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The Acoustic Doppler Velocimeter (ADV) is a tool that is designed to record instantaneous velocity components at a single-point with a relatively high frequency. The measurements are performed by measuring the velocity of particles in a remote sampling volume. It consists of a probe head made of 3 to 4 receivers. The measuring distance can be anywhere between 5 and 15 centimeters from the probe head. Figure 1 shows a diagram of a standard ADV. Also, any data taken from an ADV has to be properly analyzed. This is because the ADV is very sensitive to fluctuations and noise, which makes data points taken from any single point unreliable.

Figure 1. A rendering of a standard ADV model

ADV in Manifold Research

The ADV used in for the manifold research was a Nortek Vectrino. It was positioned outside of each port in order to measure the velocity in each jet. Through use and acclimation to this particular model, it was found that the probe head should be positioned approximately 17 cm (instead of the suggested 15 cm) from the sampling volume. Figure 2 shows the position and placement of an ADV in the inlet manifold model.

Figure 2. The ADV positioned outside of a port where the flow rate is being measured.

ADV software

The software required for the specific ADV model can be found through the Nortek Website. The following screenshots show how to set up and change the preferences for the ADV.

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