Turbulence models impact on the flow and thermal analyses of jet impingement

Accurate numerical reconstruction of heat and mass transfer processes in particular applications, such a jet impingement, is difficult to obtain even with the use of modern computational methods. In the proposed paper, the flow and thermal phenomena occurring during single minijet impingement on the...

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Bibliographic Details
Main Authors: Kura, Tomasz, Fornalik-Wajs, Elżbieta, Wajs, Jan, Kenjeres, Sasa
Format: Conference Proceeding
Language:English
Subjects:
Boundary layers
Computational fluid dynamics
Conservation laws
Energy conservation
Flat surfaces
Fluid flow
Heat exchangers
Heat transfer
Hydrodynamics
Impingement
Jet impingement
Mass transfer
Turbulence models
Turbulent flow
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Summary:Accurate numerical reconstruction of heat and mass transfer processes in particular applications, such a jet impingement, is difficult to obtain even with the use of modern computational methods. In the proposed paper, the flow and thermal phenomena occurring during single minijet impingement on the flat, concave and convex, heated surfaces were considered. Problem of impingement on non-flat surface, still not common and purely described in the literature, can be of big importance in engineering applications, such as the heat exchangers. Numerical analyses, based on the mass, momentum and energy conservation laws, were conducted with the OpenFOAM software. Focus was placed on the proper model construction, in which turbulence and boundary layer modelling was crucial, due to their significance in the heat transfer processes. Analysis of results obtained by RANS models focused mostly on the comparison of turbulent and hydrodynamics parameters.
ISSN:2261-236X
2274-7214
2261-236X
DOI:10.1051/matecconf/201824001016