Experiments and computations were performed to determine the local heat transfer in radial flows between parallel concentric disks. The flow is supplied axially by a feeding orifice placed in one of the disks and becomes radial after being deflected by the frontal disk. The frontal disk is kept isothermal and the other solid surfaces washed by the flow are kept adiabatic. Local heat transfer coefficients were determined using the naphthalene sublimation technique and the analogy between heat and mass transfer. Computations were performed using a finite volume methodology. The local Nusselt number distribution showed a valley at the stagnant region in front of the feeding orifice and a peak at the diffuser entrance where the flow impinges on the frontal disk prior to becoming radial. Depending on the Reynolds number and on the gap between the disks a secondary peak was observed in the diffuser region. The secondary peak is believed to be caused by nonparallelism or unsteadiness of the flow field and was not captured by the numerical model.
Skip Nav Destination
Article navigation
Research Papers
Local Heat Transfer in Axially Feeding Radial Flow Between Parallel Disks
A. T. Prata,
A. T. Prata
Department of Mechanical Engineering, Federal University of Santa Catarina, 88040-900 Floriano´polis, SC—Brazil
Search for other works by this author on:
C. D. M. Pilichi,
C. D. M. Pilichi
Department of Mechanical Engineering, Federal University of Santa Catarina, 88040-900 Floriano´polis, SC—Brazil
Search for other works by this author on:
R. T. S. Ferreira
R. T. S. Ferreira
Department of Mechanical Engineering, Federal University of Santa Catarina, 88040-900 Floriano´polis, SC—Brazil
Search for other works by this author on:
A. T. Prata
Department of Mechanical Engineering, Federal University of Santa Catarina, 88040-900 Floriano´polis, SC—Brazil
C. D. M. Pilichi
Department of Mechanical Engineering, Federal University of Santa Catarina, 88040-900 Floriano´polis, SC—Brazil
R. T. S. Ferreira
Department of Mechanical Engineering, Federal University of Santa Catarina, 88040-900 Floriano´polis, SC—Brazil
J. Heat Transfer. Feb 1995, 117(1): 47-53 (7 pages)
Published Online: February 1, 1995
Article history
Received:
March 1, 1993
Revised:
March 1, 1994
Online:
December 5, 2007
Citation
Prata, A. T., Pilichi, C. D. M., and Ferreira, R. T. S. (February 1, 1995). "Local Heat Transfer in Axially Feeding Radial Flow Between Parallel Disks." ASME. J. Heat Transfer. February 1995; 117(1): 47–53. https://doi.org/10.1115/1.2822321
Download citation file:
Get Email Alerts
Cited By
Entropic Analysis of the Maximum Output Power of Thermoradiative Cells
J. Heat Mass Transfer
Molecular Dynamics Simulations in Nanoscale Heat Transfer: A Mini Review
J. Heat Mass Transfer
Related Articles
Effect of Flow Angle-of-Attack on the Local Heat/Mass Transfer From a Wall-Mounted Cube
J. Heat Transfer (August,1994)
Local Heat/Mass Transfer Distributions on the Surface of a Wall-Mounted Cube
J. Heat Transfer (November,1991)
Effect of Boundary Conditions on Mass Transfer Near the Base of a Cylinder in Crossflow
J. Heat Transfer (May,1990)
Experimental Investigation of Heat Transfer and Flow Over Baffles of Different Heights
J. Heat Transfer (May,1994)
Related Proceedings Papers
Related Chapters
Hydraulic Resistance
Heat Transfer & Hydraulic Resistance at Supercritical Pressures in Power Engineering Applications
Heat Transfer Enhancement by Using Nanofluids in Laminar Forced Convection Flows Considering Variable Properties
Proceedings of the 2010 International Conference on Mechanical, Industrial, and Manufacturing Technologies (MIMT 2010)
Blowin' in the Wind
Hot Air Rises and Heat Sinks: Everything You Know about Cooling Electronics Is Wrong