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

1Basok, BI, 1Gotsulenko, VV
1Institute 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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