Unsteady flow and heat transfer due to a suddenly stopped continuous moving surface

• Autorzy: Devi S. P. A. , Asir A. A. , Thiyagarajan M.
• Języki publikacji: EN

Abstrakty

EN

An approximate solution for the problem of unsteady flow and heat transfer caused by a suddenly stopped continuous moving surface and its gradual cooling has been obtained by solving the non-linear governing equations with the implicit finite difference scheme. Stability and convergence of the scheme are first verified. Then, the influence of the plate velocity, Prandtl number, time of stopping of the plate t_1 and the cooling constant on the flow pattern, temperature, wall shear stress and heat flux is analyzed. It is found that velocity, temperature, wall shear stress and heat flux decrease in time. When the plate moves faster, fluid velocity, wall shear stress and heat transfer intensity are augmented whereas temperature goes down. The Prandtl number increases and the cooling constant reduces temperature and heat flux.

Słowa kluczowe

EN

unsteady flow; heat transfer; finite element method; experimental mechanics

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Computer Assisted Mechanics and Engineering Sciences
• Rocznik: 2001
• Tom: Vol. 8, No. 4
• Strony: 527--534
• Opis fizyczny: Bibliogr. 4 poz., rys., wykr.

Twórcy

autor

Devi S. P. A.

• Department of Mathematics, Bharathiar University, Coimbatore - 641 046, India

autor

Asir A. A.

• Department of Mathematics, St.John's College, Palayamkottai, Tirunelveli - 627 002, India

autor

Thiyagarajan M.

• Department of Mathematics, Erode Sengunthar Thudupathi, Erode - 638 057, India

Bibliografia

• [1] K. Buhler, J. Zierep. Instationare Plattenstromung mit Absaugung und Ausblasen. ZAMM, 70: 589, 1990.
• [2] B. Carnahan, H.A. Luther, J.O. Wilkes. Applied Numerical Methods. John Wiley and Sons. New York, 1969.
• [3] D.B. Ingham, I. Pop. Flow and heat transfer due to a suddenly stopped and cooled plate. Acta Mech., 112: 107, 1995.
• [4] K. Vajravelu, A. Hadjinicolaou. Int. J. Engng. Sci., 35: 1237, 1977.