Abstract
The Eulerian conservation equations are deduced from first principle for a continuous fluid field and for a single particle field exchanging mass, momentum and energy. This includes Favre averaged equations and turbulent kinetic energy equations. A physically correct and easy to understand method for handling the interface tensor fields is formulated. Lagrangian equations for a particle exchanging mass, momentum and energy with the surrounding fluid have been deduced. Interface forces are reviewed and the formulation of the force a particle encounters when it is stationary relative to the fluid is discussed. The influence of the dynamic forces as compared to the normal drag force is investigated analytically. Two models for turbulent dispersion of particles are tested and a Lagrangian particle flow program is presented and applied to two particle flow tests from the literature. A stochastic particle-wall collision model is shown to substantially improve the agreement between calculated results and experimental data. (au) (5 tabs., 37 ills., 55 refs.).
Citation Formats
Astrup, P.
Turbulent gas-particle flow.
Denmark: N. p.,
1992.
Web.
Astrup, P.
Turbulent gas-particle flow.
Denmark.
Astrup, P.
1992.
"Turbulent gas-particle flow."
Denmark.
@misc{etde_10144606,
title = {Turbulent gas-particle flow}
author = {Astrup, P}
abstractNote = {The Eulerian conservation equations are deduced from first principle for a continuous fluid field and for a single particle field exchanging mass, momentum and energy. This includes Favre averaged equations and turbulent kinetic energy equations. A physically correct and easy to understand method for handling the interface tensor fields is formulated. Lagrangian equations for a particle exchanging mass, momentum and energy with the surrounding fluid have been deduced. Interface forces are reviewed and the formulation of the force a particle encounters when it is stationary relative to the fluid is discussed. The influence of the dynamic forces as compared to the normal drag force is investigated analytically. Two models for turbulent dispersion of particles are tested and a Lagrangian particle flow program is presented and applied to two particle flow tests from the literature. A stochastic particle-wall collision model is shown to substantially improve the agreement between calculated results and experimental data. (au) (5 tabs., 37 ills., 55 refs.).}
place = {Denmark}
year = {1992}
month = {Feb}
}
title = {Turbulent gas-particle flow}
author = {Astrup, P}
abstractNote = {The Eulerian conservation equations are deduced from first principle for a continuous fluid field and for a single particle field exchanging mass, momentum and energy. This includes Favre averaged equations and turbulent kinetic energy equations. A physically correct and easy to understand method for handling the interface tensor fields is formulated. Lagrangian equations for a particle exchanging mass, momentum and energy with the surrounding fluid have been deduced. Interface forces are reviewed and the formulation of the force a particle encounters when it is stationary relative to the fluid is discussed. The influence of the dynamic forces as compared to the normal drag force is investigated analytically. Two models for turbulent dispersion of particles are tested and a Lagrangian particle flow program is presented and applied to two particle flow tests from the literature. A stochastic particle-wall collision model is shown to substantially improve the agreement between calculated results and experimental data. (au) (5 tabs., 37 ills., 55 refs.).}
place = {Denmark}
year = {1992}
month = {Feb}
}