TY  - JOUR
AB  - Purpose This paper aims to study analytically and numerically the problem of transient natural convection heat transfer in a trapezoidal cavity with spatial side-wall temperature variation.Design/methodology/approach The governing equations subject to the initial and boundary conditions are solved numerically by the finite difference scheme consisting of the alternating direction implicit method and the tri-diagonal matrix algorithm. The left sloping wall of the cavity is heated to non-uniform temperature, and the right sloping wall is maintained at a constant cold temperature, while the horizontal walls are kept adiabatic.Findings It is shown that the heat transfer rate increases in non-uniform heating increments, whereby low wave number values are more affected by the convection. The best heat transfer enhancement results from larger side wall inclination angle; however, trapezoidal cavities require longer time compared to that of square to reach steady state.Originality/value The study of natural convection heat transfer in a trapezoidal cavity filled with nanofluid and heated by spatial side-wall temperature has not yet been undertaken. Thus, the authors of the present study believe that this work is valuable.
VL  - 27
IS  - 6
SN  - 0961-5539
DO  - 10.1108/HFF-11-2015-0488
UR  - https://doi.org/10.1108/HFF-11-2015-0488
AU  - Alsabery Ammar I.
AU  - Hashim Ishak
AU  - Chamkha Ali J.
AU  - Saleh Habibis
AU  - Chanane Bilal
PY  - 2017
Y1  - 2017/01/01
TI  - Effect of spatial side-wall temperature variation on transient natural convection of a nanofluid in a trapezoidal cavity
T2  - International Journal of Numerical Methods for Heat & Fluid Flow
PB  - Emerald Publishing Limited
SP  - 1365
EP  - 1384
Y2  - 2024/05/11
ER  -