Effects of combustion on supersonic film cooling using gaseous hydrocarbon fuel as coolant

Zuo, Jingying; Zhang, Silong; Wei, Dingyuan; Meng, Lingkuan; Qin, Jiang; Bao, Wen; Haidn, Oskar

doi:10.1016/j.ast.2020.106202

Cited by 27 publications

(1 citation statement)

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“…Zuo et.al (2020) researched the Effects of combustion on supersonic film cooling using gaseous hydrocarbon fuel as a coolant. Without the supersonic film cooling the wall temperature of the bell nozzle at starting is reduced but it increases rapidly after some time compared to the supersonic film cooling [22]. Verma et.al (2020) investigated flow characteristics inside a dual bell nozzle with and without film cooling.…”

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confidence: 99%

Review Study on Thermal Characteristics of Bell Nozzle used in Supersonic Engine

Guram¹,

Jadhav²,

Sawant³

et al. 2023

jame

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The nozzle is an important component of the rocket motor system, and a rocket’s overall performance is highly reliant on its aerodynamic design. The nozzle contour can be meticulously shaped to improve performance significantly. The design and shape of rocket nozzles have evolved over the last several decades as a result of extensive research. The nozzle design is composed of two components, an integrated throat, an entry and an exit cone, and a thermal protection system. The Bell Nozzle is designed to provide clearance space for placing the ITE and exit cone, with a cone inflection angle of 16 and a thermal protection system. This paper intends to review and summarize all such developments. Small-scale engine testing allows for the analysis of rocket nozzle materials, but the history of nozzle surface temperature and thermal stress may be adversely affected by side effects. The review focuses primarily on the nozzle shape which has the largest radiative flux past the neck, but the nozzle shape has the highest heat flux in the throat due to the mass-flow rate per unit area. The distribution of nozzle wall pressure is strongly influenced by the Mach number of the injected secondary flow, leading to undesirable side loads. Finally, future development possibilities are suggested.

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Section: …… (1)mentioning

confidence: 99%