Comparative analysis of turbulence model effect on description of the processes of pulverized coal combustion at flow swirl

Описание

Тип публикации: статья из журнала

Год издания: 2016

Идентификатор DOI: 10.1134/S0869864316040120

Ключевые слова: pulverized coal combustion, vortex furnace, RANS-methods, Reynolds stress model, pulverized coal combustion, RANS-methods, Reynolds stress model, vortex furnace, Coal, Cyclone separators, Flammability testing, Furnaces, Lagrange multipliers, Navier Stokes equations, Oceanography, Pulverized fuel, Reynolds equation, Reynolds number, Turbulence models, Comparative analysis, La-grangian approaches, Pulverized coal combustion, Pulverized coal flame, RANS-methods, Reynolds stress models, SST turbulence models, Tangential velocities, Coal combustion

Аннотация: The effect of two-parameter k-e and k-? SST turbulence models and Reynolds stress model RSM on the description of processes at pulverized coal combustion in a furnace with a swirl burner is calculated in the present work. The mathematical model, which included the description of carrier phase motion based on the RANS approach, calcПоказать полностьюulation of radiation transport through the P1 method, motion of particles based on the Lagrangian approach, combustion in the gas phase based on the hybrid model, and coal particle burning in the diffusion-kinetic approximation, was chosen for calculations. The calculated data were compared with experimental results on combustion of pulverized coal flame in the presence of flow swirl at the fire test bench with capacity of 2.4 MW. Comparative analysis showed that k-epsilon and k-omega SST turbulence models and Reynolds stress model have a little effect on distribution of axial and tangential velocities, temperature, and concentration of gases in the furnace.

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Издание

Журнал: THERMOPHYSICS AND AEROMECHANICS

Выпуск журнала: Vol. 23, Is. 4

Номера страниц: 591-602

ISSN журнала: 08698643

Место издания: NEW YORK

Издатель: MAIK NAUKA/INTERPERIODICA/SPRINGER

Авторы

  • Chernetskiy M.Y. (Ural Federal University)
  • Kuznetsov V.A. (Siberian Federal University)
  • Dekterev A.A. (Kutateladze Institute of Thermophysics SB RAS)
  • Abaimov N.A. (Ural Federal University)
  • Ryzhkov A.F. (Ural Federal University)

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