Abstract
In this present study, the round jet impingement on flat plate is analyzed numerically using four different RANS turbulence models. The four turbulence models considered are k-ω SST, realizable k-ε, RNG k-ε and ν2f. The numerical results in terms of turbulent kinetic energy have been compared with the previously published experimental results for the purpose of validation. It has been observed that ν2f model predicted the variation in turbulent kinetic energy accurately in the wall jet region above the near wall as compared with other models.
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Abbreviations
- Cµ :
-
Model constant
- d :
-
Nozzle diameter
- f :
-
Elliptic relaxation function
- h :
-
Nozzle to plate spacing
- I :
-
Turbulent intensity
- K :
-
Turbulent kinetic energy
- K f :
-
Thermal conductivity of the fluid
- \(\dot{m}\) :
-
Mass flow rate
- P r :
-
Prandtl number
- T j :
-
Jet exit air temperature
- T w :
-
Local wall temperature
- T ∞ :
-
Ambient temperature
- ν 2 :
-
Velocity variance scale
- X and Y:
-
Radial distance from stagnation point
- Z :
-
Vertical distance from the plate
- ε :
-
Turbulent dissipation rate
- ε ss :
-
Emissivity of the stainless steel foil
- µ :
-
Dynamic viscosity of air
- µ t :
-
Turbulent viscosity
- ρ :
-
Density of air
- ω :
-
Specific dissipation rate
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Singh, D., Kango, S. (2020). Fluid Flow Study of Circular Jet Impingement on Flat Plate. In: Parwani, A., Ramkumar, P. (eds) Recent Advances in Mechanical Infrastructure. Lecture Notes in Intelligent Transportation and Infrastructure. Springer, Singapore. https://doi.org/10.1007/978-981-32-9971-9_20
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DOI: https://doi.org/10.1007/978-981-32-9971-9_20
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