4) EXPERIMENTS
4.1) SETUP
A flume (approximately 20m long, 1m wide and 0.6 m high) with a regular wave generator was used for this set of experiments.
Regular waves of different wavelengths and periods were introduced to a slope and then to a horizontal plane connected to the slope and the wave height and wave period before the ramp was measured (see fig1). The data was collected through a probe which was placed at the point mentioned above. The probe was connected to the manual wave processor which was connected to a computer. The computer analyzed the data from the manual wave processor and the wave height, the wave period and the data recording time to the nearest four decimal place were recorded. 
In this set of experiments, the waves were also squeezed from the sides while they were being squeezed from the bottom (see fig2).
4.2) HYPOTHESIS
The reason for squeezing the waves from the bottom by means of introducing a slope was to make the water waves break in order to create a mass flow. As the slope was being introduced, the water became shallower. As the water became shallower, the interaction with the ground began which caused the waves break. This then resulted in a mass flow.
The reason to squeeze the water from the sides was to concentrate energy. When the water is squeezed from the sides, the wave height of the wave increases which causes an increase in the wave's energy (see Appendix 1 for detailed information on changing the width of the channel). Another reason for changing the width is to let more water in the channel. By making the entrance part of the channel wider than the actual width of the channel, more water comes in compared to the set-up which does not have a wide entrance.
In this set of experiments, ascending the horizontal plane above the still water level was another trial. The reason for doing this was the same with the trials for which the horizontal plane was ascended but was under the still water level.
As the plane was ascended, the slope of the inclined plane that was introduced before the horizontal plane was changing because of the problems we had with the set-up (i.e. they were connected to each other). However, the change was relatively small because the change in the horizontal plane height was maximum 0.07 m, while the length of the inclined plane was 1.50 m. The difference this would make is in the accuracy range of our experiments.
4.3) PARAMETERS :
The parameters in our experiments were as follows:
• H = wave height ( m )
• T = wave period ( s )
• h = the height between the horizontal plate and the surface of the water ( m )
• b = width of the channel ( m )
• Tan a = slope of the pressurizing plate from the bottom
• Tan q = slope of the pressurizing plates from the sides
• V = volume of the water that passes ( m 3 )
• t1 = trial 1 ( s )
• t2 = trial 2 ( s )
• t3 = trial 3 ( s )
• t4 = trial 4 ( s )
• t5 = trial 5 ( s )
• ta = the average time it takes for a small piece of polystyrene to move two meters on the horizontal plate ( s )
• tb = time for taking the data ( s )
• P = the height of the water collected in the box ( m )
• Q1 = discharge ( m3/ s )
• Q = non-dimensionalized Q1by dividing it by ‘b' ( the width ) ( m2/ s )
4.4) THE PROCEDURES :
Two different procedures were used to measure the discharge of water from the horizontal plane. For the slope tan a (tan a = 0.260), four different h values were used (h = - 0.04 m, h = - 0.02 m, h = 0.01 m, h = 0.03 m). For each tan a slope, two different tan q values were used (tan q = 0.05, tan q = 0.06). For each tan q, three different wave heights, for every wave height two different wave periods were used. The still water level for each set-up was 0.35 m. All these experiments are made in order to make the best graphs which are under the title “ results” .
Procedure 1:
For the experiments for which the horizontal plane was below water level (i.e. h = - 0.04 m, h = - 0.02 m), this procedure was used. Because discharge, Q1 = b*h*v, and b and h values are known for each of the settings, by measuring v (the velocity of the flowing water over the horizontal plane) the discharge could be evaluated. Therefore to measure v a piece of polystyrene was used.
The piece of polystyrene was dropped at the connection of the inclined and the horizontal plane. At the same time a stop-watch was started. When the polystyrene reached the end of the horizontal plane, the stop-watch was stopped. For precision this was repeated a several times and the times were recorded as t1, t2, t3, t4, t5. Then the arithmetic mean of these values were taken and recorded as ta . The length of the horizontal plane was also known, therefore by dividing the length of the horizontal plane by the average time, the velocity of flowing water was calculated.
For every set-up the wave heights and the wave periods were also measured and recorded from the probs.
Procedure 2:
For the experiments for which the horizontal plane was above water level (i.e. h = 0.01 m, h = 0.03 m) this procedure was used.
A box of length = 0.402 m, width = 0.921 m and height = 0.36 m was placed at the end of the horizontal plane. The entrance of the horizontal plane was opened at the same time as the data was started to be taken. When the data recording time ended, the entrance part of the horizontal plane was blocked with the help of a piece of wood, so that no more water could flow in the box. Then, the water level inside the box was measured. From this level, the volume of the water collected inside the box can be calculated;
V = width * length * P
The discharge can also be calculated by using the data recording time and the volume from the following equation:
Q1 = V / t b
For every set-up using this procedure the wave height and the wave period was also measured from the probes (placed at the same places as in the procedure 1) and recorded.
4.5) RESULTS
For the results, please visit the appendix .
4.6) CONCLUSION
As a result, the ellipsoidal motion can be transformed into translatory motion by squeezing the water from the bottom and the sides. By this method, the ellipsoidal motion that the waves display is disturbed and the waves cannot complete their orbits. This makes the waves break and transform into longitudinal motion. Therefore, a circulation which would replace the polluted water inside the bay with cleaner water would be created.
If a hydraulically or mechanically movable channel is built, the best configuration of the setup depending on the weather and sea forecasts can be prepared and the maximum discharge can be obtained.
As it has been calculated, if a channel with a width of 450m and a height of h is built, the water inside the Bay of Marmaris will be replaced approximately 250 times a year. This means that the water inside the bay is replaced once every one and a half days.
Additionally, electricity may be generated by means of building electric turbines on the channel.
This method can be applied not only to Marmaris, but to all other closed bays and clean them with free and clean technology.