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Title: Numerical simulation of heat transfer characteristics under semi-confined impinging slot jets
Keywords: Impingement; heat transfer coefficient; turbulence model; CFD; gas-particle flow
Issue Date: 9-May-2004
Source: SHI YULING (2004-05-09). Numerical simulation of heat transfer characteristics under semi-confined impinging slot jets. ScholarBank@NUS Repository.
Abstract: The CFD simulation of impinging jet heat transfer under semi-confined slot jets are presented and discussed. While most results focus on both laminar and turbulent single jets of single phase fluid, simulation results for heat transfer in gas-particle suspension flow for multiple impinging jets are also presented. Initially, simulation results for a single semi-confined turbulent slot jet impinging were compared with published experimental data. The standard k-e and RSM models were used. Effects of boundary conditions, geometry parameters as well as fluid Pr number are discussed. Furthermore, heat transfer under multiple impinging jets of gas-particle suspension flow was predicted using an Eulerian-Lagrangian approach which included a new model to account for the conductive heat transfer contribution due to particle-wall collisions. The numerical results compared reasonably well with available experimental data. A parametric study characterizing the effect of geometric and particle parameters, and boundary conditions on heat transfer was conducted.
Appears in Collections:Ph.D Theses (Open)

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