ACOUSTIC DOPPLER VELOCIMETER DEVELOPMENT

THIS RESEARCH PROJECT WILL STUDY THE FEASIBILITY OF DEVELOPING A 3-AXES ACOUSTIC DOPPLER VELOCIMETER SUITABLE FOR HIGH RESOLUTION TURBULENCE MEASUREMENTS AT A SINGLE POINT. THE PROPOSED APPROACH UTILIZES INTERRUPTED CONTINUOUS WAVE ACOUSTIC TRANSMISSION WITH THE WATERMASS SAMPLING VOLUME DEFINED BY THIS INTERSECTION OF MULTIPLE CROSSBEAMS. THE PRIMARY PHASE I OBJECTIVES ARE TO ANALYTICALLY DEFINE AND QUANTIFY THE ERROR SOURCES WITH THISREMOTE MEASUREMENT PROCESS, AND TO CONDUCT AN EXPERIMENT TO EVALUATE THE PRECISION OF MEASURING SMALL-SCALE HIGH FREQUENCY TURBULENT VELOCITIES.