Sharif University of Technology Scientia Iranica 1026-3098 32 2 2025 01 01 On oscillatory rotating convection of a couple-stress fluid with chemical reaction 23460 10.24200/sci.2023.60639.6912 EN Jangalla Nagaraju Department of Mathematics, University College of Science, Osmania University, Telangana, India, 500007 Kasba Ramesh Babu Department of Mathematics, University College of Engineering, Osmania University, Telangana, India, 500007 Gundlapally Shiva Kumar Reddy Department of Applied Sciences, National Institute of Technology Goa, Goa, India, 403401 Kiran Kumar Paidipati Area of Decision Sciences, Indian Institute of Management, Sirmaur, India Christophe Chesneau Department of Mathematics, LMNO, CNRS-Universite de Caen-Normandie, Campus II, Science 3, 14032 Caen Cedex, France Journal Article 2022 06 19 Newtonian fluids are unable to describe fluid flow behavior in many physical problems because the fluid is non-Newtonian in nature. So, in this article, analytical research is done into the impact of chemical reactions on the onset of rotating convection of a couple-stress fluid. Through the use of linear stability theory, the equations for both stationary and oscillatory Rayleigh numbers are produced. The couple-stress fluid parameter, the solutal Rayleigh number, the Damkohler number, the Lewis number, and the Prandtl number are all graphically represented as their effects at the onset of convection. The system is stabilized by the Lewis and Taylor numbers, while oscillatory and stationary convection are affected differently by the Damkohler number. When the Taylor number is less than $910.331$ and convection is oscillatory otherwise, the stationary instability threshold is reached. When the Damkohler number is less than $1.76455$, oscillatory instability is present; otherwise, stationary convection predominates. https://scientiairanica.sharif.edu/article_23460_9a28c54491fdd7834915c114d5b86868.pdf