Abstract: This book brings together the collection of cutting-edge research articles on fluid and thermal engineering from the 2nd International Conference on Future Learning Aspects for Mechanical Engineering (FLAME), which was organized by Amity University, Noida, Uttar Pradesh, India, from August 5 to 7, 2020.Owing to pandemic COVID-19, this conference was held virtually.The primary mission of this conference was to lay a platform that brings together academicians, scientists, and researchers across the globe to share their scientific ideas and vision in the areas of thermal, design, industrial, production, and interdisciplinary areas of mechanical engineering.FLAME 2020 played a key role to set up a bridge between academia and industry.The conference hosted almost 600 participants to exchange scientific ideas.During 3 days of the conference, researchers from academics and industries presented the most recent cutting-edge discoveries, went through various scientific brainstorming sessions, and exchanged ideas on practical socioeconomic problems.This conference also provided a scope to establish a network for joint collaboration between academia and industry.Major emphasis was focused on the recent developments and innovations in various fields of mechanical engineering through plenary and keynote lectures.In particular, this volume discusses selected topics of fluid and thermal engineering in eighty chapters such as heat transfer enhancement, thermodynamics, heat transfer in nuclear engineering, microscale and nanoscale, two-phase flow, phase change process, advancement in numerical methods, computational fluid dynamics, refrigeration and air conditioning, advancement in aerospace engineering, flow through porous media, condensation, evaporation, hybrid vehicles, passive cooling method, thermal management of various devices, theoretical fluid mechanics, flow measurement techniques, and fluid machinery and fluid power with special emphasises on renewable energy.The contents of this book will be useful for researchers as well as industry professionals.