Guangsen JIA, Dapeng YAO, Xin JIN, Jian LIN, Nong CHEN

DOI Number: 10.60853/4gms-kh33

Conference number: HiSST-2024-00177

Accurate prediction of thermal environment is very important for thermal protection design and safe return of the reentry module. In order to measure the non-contact surface of the thermal environment of the outer bottom of the reentry capsule, the design method of the light path in the direction of the incoming flow and the optimization algorithm of the non-uniform light intensity field distribution are studied. The results show that the built-in positive pressure instrument protection device not only effectively realizes the heat dissipation of the image acquisition equipment and the effective isolation from the near vacuum environment, but also realizes the acquisition of experimental images along the airflow direction. The optimization algorithm improves the measurement accuracy under the condition of large polar Angle, and provides an experimental means for distributed measurement of thermal environment of large blunt body head.

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In Categories: 1.Events, HiSST 2024, Testing & Evaluation
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