Abstract
The effects of free convection and mass transfer on the oscillatory flow of an incompressible, dissipative, viscous fluid past an infinite vertical, porous plate with constant suction, is studied. The solution of the problem is obtained with assumption that there exists a “mean steady flow” and on it superimposed the unsteady oscillatory flow. The mean steady flow is studied in this paper and the effects of Grashof number (Gr), modified Grashof number(Gc), Eckert number(E) and Schmidt number(Sc) are discussed for the case of air (P = 0·71). The study of the expression of the unsteady parts of the velocity, temperature and related quantities will be given in a subsequent paper.
Similar content being viewed by others
Abbreviations
- C :
-
non-dimensional species concentration
- C p :
-
specific heat of the fluid at constant pressure
- D :
-
chemical molecular diffusivity
- E :
-
Eckert number
- g :
-
gravitational acceleration
- G r :
-
Grashof number
- G c :
-
modified Grashof number
- k :
-
thermal conductivity
- P :
-
Prandtl number
- S c :
-
Schmidt number
- t * :
-
time
- θ :
-
temperature
- u * :
-
velocity component inx'-direction
- U * :
-
free-stream velocity
- U 0 :
-
mean free-stream velocity
- ν * :
-
velocity component iny′-direction
- ν0 :
-
suction velocity
- x * :
-
co-ordinate axis along the plate
- y * :
-
co-ordinate axis normal to the plate
- β * :
-
volumetric coefficient of thermal expansion
- β *1 :
-
volumetric coefficient of expansion with concentration
- μ :
-
viscosity of the fluid
- v :
-
kinematic viscosity of the fluid
- θ :
-
density of the fluid
References
Gebhart B., Pera L.: Int. J. Heat Mass Trans.14 (1971) 2025.
Lighthill M. J.: Proc. R. Soc. A224 (1954) 1.
Soundalgekar V. M.: Proc. Indian Acad. Sci.84 A (1976) 194.
Sparrow E. M., Minkowycz J. J., Eckert E. R. G.: J. Heat Trans. ASME86 C (1964) 508.
Stuart J. T.: Proc. R. Soc. A231 (1955) 116.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Georgantopoulos, G.A., Nanousis, N.D., Kafousias, N.G. et al. Free convection and mass transfer effects on the oscillatory flow of a dissipative fluid past an infinite vertical porous plate (I). Czech J Phys 31, 865–875 (1981). https://doi.org/10.1007/BF01603781
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF01603781