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022			_a0017-9310
100			_aM.R. Malin _9880249
100			_aB.A. Younis _9880616
245			_aCalculation of Turbulent Buoyant Plumes with a Reynolds Stress and Heat Flux Transport Closure
300			_a2247-2264 p.
520			_aA differential Reynolds stress and heat flux closure is adopted for modelling the turbulent transport of heat and momentum in vertical buoyant free plumes. Modelled transport equations are solved for the turbulent stresses and heat fluxes, the turbulence energy dissipation rate, and the mean-square temperature fluctuations. Closure at this level permits the turbulent transport processes to be treated more exactly than with Boussinesq-type two-equation models which are based on the notion of an effective viscosity and diffusivity. The solution of a transport equation for the thermal dissipation rate, which avoids the need to empirically prescribe the ratio of the thermal and mechanical time scales, is also investigated. The model is applied to the calculation of both self-similar plumes and forced plumes. The results are compared with existing experimental data and are found to be in reasonable agreement with the measured behaviour.
650			_aCalculation _9880617
650			_aTurbulent Buoyant Plumes _9880618
650			_aReynolds Stress _9880619
650			_aHeat Flux Transport Closure _9880620
773	0		_dNew York, U.S.A : Pergamon Subsidiary of Elsevier Science & Technology _x00179310 _tInternational Journal of Heat and Mass Transfer
856			_uhttps://www.sciencedirect.com/science/article/pii/001793109090124D
942			_2ddc _n0 _cART _o14993 _pMr. Muhammad Rafique Al Haj Rajab Ali (Late)
999			_c814908 _d814908