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International Journal of Latest Research in Science and Technology

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NUMERICAL MODELING OF TRANSIENT THERMAL MIXING

Research Paper Open Access

International Journal of Latest Research in Science and Technology Vol.3 Issue 2, pp 80-89,Year 2014

NUMERICAL MODELING OF TRANSIENT THERMAL MIXING

Murthy Lakshmiraju, Jie Cui

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Received : 26 April 2014; Accepted : 28 April 2014 ; Published : 30 April 2014

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Abstract

In this paper, transient thermal mixing induced by a sudden transverse injection of a fluid into a main flow of different temperature was studied using the Reynolds Stress Model in the commercial computational fluid dynamics (CFD) software Fluent 6.4. The results obtained were validated with the existing experimental data. It was shown that the flow and temperature fields near the injection point were highly complicated and significant temperature fluctuations were observed in the mixing region. The results indicate that the mixing process depends on the momentum ratio of the main flow to the injection flow.

Key Words   
Numerical Simulation, Transient thermal mixing, Sudden injection, Turbulence, Reynolds Stress Model
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References
  1. A. Schetz, Injection and mixing in turbulent flow, Progress in Astronautics and Aeronautics, American Institute of Aeronautics and Astronautics, New York, v. 68, (1980).
  2. A. Hassan, J. H. Kim, A Navier-Stokes analysis of three-dimensional negatively buoyant jet injected into a hot cross flow, Nuclear Science and Engineering, v. 89, (1), (1985), January, 70-78.
  3. H. Kim, An analytical mixing model for buoyant jet injected into pipe flow, Journal of Heat Transfer, Transactions of ASME, v. 107, (3), (1985), August, 630-635.
  4. Moriya, N. Tanaka, N. Katana, , A. Wada, Effects of Reynolds number and Richardson number on thermal stratification in hot plenum, Nuclear Engineering and Design, v. 99, (1987), 441-451.
  5. Hafner, , L. Wolf, , Derivation of mixing parameters from the HDR-thermal mixing experiments, International Journal of Pressure Vessels and Piping, v. 33, (1), (1988), 41-57.
  6. Konduri, , Transient thermal mixing following sudden transverse injection of a fluid, M.S. Thesis, (1991), Tennessee Technological University, Cookeville, TN, U.S.A.
  7. Khodabaksh, R. Konduri, S.Munukutla, S. Idem, Transient thermal mixing following sudden transverse injection of a fluid, Journal of Thermophysics and Heat Transfer, v. 7, (4), (1993), October-December, 732-734.
  8. Wakamatsu, H. Nei, K. Hashiguchi, Attenuation of temperature fluctuations in thermal striping, Journal of Nuclear Science and Technology, v. 32, (1995), 752-762.
  9. G. Lele, S.K. Gupta, H.S. Kushwaha, V. Venkat Raj, Modelling of thermal and flow stratification for reactor pressure vessel pressurized thermal shock, Nuclear Engineering and Design, v. 212, (2002), 75-84.
  10. Hirota, H. Asano, H. Nakayama, T. Asano, , S. Hirayama, Three dimensional structure of turbulent flow in mixing T- junction, JSME International Journal Series B, v. 49, (4), (2006), 1070-1077.
  11. Fukushima, K. Fukagata, N. Kasagi, H. Noguchi, K. Tanimoto, Numerical and experimental study on turbulent thermal mixing in a T-junction flow, The 6th ASME – JSME Thermal Engineering Joint Conference, (2003) March 16-20.
  12. J. Metzner, U. Wilke, European THERFAT project – thermal fatigue evaluation of piping system “Tee” - connections, Nuclear Engineering and Design, v. 235, (2005), 473-484.
  13. Chapuliot, , C. Gourdin, , T. Payen, , J. P. Magnaud, A. Monavon, Hydro-thermal-mechanical analysis of thermal fatigue in a mixing tee, Nuclear Engineering and Design, v. 235, (5), (2005), February, 575-596.
  14. W. Hu, M. S. Kazimi, LES benchmark study of high cycle temperature fluctuations caused by thermal striping in a mixing tee, International Journal of Heat and Fluid Flow, v.27, (1), (2006), February, 54-64.
  15. Fluent 6.3. Documentation, Fluent, Inc., Lebanon, NH, 2003.
  16. B. Pope, Turbulent Flows, Cambridge University Press, New York, Chapter 11, (2000)
To cite this article

Murthy Lakshmiraju, Jie Cui , " Numerical Modeling Of Transient Thermal Mixing ", International Journal of Latest Research in Science and Technology . Vol. 3, Issue 2, pp 80-89 , 2014


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