Study on Combustion Dynamic Characteristics of Oxygen-Rich Preburners

Moon, Il-Yoon; Kang, Sang Hun; Lee, Soo-Yong; Seo, Seonghyeon

doi:10.2514/1.b35140

Cited by 2 publications

(1 citation statement)

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“…Among those (refer Table 2), the high-frequency (HF) -thermo-acoustic (chamber instability) instability that results from the interaction between the combustion process and the chamber acoustics are portrayed as the most detrimental [37][38][39] . These instabilities result in extremely unstable heat transfer rates, accelerates the combustion process by shortening the flame, leading to local burnout of the combustion chamber walls, injector plates, and severe damage to the propulsion system.The shortened flames are actually the visible outcome of accelerated mixing and evaporation of the reactant infused as liquid droplets, a particular phenomenon that is observed usually in tests and simulations done at trans-critical conditions [40][41][42][43] .Indeed, the irregular heat emission during combustion may be seen as an acoustic source that transmits perturbations caused by soundalong the combustor.…”

Section: Combustion Dynamics and Instabilitymentioning

confidence: 99%

A Review on Advancements and Characteristics of Cryogenic Propulsion Rocket Engine

R¹,

Jeyan²

2023

Evergreen

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Future space exploration missions will require the synergistic integration of potentially lightweight, high thrust producing, and environmentally sustainable rocket engines. This article guides through one such capable rocket engine, the cryogenic propulsion rocket engine and some cutting-edge characteristics and novel engineering advancements affiliated with it. A typical cryogenic-propulsion rocket engine works similarly to all other LPRE's (Liquid Propellant Rocket Engines), in which the primary fluid (Cryogenic fuel 1) reacts chemically to get vaporized and get ignited by an oxidizer to provide extremely hot rocket thrust that escapes the engine nozzle and generates thrust from the combustion process. Considerable efforts have been made to optimize the engine's performance and reliability in order to utilize the most desirable output from it. Therefore, a brief overview of the different models and research approaches associated with it to provide predictions and results about the stability, dynamics, and cooling characteristics of the given engine configuration is presented.

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