Abstract
The paper depicts design philosophy of a pneumatic pressurization system configured for Inflatable Aerodynamic Decelerator (IAD). The objective is to fine tune parameters in conjunction with mathematical model allowing a better understanding of process. System configuration has been discussed and mathematical model is formulated for estimating thermodynamic properties and mass flow of gas transferring from high pressure storage to IAD through orifice. Theoretical analysis and calculations were made and compared with the simulations carried out in LMS AMESim platform. Experiments were conducted in vacuum conditions to verify pressure change in high pressure storage and in IAD and this experimental data is used for validation of mathematical model.
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