Highlights A model investigating the thermal-dynamic performance of scientific balloon is proposed. We calculate the thermal-dynamic performance of a balloon in a real environment. The balloon almost drifts with wind in horizontal direction and its trajectory changes with wind. The maximum film temperature is 230K in ascending process and 280K at floating conditions. The average Helium velocity is 0.65m/s in ascending process and 0.55m/s at floating conditions.
Abstract The increase of balloon applications makes it necessary for a comprehensive understanding of the thermal and dynamic performance of scientific balloons. This paper proposed a novel numerical model to investigate the thermal and dynamic characteristics of scientific balloon in both ascending and floating conditions. The novel model consists of a dynamic model and thermal model, the dynamic model was solved numerically by a computer program developed with Matlab/Simulink to calculate the velocity and trajectory, the thermal model was solved by the Fluent program to find out the balloon film temperature distribution and inner Helium gas velocity and temperature field. These models were verified by comparing the numerical results with experimental data. Then the thermal and dynamic behavior of a scientific balloon in a real environment were simulated and discussed in details.
A comprehensive numerical model investigating the thermal-dynamic performance of scientific balloon
Advances in Space Research ; 53 , 2 ; 325-338
2013-11-06
14 pages
Article (Journal)
Electronic Resource
English
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