An analytical study of pulsating laminar heat convection in a circular tube with constant heat flux

Pulsating laminar convection heat transfer in a circular tube with constant wall heat flux is investigated analytically. The results show that both the temperature profile and the Nusselt number fluctuate periodically about the solution for steady laminar convection, with the fluctuation amplitude depending on the dimensionless pulsation frequency, ω*, the amplitude, γ, and the Prandtl number, Pr. It is also shown that pulsation has no effect on the time-average Nusselt numbers for pulsating convection heat transfer in a circular tube with constant wall heat flux.

[1]  Zeng-Yuan Guo,et al.  Mechanism and control of convective heat transfer , 2001 .

[2]  Malcolm R. Mackley,et al.  Experimental heat transfer measurements for pulsatile flow in baffled tubes , 1990 .

[3]  Jae Min Hyun,et al.  Numerical solutions of pulsating flow and heat transfer characteristics in a pipe , 1990 .

[4]  Tianshou Zhao,et al.  The Friction Coefficient of A Fully-Developed Laminar Reciprocating Flow in a Circular Pipe , 1996 .

[5]  Tianshou Zhao,et al.  Experimental studies on the onset of turbulence and frictional losses in an oscillatory turbulent pipe flow , 1996 .

[6]  Malcolm R. Mackley,et al.  Heat transfer and associated energy dissipation for oscillatory flow in baffled tubes , 1995 .

[7]  H. Hemida,et al.  Theoretical analysis of heat transfer in laminar pulsating flow , 2002 .

[8]  Tianshou Zhao,et al.  Oscillatory Heat Transfer in a Pipe Subjected to a Laminar Reciprocating Flow , 1996 .

[9]  Mohammad Faghri,et al.  Heat transfer with laminar pulsating flow in a pipe , 1979 .

[10]  E. G. Richardson,et al.  The transverse velocity gradient near the mouths of pipes in which an alternating or continuous flow of air is established , 1929 .

[11]  J. Hyun,et al.  Heat transfer in the thermally developing region of a pulsating channel flow , 1993 .

[12]  G. Antonini,et al.  Amelioration du transfert convectif de chaleur par l'écoulement pulse dans un fluide visqueux , 1994 .

[13]  T. Moschandreou,et al.  Heat transfer in a tube with pulsating flow and constant heat flux , 1997 .

[14]  P. Cheng,et al.  A numerical solution of laminar forced convection in a heated pipe subjected to a reciprocating flow , 1995 .

[15]  Shigeo Uchida,et al.  The pulsating viscous flow superposed on the steady laminar motion of incompressible fluid in a circular pipe , 1956 .

[16]  P. Cheng,et al.  Oscillatory pressure drops through a woven-screen packed column subjected to a cyclic flow , 1996 .

[17]  R. Siegel,et al.  Heat Transfer for Pulsating Laminar Duct Flow , 1962 .