气冷径向稳定器张角对混合扩压器性能影响

刘友宏; 周开福

doi:10.13224/j.cnki.jasp.2017.01.001

气冷径向稳定器张角对混合扩压器性能影响

doi: 10.13224/j.cnki.jasp.2017.01.001

北京航空航天大学能源与动力工程学院,北京 100191

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出版历程
- 收稿日期: 2015-04-22
- 刊出日期: 2017-01-28

Effect of air cooled radial stabilizator opening angle on performance of the mixer and diffuser.

摘要

摘要: 针对一种混合扩压器和气冷径向稳定器一体化新型结构,基于N-S方程建立了流场三维数值计算模型,研究了气冷径向稳定器张角变化对混合扩压器流场、流阻特性和混合特性的影响规律.结果表明:随着气冷径向稳定器张角的增大,混合扩压器的静压恢复系数逐渐减小,混合扩压器的流阻系数和压力损失系数均逐渐增大；在混合扩压器出口截面处,随着气冷径向稳定器张角的增大,总压恢复系数逐渐减小,总压恢复系数的最大值与最小值相差0.0032.热混合效率逐渐增大,热混合效率的整体变化范围为0.7268~0.8857.
- 混合扩压器 /
- 气冷径向稳定器 /
- 张角 /
- 流阻特性 /
- 混合特性
Abstract: For a new type of mixer and diffuser and aircooled stabilizator integration structure, a threedimensional numerical simulation model based on the N-S equation was created. Through numerical simulation, the flow field, flow resistance characteristics and mixing characteristics of different aircooled radial stabilizator opening angles in the mixer and diffuser were obtained. The results show that, the recovery coefficient declines as the aircooled radial stabilizator opening angle increases; the flow resistance cofficient and pressure loss coefficient of the mixer and diffuser increases with the growing aircooled radial stabilizator opening angle. Around the exit section of the mixer and diffuser, the total pressure recovery coefficient declines as the aircooled radial stabilizator opening angle increases, the difference between the maximum and the minimum values is 0.0032, and the thermal mixing efficiency increases with the whole range of 0.7268~0.8857.
- mixer and diffuser /
- aircooled radial stabilizator /
- opening angle /
- flow resistance characteristics /
- mixing characteristics

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