Effect of sudden constriction of a flat duct on forced convection in a turbulent droplet-laden mist flow
نویسندگان
چکیده
Numerical modeling of the flow structure and heat transfer in a gas-droplet turbulent duct with forward-facing step is carried out. The two-dimensional RANS equations are used numerical solution. Eulerian two-fluid approach for describing dynamics gaseous dispersed phases. turbulence carrier phase described using an elliptical Reynolds stress model taking presence phase. It shown that finely-dispersed droplets involved separation recirculation motion gas addition evaporating to single-phase leads significant intensification (more than 2 times) compared air flow, all other parameters being equal. This effect enhanced increase initial mass fraction water droplets. Keywords: simulation, transport model, step, droplet evaporation, turbulence, enhancement.
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ژورنال
عنوان ژورنال: Pis?ma v Žurnal tehni?eskoj fiziki
سال: 2023
ISSN: ['1726-7471', '0320-0116']
DOI: https://doi.org/10.21883/tpl.2023.04.55868.19453