Joseph Tsu Chieh Liu (born 1934) is an engineer.
Liu completed a bachelor's degree, followed by a Master of Science in Engineering, at the University of Michigan in 1958. He worked for a Convair for a year and was based in Fort Worth, Texas, before pursuing a doctorate at the California Institute of Technology in 1964. Liu subsequently worked for the Gas Dynamics Laboratory at Princeton University's Department of Aerospace and Mechanical Sciences.[1] He joined the Brown University faculty in 1966,[2] and upon his retirement, was granted emeritus status.[3] Liu was elected a fellow of the American Physical Society in 1984, "[f]or original and significant theoretical contributions in integrating and concepts of large scale turbulent structure into quantitative calculations of developing shear flows and their noise production."[4]