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Proceedings/Recueil Des Communications Année : 2024

Experimental Investigation of Repetitive Femtosecond Laser Energy Deposition in a M=3 Supersonic Airflow

Résumé

A picosecond 200-mJ pulsed laser operating at 1 kHz is used to create large aspect ratio heated channels in front of a blunted test model in a M=3 flow. The energy deposition induces a significant disturbance of the flow and large fluctuations of the drag signal. The heated region extends over 50-80 mm upstream of the test item. For this given repetition rate, the raw drag balance signal shows no significant decrease in the averaged drag, which could be due to the vibration induced by the fluctuating drag on the mechanical system.
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Dates et versions

hal-04382938 , version 1 (09-01-2024)

Identifiants

Citer

Paul-Quentin Elias, Benjamin Khiar, Sylvain Morilhat, Nicolas Severac, Jean-Marc Luyssen, et al.. Experimental Investigation of Repetitive Femtosecond Laser Energy Deposition in a M=3 Supersonic Airflow. AIAA ScieTech 2024 Forum, American Institute of Aeronautics and Astronautics, Inc., 2024, ⟨10.2514/6.2024-1651⟩. ⟨hal-04382938⟩
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