National Repository of Grey Literature 157 records found  beginprevious147 - 156next  jump to record: Search took 0.01 seconds. 
Numerical simulation of the fire diffusion in mining passage
Michalec, Zdeněk ; Kozubková, M. ; Bojko, M.
Numerical simulations of the stable stratified flow in a 3D passage affected by a thermal source have been calculated with a standard k-e model. Furthermore, the radiation heat transfer model is implemented and species transport equations are defined too. The model allows a correct stratification and produces fairly accurate heat wall transfer.
Radiation Transfer in SF6 and PTFE Arc Plasmas
Aubrecht, Vladimír ; Bartlová, M. ; de Hesselle, M.
The switching arc or plasma is ignited inside a narrow nozzle of synthetic material (PTFE, Polythetraflourethylen). Due to the high emission of radiation from the arc the synthetic material ablates and causes a high overpressure inside the nozzle and
Calculation of radiative heat transfer in argon arc plasmas
Aubrecht, Vladimír
Radiative heat transfer is a significant energy exchange process in arc plasmas. In the paper, an approximate "Method of partial characteristics (MPC)" is used to evaluate radiation intensities, radiation fluxes and divergence of radiation fluxes in an arc plasmas of cylindrical symmetries at various plasma temperature profiles.

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