Numerical simulations of laminar stagnation-region heat transfer in the presence of freestream disturbances are performed. The sensitivity of heat transfer in stagnation-region to freestream vorticity is scrutinized by varying the length scale, amplitude, and Reynolds number. As an organized inflow disturbance, a spanwise sinusoidal variation is superimposed on the velocity component normal to the wall. An accurate numerical scheme is employed to integrate the compressible Navier-Stokes equations and energy equation. The main emphasis is placed on the length scale of laminar inflow disturbances, which maximizes the heat transfer enhancement. Computational results are presented to disclose the detailed behavior of streamwise vortices. Three regimes of the behavior are found depending on the length scale: these are the “damping,” “attached amplifying,” and “detached amplifying” regimes, respectively. The simulation data are analyzed with an experimental correlation. It is found that the present laminar results follow a general trend of the correlation. [S0022-1481(00)01102-6]
Skip Nav Destination
Article navigation
Technical Papers
Influence of Inflow Disturbances on Stagnation-Region Heat Transfer
S. Bae,
S. Bae
Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Taejon 305-701, Korea
Search for other works by this author on:
S. K. Lele,
S. K. Lele
Department of Mechanical Engineering, Stanford University, Stanford, CA 94309
Search for other works by this author on:
H. J. Sung
H. J. Sung
Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Taejon 305-701, Korea
Search for other works by this author on:
S. Bae
Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Taejon 305-701, Korea
S. K. Lele
Department of Mechanical Engineering, Stanford University, Stanford, CA 94309
H. J. Sung
Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Taejon 305-701, Korea
Contributed by the Heat Transfer Division for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received by the Heat Transfer Division, February 27, 1999; revision received, November 29, 1999. Associate Technical Editor: R. Douglass.
J. Heat Transfer. May 2000, 122(2): 258-265 (8 pages)
Published Online: November 29, 1999
Article history
Received:
February 27, 1999
Revised:
November 29, 1999
Citation
Bae, S., Lele, S. K., and Sung, H. J. (November 29, 1999). "Influence of Inflow Disturbances on Stagnation-Region Heat Transfer ." ASME. J. Heat Transfer. May 2000; 122(2): 258–265. https://doi.org/10.1115/1.521486
Download citation file:
Get Email Alerts
Cited By
Related Articles
Numerical Investigations of Turbulent Inflow Condition Generation for LES
J. Fluids Eng (September,2005)
Large Eddy Simulations of Flow and Heat Transfer in Rotating Ribbed Duct Flows
J. Heat Transfer (May,2005)
Numerical Simulation of Two-Dimensional Laminar Incompressible Wall Jet Flow Under Backward-Facing Step
J. Fluids Eng (September,2006)
Kinematic Laplacian Equation Method: A Velocity-Vorticity Formulation for the Navier-Stokes Equations
J. Appl. Mech (November,2006)
Related Chapters
The Design and Implement of Remote Inclinometer for Power Towers Based on MXA2500G/GSM
International Conference on Mechanical and Electrical Technology, 3rd, (ICMET-China 2011), Volumes 1–3
Laminar Fluid Flow and Heat Transfer
Applications of Mathematical Heat Transfer and Fluid Flow Models in Engineering and Medicine
Coupling a Numerical Optimization Technique with a Panel Method or a Vortex Lattice Method to Design Cavitating Propellers in Non-Uniform Inflows
Proceedings of the 10th International Symposium on Cavitation (CAV2018)