PROF. DR. ROSLINDA MOHD NAZAR

She is currently a Professor at the Department of Mathematical Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia (UKM). She obtained a Bachelor of Science degree (Mathematics) from the University of Illinois at Urbana-Champaign, USA and a Master of Science degree (Mathematics of Nonlinear Models) from the Heriot-Watt University & University of Edinburgh, Scotland. Further, she obtained a Doctor of Philosophy degree (Applied Mathematics) from the Universiti Teknologi Malaysia in January 2004. In February 2005 she was promoted to the position of Senior Lecturer and later to the position of Associate Professor in August 2006. She was then promoted to the post of Professor in January 2012. She is one of the recipients for the 2021 Top Research Scientists Malaysia (TRSM) in the field of Applied Mathematics. She is the first and so far, the only recipient in Mathematics since TRSM was first launched in 2012. Her research interests include studies in the fields of Fluid Dynamics, Heat Transfer and Mathematical Modelling. She is active in research and publications and to date, she has published 4 research books by UKM Publisher and more than 600 research papers in the form of journal articles, proceedings, and book chapters.

MATHEMATICAL MODELLING OF THE MELTING HEAT TRANSFER IN THIN GENERALISED NEWTONIAN HYBRID NANOFLUID FILM FLOW

The melting heat transfer is an interesting phenomenon and worth to be investigated in the thin film flow due to its importance in various industrial processes. For instance, in the industrial coating, understanding the behaviour of melting films is crucial for optimising production processes and ensuring product quality. Meanwhile, hybrid nanofluid is a specially prepared fluid that comprises the homogeneous mixture of two or more nanoparticles with new physical and chemical properties. Therefore, the present study attempts to determine the influence of the melting heat transfer in the thin generalised Newtonian hybrid nanofluid film flow. In addition, the thermocapillarity effect is also incorporated into this flow system. The Carreau and Cross fluids are the generalised Newtonian models considered in this study. These fluid models can describe the fluid flow in the power law region, very low and very high shear rate zones. The flow setup is expressed in partial differential equations and aligned with the boundary layer concept. The respective partial differential equations are transformed into a system of ordinary differential equations via an appropriate similarity transformation to ease the computation process in the MATLAB boundary value problem solver bvp4c function. The present study endeavours to form a novel thin film flow by involving the melting heat transfer effect and observes how it affects the film growing process with other external effects such as thermocapillarity and accelerating flat surface.