| Autor: |
Rychkov, Alexander D., Shokin, Yurii I. |
| Zdroj: |
Computational Science & High Performance Computing IV; 2011, p51-63, 13p |
| Abstrakt: |
A model of a Pulse Aerosol System for Fire Fighting (PASFF), that is designed for fighting fires on gas wells, during the tankage of oil and at oil spills. The system represents a separate fillings device, that consists of a charge of solid propellant (the gas generator) and a container with fine dispersed powder of a flame retardant (FR). The combustion products from the gas generator form a low-intensity ballistic wave, that quenches the flame, disperses the flame retardant, and transports it to the combustion zone in the form of an aerosol cloud of finely dispersed particles. Favre-averaged Navier–Stokes equations closed by the q − ω model of turbulence were used as a model of motion for the carrier gas. The motion of the polydisperse solid phase was described as a stochastic process. The resulting system of equations is solved numerically by the finite volume method with a second order upwind difference scheme with TVD-properties. A software toolkit for the numerical simulation of PASFF on different complexity levels was developed. The toolkit includes parallel implementations of mathematical models of PASFF application on model fires. The dependence of computational speedup on the number of computational nodes was investigated. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
