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12 December 2021 Research on the influence of contraction curve on the flow field performance of Laval nozzle
Zhi-hao Shi, Pei-kun Liu, Yue-kan Zhang, Xiao-yu Li, Lan-yue Jiang
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Proceedings Volume 12127, International Conference on Intelligent Equipment and Special Robots (ICIESR 2021); 121272I (2021) https://doi.org/10.1117/12.2625257
Event: International Conference on Intelligent Equipment and Special Robots (ICIESR 2021), 2021, Qingdao, China
Abstract
In order to solve the problem of uneven airflow distribution of Laval nozzle in jet crushing, a comparative analysis of supersonic jet performance in nozzles with multiple contraction curves was conducted. The study found that the contraction section curve not only changes the velocity and pressure distribution of the contraction section of the nozzle, but also affects the uniformity of the flow in the nozzle, and the uniformity of the throat airflow and the contraction curve of the "slow flow" region has a certain relationship, the longer the region, the better the uniformity of the throat airflow; and the contraction curve caused by the airflow in the nozzle velocity, pressure and uniformity differences caused by the contraction curve in the nozzle with the supersonic flow of gas in the expansion section is gradually weakened.
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Zhi-hao Shi, Pei-kun Liu, Yue-kan Zhang, Xiao-yu Li, and Lan-yue Jiang "Research on the influence of contraction curve on the flow field performance of Laval nozzle", Proc. SPIE 12127, International Conference on Intelligent Equipment and Special Robots (ICIESR 2021), 121272I (12 December 2021); https://doi.org/10.1117/12.2625257
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KEYWORDS
Throat
Numerical simulations
Analytical research
Computer simulations
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