The following information was submitted:
Transactions: WSEAS TRANSACTIONS ON HEAT AND MASS TRANSFER
Transactions ID Number: 89-440
Full Name: Narahari Marneni
Position: Senior Lecturer
Age: ON
Sex: Male
Address: Universiti Teknologi PETRONAS
Country: MALAYSIA
Tel: 006-0124109145
Tel prefix:
Fax: 006-05-365905
E-mail address: marneni@petronas.com.my
Other E-mails: mnarahari6@yahoo.co.in
Title of the Paper: Effects of thermal radiation and free convection currents on the unsteady Couette flow between two vertical parallel plates with constant heat flux at one boundary
Authors as they appear in the Paper: M. Narahari
Email addresses of all the authors: marneni@petronas.com.my
Number of paper pages: 10
Abstract: An 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 free convection currents occurring as a result of application of constant heat flux on the wall with a uniform vertical motion in its own plane while constant temperature on the stationary wall. The fluid considered here is a gray, absorbing-emitting but non-scattering medium, and the Rosseland approximation is used to describe the radiative heat flux in the analysis. The dimensionless governing partial differential equations are solved using Laplace transform technique. Numerical results for the velocity, the temperature, the skin-friction, the Nusselt number, the volume flow rate and the vertical heat flux are shown graphically. The effect of different parameters like thermal radiation parameter, Grashof number, Pran!
dtl number and time are discussed. It is observed that the momentum and thermal boundary layer thickness decreases owing to an increase in the value of the radiation parameter. An increase in the Grashof number is found to increase the velocity of air and water and to decrease the skin-friction at the moving plate.
Keywords: Vertical channel, Natural convection, Couette flow, Constant heat flux, Radiation.
EXTENSION of the file: .pdf
Special (Invited) Session: Natural Convection in Unsteady Couette Flow Between Two Vertical Parallel Plates in the Presence of Constant Heat Flux and Radiation
Organizer of the Session: 639-165
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