Analysis of Laminar Forced Convection of Air Crossflow in In-Line Tube Banks with NonSquare Arrangements

ABSTRACT Numerical analysis is made of forced-convection heat transfer in laminar two-dimensional steady crossflow in banks of plain tubes in square and nonsquare in-line arrangements. A finite-volume method with a nonorthogonal, boundary-fitted grid and co-located variable storage is used to solve the Navier–Stokes equations and energy conservation equation for a tube bundle with five longitudinal rows, including inlet and outlet sections. Local and overall heat transfer and fluid flow results are presented at combinations of transverse and longitudinal pitch-to-diameter ratios of 1.25, 1.5, and 2.0 at Reynolds numbers of 100 and 300 for a Prandtl number of 0.71. A comparison of the present study results with well-established experiments and empirical correlations showed good overall agreement. New equations are proposed for a correction factor for the effects of nonsquare arrangements on average friction factor.

[1]  R. P. Chhabra,et al.  Forced convection heat transfer in tube banks in cross flow , 2002 .

[2]  K. L. Wong,et al.  The finite element solutions of laminar flow and combined convection of air in a staggered or an in-line tube-bank , 1988 .

[3]  K. N. Seetharamu,et al.  Finite element simulation of transient laminar flow and heat transfer past an in-line tube bank , 1998 .

[4]  J. N. Reddy,et al.  Penalty finite-element analysis of coupled fluid flow and heat transfer for in-line bundle of cylinders in cross flow , 1986 .

[5]  Y. Q. Wang, L. A. Penner, S. J. Ormiston.  ANALYSIS OF LAMINAR FORCED CONVECTION OF AIR FOR CROSSFLOW IN BANKS OF STAGGERED TUBES , 2000 .

[6]  J. Cleaver,et al.  Finite element solutions of laminar flow and heat transfer of air in a staggered and an in-line tube bank , 1986 .

[7]  V. Gnielinski,et al.  Pressure drop in cross flow across tube bundles , 1985 .

[8]  V. Gnielinski,et al.  Equations for calculating heat transfer in single tube rows and banks of tubes in transverse flow , 1979 .

[9]  Masud Behnia,et al.  Numerical laminar and turbulent fluid flow and heat transfer predictions in tube banks , 1995 .

[10]  K. A. Antonopoulos.  Heat transfer in tube assemblies under conditions of laminar axial, transverse and inclined flow , 1985 .

[11]  Frank P. Incropera,et al.  Fundamentals of Heat and Mass Transfer , 1981 .

[12]  M. Khalil Bassiouny,et al.  Modeling of heat transfer for flow across tube banks , 2000 .

[13]  Ching-Jen Chen,et al.  Finite Analytic Solution of Convective Heat Transfer for Tube Arrays in Crossflow: Part II—Heat Transfer Analysis , 1989 .

[14]  Yeon S. Chang,et al.  A numerical study of heat and momentum transfer for tube bundles in crossflow , 1989 .

[15]  K. N. Seetharamu,et al.  Finite element analysis of mixed convection over in-line tube bundles , 1998 .

[16]  C. Rhie,et al.  Numerical Study of the Turbulent Flow Past an Airfoil with Trailing Edge Separation , 1983 .

[17]  Motoo Fujii,et al.  A NUMERICAL ANALYSIS OF LAMINAR FLOW AND HEAT TRANSFER OF AIR IN AN IN-LINE TUBE BANK , 1984 .

[18]  A. Zukauskas.  Heat Transfer from Tubes in Crossflow , 1972 .

[19]  M. Faghri,et al.  Numerical computation of flow and heat transfer in finned and unfinned tube banks , 1987 .

[20]  T. H. Hwang,et al.  A simple heat transfer correlation for cross flow in tube bundles , 1986 .

[21]  J. P. V. Doormaal,et al.  ENHANCEMENTS OF THE SIMPLE METHOD FOR PREDICTING INCOMPRESSIBLE FLUID FLOWS , 1984 .