A New Approach for Study the Electrohydrodynamic Oscillatory Flow Through a Porous Medium in a Heating Compliant Channel
| Autor: | Mohamed H. Haroun |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Fluid Flow and Transfer Processes
Materials science Mechanics of engineering. Applied mechanics Transportation porous medium 02 engineering and technology Mechanics TA349-359 01 natural sciences 010305 fluids & plasmas 020303 mechanical engineering & transports 0203 mechanical engineering electrohydrodynamic compliant channel 0103 physical sciences Heat transfer heat transfer Electrohydrodynamics Porous medium oscillatory flow Oscillatory flow Civil and Structural Engineering Communication channel |
| Zdroj: | International Journal of Applied Mechanics and Engineering, Vol 25, Iss 3, Pp 30-44 (2020) |
| ISSN: | 2353-9003 1734-4492 |
| Popis: | The governing equations of an electrohydrodynamic oscillatory flow were simplified, using appropriate nondimensional quantities and the conversion relationships between fixed and moving frame coordinates. The obtained system of equations is solved analytically by using the regular perturbation method with a small wave number. In this study, modified non-dimensional quantities were used that made fluid pressure in the resulting equations dependent on both axial and vertical coordinates. The current study is more realistic and general than the previous studies in which the fluid pressure is considered functional only in the axial coordinate. A new approach enabled the author to find an analytical form of fluid pressure while previous studies have not been able to find it but have found only the pressure gradient. Analytical expressions for the stream function, electrical potential function and temperature distribution are obtained. The results show that the electrical potential function decreases by the increase of the Prandtl number, secondary wave amplitude ratio and width of the channel. |
| Databáze: | OpenAIRE |
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