Title :
Computer investigation of spatial-temporal evolution of the thermal instability
Author :
Noskov, M. ; Cheglokov, A. ; Shapovalov, A.
Author_Institution :
Tomsk Polytech. Univ., Russia
Abstract :
The mathematical model of temperature, electric field and charge density dynamics in the course of thermal breakdown is considered. Development of thermal instability caused by local temperature increase is investigated with the help of numerical simulation. Start conditions and spatial-temporal characteristics of the electrical-thermal structure growth resulting in formation of highly conducting channel and filamentary thermal breakdown are obtained
Keywords :
electric breakdown; thermal stability; charge density; computer simulation; conducting channel; electric field; electrical-thermal structure; filamentary thermal breakdown; mathematical model; spatial-temporal evolution; temperature dynamics; thermal instability; Boundary conditions; Dielectrics and electrical insulation; Electric breakdown; Electrodes; Mathematical model; Permittivity; Resistance heating; Space heating; Temperature dependence; Thermal conductivity;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 2000 Annual Report Conference on
Conference_Location :
Victoria, BC
Print_ISBN :
0-7803-6413-9
DOI :
10.1109/CEIDP.2000.883996
