Heat transfer and flow field in a pipe with sinusoidal wavy surface—II. Experimental investigation

In Part I of this paper the heat and mass transfer in a pipe with a wavy surface was studied numerically. To validate the predictions and to close the gap in the Reynolds number range 400 < Redm < 2000, where a numerical simulation of the transitional flow structure was not possible, an experimental investigation was performed. Applying the naphthalene sublimation technique, the local mass transfer was studied along the axis of the pipe. Using analogy functions, the measured Sherwood numbers were transformed into Nusselt numbers. In addition to the results of the mass transfer measurements this paper also presents flow visualization experiments.

[1]  T. Nishimura,et al.  MASS TRANSFER ENHANCEMENT IN CHANNELS WITH A WAVY WALL , 1986 .

[2]  Ephraim M Sparrow,et al.  Numerical solutions for laminar flow and heat transfer in a periodically converging-diverging tube, with experimental confirmation , 1983 .

[3]  R. Wirtz,et al.  Heat Transfer Augmentation Through Wall-Shape-Induced Flow Destabilization , 1990 .

[4]  T. Nishimura,et al.  Mass transfer characteristics in a channel with symmetric wavy wall for steady flow. , 1985 .

[5]  Thomas F. Irvine,et al.  Measurement of the diffusion coefficient of naphthalene into air , 1992 .

[6]  B. Launder,et al.  On the calculation of turbulent heat transport downstream from an abrupt pipe expansion , 1980 .

[7]  Klaus Bremhorst,et al.  A Modified Form of the k-ε Model for Predicting Wall Turbulence , 1981 .

[8]  H. Hausen,et al.  Erweiterte Gleichung für den Wärmeübergang in Rohren bei turbulenter Strömung , 1974 .

[9]  I. Flügge-Lotz,et al.  The interaction of a shock wave with a laminar boundary layer , 1968 .

[10]  Marcel Lesieur,et al.  Turbulence in fluids , 1990 .

[11]  T. Nishimura,et al.  Flow characteristics in a channel with symmetric wavy wall for steady flow. , 1984 .

[12]  B. Mikic,et al.  Numerical investigation of incompressible flow in grooved channels. Part 1. Stability and self-sustained oscillations , 1986, Journal of Fluid Mechanics.

[13]  Hiroyuki Ozoe,et al.  Correlations for Laminar Forced Convection in Flow Over an Isothermal Flat Plate and in Developing and Fully Developed Flow in an Isothermal Tube , 1973 .

[14]  Anthony T. Patera,et al.  Numerical investigation of incompressible flow in grooved channels. Part 2. Resonance and oscillatory heat-transfer enhancement , 1986, Journal of Fluid Mechanics.

[15]  C. Yap.  Turbulent heat and momentum transfer in recirculating and impinging flows , 1987 .