The document discusses the importance of thermal-fluid dynamics in addressing energy shortage, environmental issues, and sustainable development. It emphasizes the need for innovative technologies to improve energy utilization efficiency and reduce carbon footprint. The document also highlights the recent research presented at the 3rd International Symposium on Thermal-Fluid Dynamics (ISTFD2022), covering topics such as multiphase flow, heat transfer, and energy conversion. The symposium aims to foster interdisciplinary research and technological advancements in the field.