船舶与海洋工程

船用燃气轮机进气系统气动特性

  • 王建华 ,
  • 吴宛洋 ,
  • 钟兢军 ,
  • 潘涛
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  • (1.大连海事大学 轮机工程学院 ,辽宁 大连 116026;2.中国船舶工业系统工程研究院 ,北京 100094)
王建华(1979-),男,博士生.

收稿日期: 2016-07-15

  修回日期: 2016-08-26

  网络出版日期: 2016-08-26

基金资助

辽宁省高校创新团队支持计划资助项目(LT2015004);中央高校基本科研业务费专项资金资助(3132016334).

Aerodynamic characteristics of the intake system in a marine gas turbine

  • WANG Jian-hua ,
  • WU Wan-yang ,
  • ZHONG Jing-jun ,
  • PAN Tao
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  • (1.Marine Engineering College,Dalian Maritime University,Dalian 116026,China;2.Systems Engineering Research Institute of China State Shipbuilding Cooperation,Beijing 100094,China )

Received date: 2016-07-15

  Revised date: 2016-08-26

  Online published: 2016-08-26

摘要

为研究某新型船用燃气轮机进气系统的气动特性,探究该进气系统的设计合理性,在自主设计的实验台上完成设计工况的实验研究,进行气动参数的采集,并利用仿真软件ANSYS CFX对该工况进行计算并获得更为详细的内部流场,分析各截面上总压损失分布及流阻特性.结果表明,实验和数值结果基本一致,在设计工况下, 该进气系统内部流场主流区流动平稳均匀,各部分总压损失分配合理,进气系统整体总压损失为1242.17 Pa,阻力系数为21.30,出口均匀系数为0.9989,气动阻力较低,具有良好的气动特性.

本文引用格式

王建华 , 吴宛洋 , 钟兢军 , 潘涛 . 船用燃气轮机进气系统气动特性[J]. 大连海事大学学报, 2017 , 43(1) : 33 -39 . DOI: 10.16411/j.cnki.issn1006-7736.2017.01.006

Abstract

In order to study the aerodynamic resistance characteristics of the intake system in a new marine gas turbine and explore the innovative design, the experiment investigation was carried out on the original intake system under the design condition, on which the aerodynamic parameters were collected. Meanwhile, the numerical simulation software ANSYS CFX was used to obtain the flow field of the intake system at the same condition in detail, thus both the distributions of the total pressure loss and the aerodynamic resistance characteristic for the different cross sections were analyzed. Results show that the simulated aerodynamic parameters were well agreed with the experimental data. The internal flow field of the main flow of the intake system keeps stable and uniform in the design condition, and the total pressure loss of different parts allocation is reasonable. The overall total pressure loss is 1242.17 Pa, the resistance coefficient is 21.30, the outlet uniformity coefficient is 0.9989, and the aerodynamic resistance is lower. Thus, the synthetic simulation text-bed has good aerodynamic characteristics.

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