Final answer:
In Acoustic Doppler velocimetry, ADV stands for Acoustic Doppler Velocimetry, a technique for measuring particle velocity in a fluid. Therefore, the correct answer is option 4) Acoustic Doppler Velocimetry
Step-by-step explanation:
In Acoustic Doppler velocimetry, ADV stands for Acoustic Doppler Velocimetry. This technique is used to measure the velocity of particles in a fluid by using the Doppler effect of sound waves reflected off the moving particles.
Some key terms related to the measurements that can be made using ADV include instantaneous velocity (7), which represents the velocity at a specific moment, instantaneous speed (vav), the absolute value of instantaneous velocity, and instantaneous acceleration (ā), which is the rate of change of instantaneous velocity.
These concepts are crucial in studying the movement and behavior of fluids, relevant in various fields such as engineering and environmental sciences.
In Acoustic Doppler velocimetry (ADV), ADV stands for Acoustic Doppler Velocimetry. ADV is a technique used to measure fluid velocity by measuring the frequency shift of sound waves reflected off moving particles in the fluid. Using this technique, researchers can determine the speed and direction of fluid flow in applications such as river flow measurement and sediment transport analysis. Therefore, the correct answer is option 4) Acoustic Doppler Velocimetry