Thermo-solutal dual stratified convective magnetized fluid flow from an exponentially stretching Riga plate sensor surface with thermophoresis

Shamshuddin, M; Mabood, F; Rajput, GR; Beg, OA; Badruudin, IA

Abstract

A theoretical study is presented for the coupled thermo-solutal free convection twodimensional boundary layer flow of a of a magnetized fluid from an exponentially stretched
magnetic sensor (Riga plate) surface. Heat generation/absorption, nonlinear thermal radiation
and thermophoretic body force effects are included. Furthermore, thermal and solutal
stratification are also featured in the boundary layer model. The derived nonlinear partial
differential equation system with associated wall (sensor surface) and free stream boundary
conditions is transformed to system of ordinary differential equations (ODE) via applicable
similarity variables. A numerical solution is developed with the efficient Runge–Kutta–
Fehlberg (RKF) technique with a shooting numerical method, in MATLAB software using the
RKF-45 method. The graphical profiles were represented to examine the impacts of physically
parameterics on the important physical stream features. Streamline and isotherm plots are also
included for thermal buoyancy effect (Grashof number).Validation of solutions with earlier, simpler models is included. A relatively well agreement is achived between model prediction
and the benchmark value. Values for skin friction factor, Nusselt number and Sherwood
numbers are also tabulated to quantify momentum, heat and mass (species) transfer
characteristics at the sensor surface. The results indicate that the significant depletion in
temperature accompanies accumulation in magnetization and thermal stratification parameters.
Significant accumulation in mixed convection and Riga plate electrode width parameter
enhance the concatenation profiles. Nusselt number grows substantially as thermal
stratification and radiative parameter increases. Sherwood number grows substantially as
solutal stratification, thermophoresis and Schmidt parameter increases. The present study
generalizes previous models to include simultaneously exponential stretching, thermophoresis,
thermal and solutal (mass) stratification and heat source/sink effects

Citation

Shamshuddin, M., Mabood, F., Rajput, G., Beg, O., & Badruudin, I. (2022). Thermo-solutal dual stratified convective magnetized fluid flow from an exponentially stretching Riga plate sensor surface with thermophoresis. International Communications in Heat and Mass Transfer, 134, 105997. https://doi.org/10.1016/j.icheatmasstransfer.2022.105997

• Journal Article Type: Article
• Acceptance Date: Mar 25, 2022
• Publication Date: Mar 29, 2022
• Deposit Date: Mar 25, 2022
• Publicly Available Date: Mar 29, 2023
• Journal: International Communications in Heat and Mass Transfer
• Print ISSN: 0735-1933
• Publisher: Elsevier
• Volume: 134
• Pages: 105997
• DOI: https://doi.org/10.1016/j.icheatmasstransfer.2022.105997
• Publisher URL: https://doi.org/10.1016/j.icheatmasstransfer.2022.105997