Combined Surface Heating by Laser Beam and Subsonic Nitrogen Plasma Jet.

Autor: Chaplygin, Aleksey, Kotov, Mikhail, Yakimov, Mikhail, Lukomskii, Ilya, Galkin, Semen, Kolesnikov, Anatoly, Shemyakin, Andrey, Solovyov, Nikolay
Předmět:
Zdroj: Fluids; Jan2023, Vol. 8 Issue 1, p11, 13p
Abstrakt: The paper describes new combined heating capability of the IPMech RAS inductively coupled plasma facility VGU-4. A 200 W ytterbium laser was added to the facility as a source of radiative heating. The cylindrical specimen made of the Buran orbital vehicle's heat-shielding tile material with a black low catalytic coating was exposed to subsonic pure nitrogen plasma jet and laser radiation. The specimen surface temperature reached 1325 ∘ C during combined radiative and convective heating. The maximum heat flux obtained in the combined mode for a laser incident power of 47 W and a VGU-4 HF-generator anode power of 22 kW was 32.1 W/cm 2 . The convective heat flux from the nitrogen plasma jet at the same anode power was 12.6 W/cm 2 . Adding a laser to an existing inductively coupled plasma facility gives the future opportunity to better simulate entry into the atmospheres of Mars, Venus, the outer planets and their moons. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index