的航空发动机燃油管路，采用VB.NET语言编写计算软件；同时，对燃油管路开展三维数值模拟计算。结果表明：局部损失对管路的流量分配影响较大；该计算方法得到的流量分配与数值计算结果趋势吻合很好，差别在±10%。

Abstract

Using nodal analysis model

a treatment for evaluating the local losses by merging them into relevant pipes was proposed and equations for computing total losses were deduced. Consequently

a method considering both friction and local losses was developed for stable fuel piping system. Then

it was applied to a practical simplified aeroengine fuel piping system. A software based on this algorithm was developed with VBNET language. Besides

threedimensional numerical simulations were conducted for the fuel piping system as well. Results showed that local loss affected the flow distribution a lot and directly determined the results. When solutions of the present method and numerical simulation were compared

they presented well agreement with each other with an error of ±10%.

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