D-332 ロケット発射時におけるオーバープレッシャーの数値解析

NDLデジタルコレクション 被引用文献1件

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  • Numerical Simulation of Ignition Overpressure

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The phenomena of ignition overpressure (IOP) has been simulated in two cases with the specific heat ratio γ=1.18 and γ=1.4. The former case assumes that a combustion gas fills the overall computational region, while the latter assumes air instead of the combustion gas. The objective of the present study is to investigate whether IOP is affected by the kind of gas. This simulation was performed for a solid rocket booster (SRB) of space shuttle. The time history of pressure rise at the nozzle inlet was taken into account by imitating the SRB ignition. The result with γ=1.18 shows good agreement with the data measured on the surface of STS-Ts SRB.

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