THERMAL RADIATION EFFECT ON A BOUYANCY-INDUCED COUETTE FLOW DUE TO NEWTONIAN HEATING IN AN UPSTANDING CHANNEL. FJST [Internet]. 25 août 2025 [cité 18 mai 2026];9(2):9-18. Disponible sur: https://lafiascijournals.org.ng/index.php/fjst/article/view/498