Simulation of particle temperature fluctuations in Eulerian-lagrangian predictions of transfer in a turbulent gas-sold pipe flow

摘要

An original technique is proposed to simulate the particle temperature fluctuations in the frame of an Eulerian-Lagrang approach, in order to properly assess the particle turubulent heat flux and the thermal source term in the fluid energy equation. A stochasti process is used to predict the tempe4rature of a particle along its path in terms of the instantaneous temperature of the fluid seen by the particle. Heat transfer predictions in a vertical gasp solid pipe flow obtained using the proposed method are presented.