Computational Fluid Dynamics Analysis of Buoyancy Flow in A Differentially Heated Square Cavity

Presents an analysis of the conjugate heat transfer in a differentially heated square cavity.
An excerpt of my final project research presented at the International Conference on Engineering for Sustainable World, Covenant University, Ota.

Transcript

1. Computational Fluid Dynamics Analysis of Buoyancy Flow in A Differentially Heated Square Cavity O.A. Olayemi, J.T Olabemiwo, T. S. Jolayemi, K. O. Oladosu, C. Odetunde and I. K. Adegun International Conference on Engineering for a Sustainable World Presented by: Jekayin-Oluwa Olabemiwo Aeronautical & Astronautical Engineering Senior Kwara State University
2. Abstract
3. Physical model Mesh distribution Model Considered
4. Continuity: X-Momentum: Y-Momentum: Energy: Normalization Parameters Governing Equations (Normalized)
5. Computational Procedure
6. Ra Present Study De Vahl Davies Al-Balushi Tiwari & Das 1 × 102 1.002 NIL NIL NIL 5 × 102 1.034 NIL NIL NIL 1 × 103 1.118 1.118 1.118 1.087 5 × 103 1.789 NIL NIL Nil 1 × 104 2.245 2.243 2.274 2.195 5 × 104 3.667 NIL NIL NIL 1 × 105 4.521 4.519 4.964 4.450 Results and Discussion
9. Results: Velocity Streamlines
10. Results: Isothermal Contours
11. o For natural convection in configurations similar to the one investigated, it is advisable to use fluids of low Prandtl number such as air or water which are readily available and cheaper as compared to fluids of higher Prandtl number which implies higher cost but give marginal increase in the overall heat transfer. o The influence of Prandtl number on velocity stream and isotherms is found to be negligible o Nusselt number depends on Rayleigh number. Conclusion