The week's pick
Random Articles
Reseach Article
Two-Dimensional Natural Convection Heat Transfer from a Heated Plate Immersed in a Thermally Stratified Medium: Numerical and Experimental Study
| International Journal of Computer Applications |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 179 - Number 2 |
| Year of Publication: 2017 |
| Authors: Naseem Ali, Ihsan Y. Hussain |
10.5120/ijca2017915866
|
Naseem Ali, Ihsan Y. Hussain . Two-Dimensional Natural Convection Heat Transfer from a Heated Plate Immersed in a Thermally Stratified Medium: Numerical and Experimental Study. International Journal of Computer Applications. 179, 2 ( Dec 2017), 1-8. DOI=10.5120/ijca2017915866
Abstract
The effect of thermal stratification in stable stationary ambient fluid on free convective flow of a viscous incompressible fluid along a plane wall is numerically and experimentally investigated in the present work. The governing equations of continuity, momentum and energy are solved numerically using finite difference method with Alternating Direct Implicit scheme. The velocity, temperature distributions and the Nusselt number are discussed numerically for various values of physical parameters and presented through graphs. Experiments are carried out in an apparatus, consisting of a square Perspex aquarium and heated plate. The measurements are conducted using 12 channel temperature recorders. The temperature profiles and Nusselt number for stratified and unstratified media are compared with corresponding numerical solution and good agreement is obtained. The results show that the thickness of the thermal boundary layer is approximately independent of downstream coordinates.
References
- T. E. Ahmed. Transient natural convection heat transfer from a plane wall to a thermally stratified media. PhD thesis, M. Sc. Thesis, University of Technology, Baghdad, 2005.
- D. Angirasa and J. Srinivasan. Natural convection heat transfer from an isothermal vertical surface to a stable thermally stratified fluid. Journal of heat transfer, 114(4):917–923, 1992.
- R. Cheesewright. Natural convection from a plane, vertical surface in non-isothermal surroundings. International journal of Heat and Mass transfer, 10(12):1847–1859, 1967.
- C. C. Chen and R. Eichhorn. Natural convection from a vertical surface to a thermally stratified fluid. Journal of Heat Transfer, 98(3):446–451, 1976.
- R. K. Deka and B. C. Neog. Unsteady natural convection flow past an accelerated vertical plate in a thermally stratified fluid. Theoretical and Applied Mechanics, 36(4):261–274, 2009.
- J. P. Holman and W. J. Gajda. Experimental methods for engineers, volume 7. McGraw-Hill New York, 2001.
- I. Y. Hussain and N. K. Ali. Natural convection heat transfer from a plane wall to thermally stratified environment. J. of Engineering, (2):223–238, 2012.
- A. Ishak, R. Nazar, and I. Pop. Mixed convection boundary layer flow adjacent to a vertical surface embedded in a stable stratified medium. International Journal of Heat and Mass Transfer, 51(13):3693–3695, 2008.
- Y. Jaluria and K. Himasekhar. Buoyancy-induced two-dimensional vertical flows in a thermally stratified environment. Computers & Fluids, 11(1):39–49, 1983.
- A. K. Kulkarni, H. R. Jacobs, and J. J. Hwang. Similarity solution for natural convection flow over an isothermal vertical wall immersed in thermally stratified medium. International journal of heat and mass transfer, 30(4):691–698, 1987.
- A. Pantokratoras. A note on the nusselt number adjacent to a vertical isothermal plate immersed in thermally stratified water at low temperatures. International journal of heat and fluid flow, 24(2):278–281, 2003.
- S. C. Saha and M. A. Hossain. Natural convection flow with combined buoyancy effects due to thermal and mass diffusion in a thermally stratified media. Nonlinear Analysis, 9(1):89–102, 2004.
- G. Singh, P. R. Sharma, and A. J. Chamkha. Effect of thermally stratified ambient fluid on mhd convective flow along a moving non-isothermal vertical plate. International Journal of Physical Sciences, 5(3):208–215, 2010.
- J. Tanny and J. Cohen. The mean temperature field of a buoyancyinduced boundary layer adjacent to a vertical plate immersed in a stratified medium. International journal of heat and mass transfer, 41(14):2125–2130, 1998.
- K. T. Yang, J. L. Novotny, and Y. S. Cheng. Laminar free convection from a nonisothermal plate immersed in a temperature stratified medium. International journal of Heat and Mass transfer, 15(5):1097–1109, 1972.
Index Terms
Keywords