17 Underwater Noise Study Toward Propeller Rotation
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17.2.1 Experiment Planning
In this section, the Fig. 17.1 shows the planning of the experiment where it starts
with the experimental parameters, the equipment and device selection and the design
of the experiment.
There are 6 parameters used in this experiment to get the result. The first is the
number of propeller blades. There are 3 different numbers of blades for each propeller
which consist 2, 3, and 4 blades of the propeller and each number of propeller contains
3 different sizes where the size of propeller is the second parameter. For two and
three blades, it consists of 40 mm, 44 mm and 48 mm in diameter of the propeller
and for four blades, it consists 50 mm, 55 mm, and 60 mm in diameter where the
size of the propeller is the second variable of this study.
The third is the position of the measuring device. There are two different positions
of the measuring device which is horizontally and vertically. For the horizontal position, it consists of three distances, i.e., 100 mm, 200 mm, and 300 mm, respectively.
Fig. 17.1 Flowchart of the
experiment