Effects of coupling on turbulent gas-particle boundary layer flows at borderline volume fractions using kinetic theory | ||
| Journal of Heat and Mass Transfer Research | ||
| مقاله 1، دوره 1، شماره 1، مرداد 2014، صفحه 1-8 اصل مقاله (758.62 K) | ||
| نوع مقاله: Full Length Research Article | ||
| شناسه دیجیتال (DOI): 10.22075/jhmtr.2014.148 | ||
| نویسندگان | ||
| Maziar Dehghan؛ Hassan Basirat Tabrizi* | ||
| Mechanical Engineering Department., Amirkabir University of Technology, Tehran, Iran | ||
| چکیده | ||
| This study is concerned with the prediction of particles’ velocity in a dilute turbulent gas-solid boundary layer flow using a fully Eulerian two-fluid model. The closures required for equations describing the particulate phase are derived from the kinetic theory of granular flows. Gas phase turbulence is modeled by one-equation model and solid phase turbulence by MLH theory. Results of one-way and two-way coupled approaches are compared with the available experimental and numerical results. Results show that one-way coupled approach is more efficient for particulate velocity prediction in dilute flows. But, if the gas-phase flow characteristics are desired, the twoway coupled approach should be used. Effects of free stream velocity on the coupling are discussed. | ||
| کلیدواژهها | ||
| Two-way coupled؛ Gas-Particle flow؛ Kinetic theory؛ Turbulent boundary layer | ||
| مراجع | ||
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