Author(s):
1. Sadoon Ayed, Univerzitet u Nišu, Mašinski fakultet, Serbia
2. Milos Jovanovic, Univerzitet u Nišu, Mašinski fakultet, Serbia
3. Gradimir Ilić, Univerzitet u Nišu, Mašinski fakultet, Serbia
4. Predrag Živković, Univerzitet u Nišu, Mašinski fakultet, Serbia
5. Mladen Tomić, The School of Higher Technical Professional Education, Niš, Serbia

Abstract:
In this paper the direct numerical simulation of the full Navier-Stokes equation in vorticity-stream function form for the case of an inclined fluid layer with temperature modulation on the upper plate is presented. The fluid flows between parallel plates which are inclined with some angle α in respect to the horizontal plane. The lower side of the viscous fluid layer is constant temperature surface. Since the temperature of the upper plate is higher than the lower plate, Rayleigh-Benard convection appears mostly in the upper zone. We investigate the stability of this convection for water as a working fluid. The results of direct numerical simulation are presented as fields of temperature, vorticty, stream function and velocity. This paper is concerned by the National Program of Energy Efficiency, project number: III42008, funded by the Government of Republic of Serbia.

Key words:
Direct numeric simulation,Navier-Stokes equations,Rayleigh-Bernard convection,Non-linear flow instability,Viscous fluid flow

Thematic field:
Energy and Thermal Engineering

Date of abstract submission:
03.03.2015.

Conference:
12th International conference on accomplishments in Electrical and Mechanical Engineering and Information Technology (DEMI 2015)

Final paper