| Biography | |
|---|---|
 Dr. Basil T. Wong Swinburne University of Technology Sarawak Campus, Malaysia |
|
| Title: Simulations of Nanoscale Heat Conduction and Radiative Heat Transfer via Versatile Monte Carlo Method | |
| Abstract: With tremendous advances in nanoscience, nanoscale engineering applications are bound to be more common, complex, and challenging. Further understanding of thermal transport down to nanometer scales will be crucial for the design and operation of new devices. The focus of this keynote is on thermal transport modeling at time and length scales ranging from micro- to nanoscale levels. At macro scales, the rate of heat conducted through an area is proportional to the thermal conductivity and the temperature gradient, following the Fourier law. The basic premise of the law is that the characteristic length of the object must be greater than the mean free path of the heat carriers. However, when the characteristic length of an object is smaller than the mean free path, which is commonly observed at nanoscales, heat conduction no longer obeys the Fourier law, mainly due to the impact of ballistic propagation by the heat carriers. At such scales, thermal conductivity and temperature gradient are reduced while discontinuity in the temperature distribution near the boundary exists. This requires solving of the Boltzmann Transport Equation (BTE) for phonon transport, which is an intergo-differential equation and analytical/numerical solutions are hard to obtain without elaborated assumptions. Fortunately, this can be remedied with the use of Monte Carlo simulation. In this talk, we will discuss modelling of nanoscale phonon transport within silicon structures using the Monte Carlo simulation and its applications in the thermal energy conversion. Since the Radiative Transfer Equation (RTE) is also derived from the Boltzmann Transport Equation, the developed Monte Carlo simulation for the phonon BTE can also be applied to solve the RTE with some minor modifications. This is a “double-edged sword” that one can develop while solving two transport phenomena using a similar approach. | |
| Biography: Associate Professor Ir. Dr. Basil T. Wong graduated from the University of Kentucky, USA in 2006 with a PhD in Mechanical Engineering specializing in thermodynamics and fluid mechanics/dynamics area. He is the Associate Dean (Research & Development) and an Associate Professor in the Faculty of Engineering, Computing, and Science at Swinburne University of Technology Sarawak Campus, Malaysia. His research focuses on heat transfers and energy conversions at the nanoscale. He has authored a monograph on thermal transport at nanoscale with application to nanomachining, which was used as a reference book for his ‘Nanoscale Thermal Science’ graduate classes back in the USA, and published 60+ articles in reputed journals and conferences. As a principal investigator, he has won multiple national grants, and reviewed journal articles for many reputed international journals related to heat transfer, energy, and radiative transfer. In addition, he has served as an external grant proposal reviewer on multiple occasions for the French National Research Agency (ANR) and Malaysian Ministry of Higher Education (MOHE). | |
