Proceedings of the 9th Asian Joint Workshop on Thermophysics and Fluid Science, 27-30 November 2022, Utsunomiya, Japan

Effect of Multi-layered Piezo Ceramic Actuator on Transonic Flow.- Numerical Simulation for Prediction of Secondary Droplets by Water Droplet impingement on Thin Water Film using E-MPS Method.- Experimental Observation of Collision Process between Converging Shock Wave and Supersonic Jet.- Reduction of Aerodynamic Noise radiated from Multicopter.- Hydrodynamics of a Partially slipping Circular Cylinder in a uniform flow.- Effects of Salinity on Carbon Dioxide Microbubble Dissolution into Water.- Numerical Analysis of High-speed Flow around a Double-delta Wing.- Investigation of  cavitation evolution through a butterfly valve model at different valve opening degrees.- Numerical Investigation of Cavitating Flow around a Hydrofoil Considering Advection-Diffusion and Precipitation of Dissolved Gas in Liquid.- Numerical study on the effect of divergent angle of passive struts on the mixing of scramjet combustor.

Abhilash Suryan works at the Department of Mechanical Engineering, College of Engineering Trivandrum, India. He received his B. Tech. and M. Tech. in mechanical engineering from the College of Engineering Trivandrum and his Ph.D. from Andong National University in the Republic of Korea. He also holds the title Ing. Paed. IGIP from the International Society for Engineering Pedagogy. His current areas of interest include aerospace engineering, compressible fluid flow, renewable energy, and engineering pedagogy. He is a life member of the American Institute of Aeronautics and Astronautics (AIAA) and the Aeronautical Society of India (AeSI). He is a member of the editorial boards of the international journals Energy Sources, Part A: Recovery, Utilization, and Environmental Effects and the Journal of Thermal Science. He was selected as the researcher of the year by the APJ Abdul Kalam Technological University, Kerala, India, in 2019.

Minoru Yaga is a professor at theDepartment of Mechanical Systems Engineering, University of the Ryukyus, Okinawa, Japan. He received his B. Eng. from the Department of Mechanical Engineering, the Faculty of Engineering, University of the Ryukyus, Japan, in 1984. He received his M. Eng. and Ph.D. from the Interdisciplinary Graduate School of Engineering sciences, Kyushu University, Japan, in 1986 and 1989, respectively. He was a visiting associate at the California Institute of Technology in 1994-1995. His major research topics include development of high performance of submerged water jets, active control of oscillating shockwaves in a diffuser, behavior of propagating shock waves in an elliptical cell, and mixing enhancement of jets with a main supersonic flow.

Han Seo Ko received his B.S. degree from Yonsei University, the Republic of Korea, in 1990, and his M. S. and Ph.D. degrees in mechanical engineering from Texas A&M University, USA, in 1994 and 1998, respectively. In 2001, he joined the facultyof the School of