Yangjun Zhang received his PhD degree in Aero-Engineering from the Beijing University of Aeronautics and Astronautics (BUAA), Beijing, China, in 1995. Following a post-doctoral year of research, he worked as an associate professor at the Fluid Machinery Research Institute, Tsinghua University, Beijing, in 1997. In 1999, he joined the School of Vehicles and Mobility, Tsinghua University, where he became a professor of power machinery engineering in 2003. He is the director of the Turbo Hybrid & Electric Propulsion Laboratory, Tsinghua University, and is a Distinguished Professor of Changjiang Scholars of the Ministry of Education. He is also the head of the Turbo & Power Division, School of Vehicles and Mobility, Tsinghua University, where he acts as the executive deputy director of the State Key Laboratory of Automotive Safety and Energy. His teaching and research interests lie in the areas of thermodynamics, fluid mechanics, energy, power, and propulsion. Over the past two decades, his research activities have centered on the turbo thermofluids of automotive and aircraft engines; a major emphasis of his has been on turbo hybrid power and turbo electric propulsion systems. Professor Zhang has received many awards and honors, including the 2010 SAGE Best Paper Award, the 2012 ASME Turbo Expo Best Paper Award, and the 2019 SAE Wright Brothers Medal Award. He is also the editor-in-chief of the International Journal of Fluid Machinery and Systems (IJFMS).