PRESSUR1ZATION ANALYSIS OF CRYOGENIC PROPULSION SYSTEMS
PRESSUR1ZATION ANALYSIS OF CRYOGENIC PROPULSION SYSTEMS
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DOI：
10.2514/6.2000-3788
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发表时间：
2000-07
期刊：
影响因子：
--
通讯作者：
P. Adnani
中科院分区：
文献类型：
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作者：
P. Adnani
采用计算流体力学（CFD）方法对低温氢贮箱的增压特性进行了分析。该分析研究了推进剂贮箱在预加压阶段使用不凝氦的气相热力学，以及在发动机运行期间使用氢气的自生加压。分析的主要目的是预测气隙压力特性和将气隙压力保持在规定范围内所需的加压气体量。将分析结果与1998年在NASA刘易斯普拉姆布鲁克推进研究设施获得的波音德尔塔III氢氧末级飞行器X级的试验数据进行了比较。模型预测结果与试验数据吻合良好。
The pressurization behavior of a cryogenic hydrogen tank was analyzed using computational fluid dynamics (CFD). The analysis examined the gas-phase thermodynamics of the propellant tank during the prepressurization phase using noncondensable helium, and autogenous pressurization using hydrogen gas during engine operation. The primary purpose of the analysis was to predict the ullage pressure behavior and the amount of pressurization gas necessary to maintain the ullage pressure within the specified band. Results from the analysis were compared to test data obtained at the NASA Lewis Plum Brook Propulsion Research Facility in 1998 for a Boeing Delta III hydrogen-oxygen upper stage vehicle designated as the X-Stage. The model predictions were shown to be in good agreement with the available test data.