This Lab houses one large-scale water tunnel, which has a rectangular working section of 0.3 m X 0.6 m X 2.4 m and a maximum speed of nearly 4 m/sec. The tunnel is equipped with numerous pieces of state-of-art equipment, including a two-component laser Doppler velocimeter (LDA), 2-D particle image velocimeter, 3-D laser-induced fluorescence flow visualization, hot-film anemometers for flow measurements. The tunnel has been used to support a number of research projects, including RGC-supported group research project, and consultancy projects in the areas of turbulent flows, flow-induced vibration and noise control. It is also used to support undergraduate and postgraduate teaching.