The numerical simulation of turbulent offset jet flow has been carried out using k–ω shear stress transport (SST) model. The simulations have been done for the offset jet flow in the quiescent medium and also in the presence of an external stream. The effect of freestream velocity on the flow and heat transfer characteristics of turbulent offset jet has been reported. The offset ratio and Reynolds number of flow considered are 5.7 and 16,000, respectively. The presence of coflow stream has been found to reduce the entrainment of surrounding fluid into the jet which in turn reduces the heat transfer from the jet to the surrounding medium. The effect of freestream velocity on the important parameters like decay of the local maximum streamwise velocity, jet spread, reattachment length, velocity logarithmic profile, velocity defect law profile, decay of the local maximum streamwise temperature, variation of wall temperature, temperature similarity profile, and Nusselt number distribution has been discussed.
Issue Section:
Research Papers
References
1.
Gaskin
, S.
, and Wood
, I. R.
, 2001
, “The Axisymmetric and the Plane Jet in a Coflow
,” J. Hydraul. Res.
, 39
(5
), pp. 451
–458
.2.
Antoine
, Y.
, Lemoine
, F.
, and Lebouche
, M.
, 2001
, “Turbulent Transport of a Passive Scalar in a Round Jet Discharging Into a Co-Flowing Stream
,” Eur. J. Mech. B/Fluids
, 20
(2
), pp. 275
–301
.3.
Habli
, S.
, Said
, N. M.
, Mahmoud
, H.
, Mhiri
, H.
, Palec
, G. L.
, and Bournot
, P.
, 2008
, “Influence of a Coflowing Ambient Stream on a Turbulent Axisymmetric Buoyant Jet
,” ASME J. Heat Transfer
, 130
(2
), p. 022201
.4.
Antonia
, R. A.
, and Bilger
, R. W.
, 1973
, “An Experimental Investigation of an Axisymmetric Jet in a Coflowing Air Stream
,” J. Fluid Mech.
, 61
(4
), pp. 805
–822
.5.
Bradbury
, L. J. S.
, and Riley
, J.
, 1967
, “The Spread of a Turbulent Plane Jet Issuing Into a Parallel Moving Airstream
,” J. Fluid Mech.
, 27
(2
), pp. 381
–394
.6.
Maczynski
, J. F. J.
, 1962
, “A Round Jet in an Ambient Co-Axial Stream
,” J. Fluid Mech.
, 13
(4
), pp. 597
–608
.7.
Habli
, S.
, Saïd
, N. M.
, Palec
, G. L.
, and Bournot
, H.
, 2014
, “Numerical Study of a Turbulent Plane Jet in a Coflow Environment
,” Comput. Fluids
, 29
, pp. 20
–28
.8.
Deo
, R. C.
, Nathan
, G. J.
, and Mi
, J.
, 2007
, “Comparison of Turbulent Jets Issuing From Rectangular Nozzles With and Without Sidewalls
,” Exp. Therm. Fluid Sci.
, 32
(2
), pp. 596
–606
.9.
Kruka
, V.
, and Eskinazi
, S.
, 1964
, “The Walljet in a Moving Stream
,” J. Fluid Mech.
, 20
(4
), pp. 555
–579
.10.
Nickels
, T. B.
, and Perry
, A. E.
, 1996
, “An Experimental and Theoretical Study of the Turbulent Coflowing Jet
,” J. Fluid Mech.
, 309
, pp. 157
–182
.11.
Irwin
, H. P. A. H.
, 1973
, “Measurements in a Self-Preserving Plane Wall Jet in a Positive Pressure Gradient
,” J. Fluid Mech.
, 61
(1
), pp. 33
–63
.12.
Campbell
, J. F.
, 1975
, “Turbulent Wall Jet in a Coflowing Stream
,” NASA Technical Note Report No. NASA TN D-8025.13.
Escudier
, M. P.
, and Nicoll
, W. B.
, 1966
, “The Entrainment Function in Turbulent Boundary-Layer and Wall-Jet Calculations
,” J. Fluid Mech.
, 25
(2
), pp. 337
–366
.14.
Dakos
, T.
, Verriopoulos
, C. A.
, and Gibson
, M. M.
, 1984
, “Turbulent Flow With Heat Transfer in Plane and Curved Wall Jets
,” J. Fluid Mech.
, 145
, pp. 339
–360
.15.
Hoch
, J.
, and Jiji
, L. M.
, 1981
, “Two-Dimensional Turbulent Offset Jet-Boundary Interaction
,” ASME J. Fluid Eng.
, 103
(1
), pp. 154
–161
.16.
Hoch
, J.
, and Jiji
, L. M.
, 1981
, “Theoretical and Experimental Temperature Distribution in Two-Dimensional Turbulent Jet-Boundary Interaction
,” ASME J. Heat Transfer
, 103
(2
), pp. 331
–335
.17.
Menter
, F. R.
, 2009
, “Review of the Shear-Stress Transport Turbulence Model Experience From an Industrial Perspective
,” Int. J. Comput. Fluid Dyn.
, 23
(4
), pp. 305
–316
.18.
Bardina
, J. E.
, Huang
, P. G.
, and Coakley
, T. J.
, 1997
, “Turbulence Modeling Validation, Testing and Development
,” NASA Technical Memorandum Technical Report No. 110446, Ames Research Center.19.
Hofmann
, H. M.
, Kaiser
, R.
, Kind
, M.
, and Martin
, H.
, 2007
, “Calculations of Steady and Pulsating Impinging Jets: An Assessment of 13 Widely Used Turbulence Models
,” Numer. Heat Transfer, Part B
, 51
(6
), pp. 565
–583
.20.
Wilcox
, D. C.
, 1988
, “Reassessment of the Scale-Determining Equation for Advanced Turbulence Models
,” Am. Inst. Aeronaut. Astronaut. J.
, 26
(11
), pp. 1299
–1310
.21.
Mentor
, F. R.
, 1992
, “Improved Two-Equation k–ω Turbulence Models for Aerodynamic Flows
,” NASA Technical Memorandum Technical Report No. 103975, Ames Research Center.
22.
Menter
, F. R.
, 1994
, “Two-Equation Eddy-Viscosity Turbulence Models for Engineering Applications
,” Am. Inst. Aeronaut. Astronaut. J.
, 32
(8
), pp. 1598
–1605
.23.
Menter
, F. R.
, Kuntz
, M.
, and Langtry
, R.
, 2003
, “Ten Years of Industrial Experience With the SST Turbulence Model
,” Turbul. Heat Mass Transfer
, 4
.24.
Biswas
, G.
, and Eswaran
, V.
, 2002
, Turbulent Flows: Fundamentals, Experiments and Modeling
(IIT Kanpur Series of Advanced Texts), Narosa Publishing House
, New Delhi, India
.25.
van Doormaal
, J. P.
, and Raithby
, G. D.
, 1984
, “Enhancements of SIMPLE Method for Predicting Incompressible Fluid Flows
,” Numer. Heat Transfer, Part A
, 7
, pp. 147
–163
.26.
Patankar
, S. V.
, 1980
, Numerical Heat Transfer and Fluid Flow
, Hemisphere
, New York
.27.
Versteeg
, H. K.
, and Malalasekera
, W.
, 1996
, “An Introduction to Computational Fluid Dynamics
,” The Finite Volume Method
, Addison-Wesley Longman
, London
.28.
Nizou
, P. Y.
, and Tida
, T.
, 1995
, “Transferts de chaleur et de quantité de mouvement dans les jets pariétaux plans turbulents
,” Int. J. Heat Mass Transfer
, 38
(7
), pp. 1187
–1200
.29.
Wygnanski
, I.
, Katz
, Y.
, and Horev
, E.
, 1992
, “On the Applicability of Various Scaling Laws to the Turbulent Wall Jet
,” J. Fluid Mech.
, 234
, pp. 669
–690
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