Mechanisms of heat-hydrodynamic instability with local heat supply to gas

1Basok, BI, 2Gotsulenko, VV
1Institute of Engineering Thermophysics of the NAS of Ukraine, Kyiv
2Institute of Technical Heat Physics of the NAS of Ukraine, Kyiv
Dopov. Nac. akad. nauk Ukr. 2018, 3:69-79
Section: Heat Physics
Language: Russian

A mathematical model of nonstationary gas motions with a local supply of heat to a gas along a certain surface is developed. In the equations of motion, the heat energy dissipation tensor associated with the heat supply surface and characterizing the presence of a negative thermal resistance is specified. An equation is obtained for the components of the given tensor, and some of its particular cases are considered.

Keywords: instability, negative, thermal energy dissipation tensor, thermoacoustic self-oscillations
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