Oscillatory non-Newtonian viscoelastic fluid flow past a porous bed

• Autorzy: Eldabe N. T. M. , Sallam S. N. , Ghaly A. Y.
• Języki publikacji: EN

Abstrakty

EN

An analytical study has been performed to evaluate the flow of viscoelastic fluid through and past an infinite porous bed. A most general form of Darcy law has been taken into account when the free stream oscillates with or without a non-zero mean. In modeling the flow in the bed a separation of variable technique was utilized to represent the governing equations with appropriate boundary layer assumption. The effect of flow inertia was taken into consideration. Results obtained include velocity distributions of the fluid in the bed. The dependence of velocity profile on elasticity parameter of the fluid and permeability parameter of the medium with the variation of the time and position was also obtained and discussed graphically.

Słowa kluczowe

EN

viscoelascic fluid; bed flow; non-Newtonian

PL

płyn lepkosprężysty; płyn nieniutonowski

• Wydawca: Wydawnictwo Politechniki Łódzkiej
• Czasopismo: Mechanics and Mechanical Engineering
• Rocznik: 2004
• Tom: Vol. 7, nr 2
• Strony: 131--144
• Opis fizyczny: Bibliogr. 8 poz.

Twórcy

autor

Eldabe N. T. M.

autor

Sallam S. N.

autor

Ghaly A. Y.

• Mathematics Department, Faculty of Education, Ain Shams University, Heliopolis, Cairo, Egypt

Bibliografia

• [1] Oldroyd, JG: Proc. R. Soc. London A, (1950), 200, 923.
• [2] Colman, BD and Noll, W: Arch. Rat. Mech. Anal., (1960), 6, 355.
• [3] Walters, K: J. Mec., (1962), 1, 479.
• [4] Walters, K: Non-Newtonian Fluid Mech., (1979), 5, 113.
• [5] Walters, K: Second-order effect in elasticity, plasticity and fluid dynamics, (1964), Pergamon Press Ltd, Oxford, 507.
• [6] Eldahe, NT and Elmohandis, SMG: J. Phys. Soc. Jap., (1995), 64, 11, 4165.
• [7] Soundalgekar, NM and Puri, P: Fluid Mech., (1969), 35, 561.
• [8] Chawla, SS and Singh, SK: Acta Mechanica, (1979), 24, 205-218.