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Numerical Simulation of Vertical Buoyant Jets Discharged from Multiport Diffusers and the Influences of Port Spacing on the Mixing Processes

Author(s): Majid Mohammadian

Linked Author(s): Majid Mohammadian

Keywords: Numerical simulation; Mixing properties; Multiport diffusors; Port spacing; Vertical buoyant jets;

Abstract: In the present study, the flow and mixing properties of vertical buoyant jets discharged from multiport diffusers are studied numerically. The performances of four different turbulence models are investigated: including the standard k-ε, RNG k-ε turbulence model, k-ω turbulence model, and the k-ω SST turbulence models. The comparisons between the simulated and experimental results demonstrate that the RNG k-ε turbulence model can provide the most accurate predictions. The RNG k-ε model is utilized to carry out additional simulations with different values of port spacing, and the effects of the port spacing is investigated.

DOI: https://doi.org/10.3850/38WC092019-1078

Year: 2019

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