Abstract:
Joule heating over rotating concentric cylinders with suction parameter is very important in a wide number of applications. Applications of concentric cylinders were produced for the smooth usage but the contrary is derived once they are used on uneven road. The impact of joule heating along with suction parameter has been the major problems in rotating concentric cylinders. Therefore this study examined the impact of joule heating along with suction parameterin rotating concentric cylinderingwith Hartmann number (Ha), Pressure gradients (G) and suction parameters (V_0) .The governing equations of Joule heating on rotating concentric cylinders which include, continuity, momentum and energy were modelled and adopted with Ha, Gand V_0. The G and〖 V〗_0were at interval of 0.50 from 0.00 to 2.00 andHa were considered at interval of 5.00 from 0.00 to 20.00. The semi-implicit finite difference scheme with MAPLE 18 software were used for the interpretation.The higher the G the more the fluid flow within the rotating concentric cylinder, suggesting a high fluid viscosity. The temperature of Ha on V_0reduces as the G and V_0 increases suggesting thatsuction with direct joule heating can damage rotating concentric cylinder especially with wrong viscosity. In conclusion, as the G increases, the temperature also increases signifying the usage of rotating concentric cylinder on uneven roads and overloading of moving vehicles and machines; while as Ha increases the temperature decreases implying usage and applications of bearings on smooth road.
Description:
The problem relating to rotating concentric cylinders with fluid has attracted the attention of many researchers for its applications in industry such as manufacturing, crystal growth processes, rotating viscometer, rotating machines, productions and usage of rotating automobile components. The analysis of the hydro-magnetic Nanofluid boundary layer flow over a rotating disk in a porous medium with a constant velocity in the presence of hall current and thermal radiation, velocity profiles and temperature profiles of the boundary layer are plotted and investigated in details.Abdel-Wahedet al., (2016).
