Comparison of three computational models for predicting pressurization characteristics of cryogenic tank during discharge
发布时间：2025-04-30
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- 发布时间：
- 2025-04-30
- 论文名称：
- Comparison of three computational models for predicting pressurization characteristics of cryogenic tank during discharge
- 发表刊物：
- Cryogenics
- 摘要：
- In order to select an effective approach to predict the pressurization characteristics of cryogenic tank
during rocket launching, three computational models, defined as 0-D, 1-D and CFD models, are used to
obtain the pressure evolution and thermal performance of a cryogenic tank during pressurized discharge
period. Several pressurization cases are computed by all of the three models to evaluate their predictive
abilities and effects, respectively. The comparative study shows that for the case with a diffusertype
injector at the tank inlet, the consistent results by the three models are obtained in the most of
period, except that 1-D model has a peak departure prediction of pressure value at the beginning of process.
All of the three models can be used to predict the pressurization performance, and their predictive
abilities could be validated with one another. The CFD model is the unique suitable model to display the
pressurization performance including physical distribution in radial direction especially for the system
with no-diffuser-type injector. Based on the analysis, the application selection of three models for different
cases is accomplished. The 0-D model is the priority selection for a simple pressure prediction of tank
ullage, even for the situation that severe temperature distribution exists in the ullage range. The 1-D
model is the optimal selection as considering both the convenience and the time consumption for the
constant-pressure cases. But it is not recommended in a constant-inlet flux cases for its distinct
predicting deviation at the beginning of the process. When the detailed distributions within the tank
are concerned, the CFD model is the unique selection. The results of this paper may be beneficial to
the model selection and optimization analysis of a pressurization system.
- 合写作者：
- Wang Lei, et al
- 是否译文：
- 否
- 发表时间：
- 2014-11-04