Effects of Dufour, Thermal Radiation, Absorption of Radiation and Chemical Reaction on MHD Oscillatory Flow in an Asymmetric Wavy Channel

• Author(s): V. C. C. Raju ; Y. Sudharsan Reddy ; V. Manjulatha
• Paper ID: 1702572
• Page: 32-51
• Published Date: 16-01-2021
• Published In: Iconic Research And Engineering Journals
• Publisher: IRE Journals
• e-ISSN: 2456-8880
• Volume/Issue: Volume 4 Issue 7 January-2021

Abstract

The objective of this paper is to investigate the combined effects of Diffuson – Thermo ( Dufour), thermal radiation, absorption of radiation and chemical reaction on MHD oscillatory flow of an optically conducting thin fluid in an asymmetric wavy channel filled with porous medium. Analytical expressions for the velocity, temperature and concentration profiles are obtained. Solutions are analyzed graphically for different values of arising parameters such as Schmidt number (Sc), Peclet number (Pe), Reynolds number (Re), absorption of radiation parameter (Ra), Dufour parameter (DT ), thermal Grashof number (Gr), solutal Grashof number (Gm), porous medium shape factor parameter (S), radiation parameter (N), magnetic parameter (M), chemical reaction parameter (K1), the geometric parameter’s like amplitude ratio’s (a and b), mean half width of the channel (d) and Phase angle (?t). The expressions for skin friction and the rate of heat and mass transfer coefficients at the channel walls are derived and discussed numerically for different physical parameters and exhibited in tabular form. The velocity and temperature increase with increasing radiation parameter and Dufour number whereas the concentration decreases with increasing chemical reaction parameter and Schmidt number. This study is carried out to obtain a better understanding of the flow instabilities with heat and mass transfer in wavy passages so that design guidelines may be developed.

Keywords

Oscillatory flow, Asymmetric Wavy channel, Dufour effect, Radiation, Absorption of radiation.

Citations

IRE Journals:
V. C. C. Raju , Y. Sudharsan Reddy , V. Manjulatha "Effects of Dufour, Thermal Radiation, Absorption of Radiation and Chemical Reaction on MHD Oscillatory Flow in an Asymmetric Wavy Channel" Iconic Research And Engineering Journals Volume 4 Issue 7 2021 Page 32-51

IEEE:
V. C. C. Raju , Y. Sudharsan Reddy , V. Manjulatha "Effects of Dufour, Thermal Radiation, Absorption of Radiation and Chemical Reaction on MHD Oscillatory Flow in an Asymmetric Wavy Channel" Iconic Research And Engineering Journals, 4(7)