切向孔直径精度对离心喷嘴性能影响

张亚; 刘倩; 谢恒

doi:10.13224/j.cnki.jasp.20200532

切向孔直径精度对离心喷嘴性能影响

doi: 10.13224/j.cnki.jasp.20200532

张亚^1,2,
刘倩^1,2,
谢恒¹

1.
中国航天科技集团有限公司北京航天动力研究所，北京 100076
2.
中国航天科技集团有限公司低温液体推进技术实验室，北京 100076

详细信息

作者简介:
张亚（1983-），男，高级工程师，硕士，主要从事氢氧火箭发动机和燃料电池设计、仿真等研究工作。

中图分类号: V434.1
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- 被引次数: 0
出版历程
- 收稿日期: 2020-12-14
- 刊出日期: 2021-12-28

Influence of precision of tangential port diameter on performance of swirl atomizer

ZHANG Ya^1,2,
LIU Qian^1,2,
XIE Heng¹

1.
Beijing Aerospace Propulsion Institute，China Aerospace Science and Technology Corporation，Beijing 100076，China
2.
Laboratory of Cryogenic Liquid Propellants，China Aerospace Science and Technology Corporation，Beijing 100076，China

摘要

摘要: 为解决离心喷嘴流量系数理论计算与试验偏差普遍较大的问题，采用Fluent两相流模型计算了不同切向孔直径下的喷雾锥角、流量系数等性能参数，分析发现切向孔直径加工精度对离心喷嘴流量系数有较显著的影响。通过塞规测量了4个喷嘴的切向孔直径，利用切向孔直径测量平均值建立几何模型，计算了较大范围不同压降下的喷嘴性能，并与试验结果进行了对比。模型计算结果和试验数据吻合较好，喷雾锥角与试验偏差小于1°，流量系数偏差小于4.2%。
- 离心喷嘴 /
- 两相流 /
- 计算流体力学 /
- 切向孔 /
- 加工精度
Abstract: In order to solve the problem of large deviation between theoretical calculation and test data of discharge coefficient of swirl atomizer，a two-phase flow computational model with Fluent was taken to investigate the performance of a swirl atomizer.The influences of machining precision of tangential port diameter on performance parameters，including spray angle and discharge coefficient were simulated.The results showed that the discharge coefficient was influenced obviously by the tangential port diameter precision.The average diameters of tangential ports of 4 swirl atomizers were measured using plug gauges.Models with measured average diameters were taken to evaluate the performance of the swirl atomizers under a wide range of different pressure drops，and the result was compared with test data.The computational results agreed well with the test data，the error of spray angle was less than 1°，and the discharge coefficient difference was within 4.2%.
- swirl atomizer /
- two phase flow /
- computational fluid dynamics /
- tangential port /
- machining precision

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参考文献(18)

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