Supersonic Several Bells Design of Minimum Length Nozzle Contours for More Altitudes Level Adaptations

Yahiaoui, Toufik; Zebbiche, Toufik

doi:10.1007/s13369-021-05725-1

Cited by 3 publications

(1 citation statement)

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“…This study looked at the impact of rocket engine efficiency and created an SBN contour design procedure to look at a possible nozzle for supersonic rocket engines. [9]. Génin et.al (2021) studied the flow separation in the dual-bell nozzle and the various methods to reduce the ambient pressure during the launcher's ascent and at some point, the nozzle pressure ratio required for the flow transfer is reached.…”

Section: …… (1)mentioning

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%