Preliminary Design of a Sub-Scale Breadboard for LOx-CH4 Combustion Analysis

Clemente, Marco Di; Battista, Francesco; Ferraiuolo, Michele; Ricci, Daniele; Cardillo, Daniele; Fragiacomo, Manrico; Salvatore, Vito

doi:10.2514/6.2012-3316

Cited by 2 publications

(1 citation statement)

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“…This software platform, as an important general combustion flow field calculation tool in the field of computational fluid dynamics, can effectively handle flow field calculation problems in continuous flow. Fluent primarily solves the coupled Reynolds time-averaged N-S equations through discrete grids [23]. The control equation set was discretized using the finite volume method, where the convective term adopted a second-order upwind format, and the diffusion term adopted a central difference format.…”

Section: Numerical Analysismentioning

confidence: 99%

Effects of Different Structural Film Cooling on Cooling Performance in a GO2/GH2 Subscale Thrust Chamber

Xiang,

Jia,

et al. 2024

Aerospace

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To investigate the wall cooling of the thrust chamber in an engine, two film-cooling structures, namely, a circular hole structure and a slot structure, were designed. Numerical simulations were performed to study the coupled flow and regenerative cooling heat transfer in thrust chambers with different structures. The influences of parameters such as the film mass flow rate and film hole size on wall cooling were analyzed. Experiments were conducted in a thrust chamber to validate the accuracy of the numerical calculation method. The results indicate that the slot-structured film adheres better to the wall than the circular-hole-structured film, and the film closely adhering to the wall provides better insulation against hot gas, resulting in a reduction of approximately 6% in wall temperature. When the film hole size changes, the change in circumferential wall temperature in the upstream region of the slot-structured film is more pronounced. This paper aims to provide a reference for the design of the cooling structure at the head of the thrust chamber in engineering and suggests directions for optimization and improvement.

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Section: Numerical Analysismentioning

confidence: 99%