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Başlık: Numerical investigation of turbulent impinging jet cooling of a constant heat flux surface
Yazarlar: Uludağ Üniversitesi/Mühendislik Fakültesi/Makine Mühendisliği Bölümü.
0000-0001-8022-1185
İşman, Mustafa Kemal
Pulat, Erhan
Etemoğlu, Akın Burak
Can, Muhiddin
ABE-9423-2020
23392727300
23098080300
8221881000
7006114954
Anahtar kelimeler: Low-reynolds-number
K-epsilon models
Flat-plate
Air-jet
Wall-function
Slot jet
Temperature difference
Simulation
Impingement
Thermodynamics
Mechanics
Shear flows
Cooling
Heat flux
Navier stokes equations
Numerical methods
Reynolds number
Turbulent flow
Constant heat flux surface
Property variation
Turbulence intensity effects
Turbulent impinging jet cooling
Jets
Yayın Tarihi: 2008
Yayıncı: Taylor & Francis
Atıf: İşman, M.K. vd. (2008). ''Numerical investigation of turbulent impinging jet cooling of a constant heat flux surface''. Numerical Heat Transfer Part A - Applications, 53(10), 1109-1132.
Özet: In this study, heat transfer characteristics in the single slot jet impinging cooling process of constant heat flux surface are numerically investigated. It is assumed that the flow is turbulent, two-dimensional and in steady state. Governing equations are solved by using Galerkin finite element method by employing five two-equation turbulence models based on Reynolds-averaged Navier-Stokes (RANS) approach. Although the most satisfactory results are obtained with nonlinear algebraic stress model of Shih-Zhu-Lumley in stagnation region, overall performance of RNG and standard k- models are better in comparison with other models by considering entire region. Subsequent computations are performed with RNG and standard k- models for nozzle to plate spacing and Reynolds numbers in the ranges of 4 <= zlD(h)<= 10 and 4000 <= Re <= 12000, respectively. Also, inlet turbulence intensity and heat flux boundary conditions effects on heat transfer are investigated. Property variation and buoyancy effects are considered to decrease possible discrepancy with experimental results and capture the turbulence intensity effects more accurately. Acceptable agreement with the measured values in published literature are obtained and discussed.
URI: https://doi.org/10.1080/10407780701790078
https://www.tandfonline.com/doi/full/10.1080/10407780701790078
http://hdl.handle.net/11452/22824
ISSN: 1040-7782
Koleksiyonlarda Görünür:Scopus
Web of Science

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