ABSTRACT
In this work, the three-dimensional natural convection in a cubical cavity due to a partially heated vertical sidewall has been investigated numerically using the finite volume method. Six isothermal parts at a hot temperature are considered and distributed with three different arrangements on a vertical wall of the cubical cavity. In case I, the number of these hot isothermal parts increases from the bottom to the top of this wall: one, two then three parts (1x2x3). Case III is the opposite of the first (3x2x1). Case II is an intermediate situation between the two first ones: that is (2x2x2). The opposite vertical sidewall is maintained at a cold temperature and the other sidewalls are supposed to be adiabatic. The number of Pr is fixed at 0.71 whereas the number of Ra varies between 103 to 106. The results of the simulation show that case II leads to a more important heat transfer compared to the two other studied cases.
- Hu Y., He Y., Qi C., Jiang B., Schlaberg, H.I.: Experimental and numerical study of natural convection in a square enclosure filled with nanofluid. International Journal of Heat and Mass Transfer 78, 380--392 (2014).Google ScholarCross Ref
- Gangawane K.M., Bharti R.P., Kumar S.: Two-dimensional lattice boltzmann simulation of natural convection in differentially heated square cavity: effect of prandtl and rayleigh numbers. The Canadian Journal of Chemical Engineering 93, 766--780 (2015).Google ScholarCross Ref
- Baïri A., Zarco-Pernia E., De María J.-M.G.: A review on natural convection in enclosures for engineering applications. The particular case of the parallelogrammic diode cavity. Appl Therm Eng 63, 304--322 (2014).Google ScholarCross Ref
- Kane M.K., Mbow C., Sow M.L., Sarr J.: A study on natural convection of air in a square cavity with partially thermally active side walls. Open Journal of Fluid Dynamics 7, 623--641 (2017).Google ScholarCross Ref
- Corvaro F., Paroncini M., Sotte M.: Experimental PIV and interferometric analysis of natural convection in a square enclosure with partially active hot and cold Walls. Int. J. Therm. Sci. 50, 1629--1638 (2011).Google ScholarCross Ref
- Paroncini M., Corvaro F., Montucchiari A., Nardini G.: A numerical and experimental analysis on natural convective heat transfer in a square enclosure with partially active side walls. Exp. Therm. Fluid Sci. 36, 118--125 (2012).Google ScholarCross Ref
- He Y.L., Yang W.W., Tao W.Q.: Three dimensional numerical study of natural convective heat transfer of liquid in a cubic enclosure. Numerical Heat Transfer, Part A, 47, 917--934 (2005).Google ScholarCross Ref
- Al-Rashed A.A.A.A., Kolsi L., Hussein A.K., Hassen W., Aichouni M., Borjini M.N.: Numerical study of three-dimensional natural convection and entropy generation in a cubical cavity with partially active vertical walls. Case Studies in Thermal Engineering 10, 100--110 (2017).Google ScholarCross Ref
- Gibanov N., Sheremet M.: Unsteady natural convection in a cubical cavity with a triangular heat source. International Journal of Numerical Methods for Heat & Fluid Flow 27, 1795--1813 (2017).Google ScholarCross Ref
- Wakashima S., Saitoh T.S.: Benchmark solutions for natural convection in a cubic cavity using the high-order time-space method. Int. J. Heat Mass Transf. 47, 853--864 (2004).Google ScholarCross Ref
- Tric E., Labrosse G., Betrouni M.: A first incursion into the 3D structure of natural convection of air in a differentially heated cubic cavity, from accurate numerical solutions. International Journal Heat Mass Transfer 43, 4043--4056 (2000).Google ScholarCross Ref
Index Terms
- Numerical Study of Three-Dimensional Natural Convection in a Cubical Cavity with Partially Heated Vertical Wall
Recommendations
Three-dimensional study of combined natural convection and conduction in a cubical cavity: effect of the angle of inclination
SCA '19: Proceedings of the 4th International Conference on Smart City ApplicationsIn this study, combined heat transfer by natural convection and conduction in a cubical cavity surrounded by solid walls are investigated numerically. The right vertical wall is heated by an isothermal temperature Th while the left wall is kept at a ...
Natural convection in unsteady Couette flow between two vertical parallel plates in the presence of constant heat flux and radiation
MACMESE'09: Proceedings of the 11th WSEAS international conference on Mathematical and computational methods in science and engineeringAn exact analysis of the natural convection in unsteady Couette flow of a viscous incompressible fluid confined between two vertical parallel plates in the presence of thermal radiation is performed. The flow is induced by means of Couette motion and ...
Numerical study of periodically heated wall effect on natural convection in an enclosure
AbstractThe present numerical study focuses on sinusoidal heating and aspect ratio effects on heat flow of free convection of fluid inside the enclosure. The side walls are maintained at ambient temperature and the middle horizontal wall that ...
Comments