Fast heat transfer calculations in supercritical fluids versus hydrodynamic approach - Archive ouverte HAL
Article Dans Une Revue Physical Review E : Statistical, Nonlinear, and Soft Matter Physics Année : 2003

Fast heat transfer calculations in supercritical fluids versus hydrodynamic approach

Résumé

This study investigates the heat transfer in a simple pure fluid whose temperature is slightly above its critical temperature. We propose a efficient numerical method to predict the heat transfer in such fluids when the gravity can be neglected. The method, based on a simplified thermodynamic approach, is compared with direct numerical simulations of the Navier-Stokes and energy equations performed for CO2 and SF6. A realistic equation of state is used to describe both fluids. The proposed method agrees with the full hydrodynamic solution and provides a huge gain in computation time. The connection between the purely thermodynamic and hydrodynamic descriptions is also discussed.
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hal-01261616 , version 1 (25-01-2016)

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Vadim Nikolayev, Anne Dejoan, Yves Garrabos, D Beysens. Fast heat transfer calculations in supercritical fluids versus hydrodynamic approach. Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, 2003, ⟨10.1103/PhysRevE.67.061202⟩. ⟨hal-01261616⟩
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