234 



Fourth, and last, kinetic energy from the ocean wave is extracted by a 

 simple turbine which can hove a one shaft drive to the load device such as an 

 electrical generator. 



Now let me further explain the concept by a series of slides which build 

 up to the total system starting with the central core. 



Consider a large cylinder, open at both ends, with dimensions of 30 feet 

 diameter and 60 feet tall (Fig. 2). Such a cylinder encloses 1350 tons of sea- 

 water. By creating a swirling vortex inside the core, one can have a source 

 of energy (Fig. 3). The vortex action will cause a turbine wheel to rotate. 



Each of you have experienced a similar phenomenon by squirting water into 

 the edge of a bucket of water, or by mechanically stirring a bucket of paint 

 (Fig. 4). 



Mow the way to cause nature to generate this fluid flywheel is to place 

 • large dome over the central core (Fig. 5). For reasons I will explain in a 

 moment, the dome structure needs to be in the order of 100 meters In diameter -- 

 comparable in size to the roof covering a football field. As the wave travels 

 over the dome, the velocity of the wave slows as the water depth decreases. 

 This causes the wave to bend -- or refract -- so that it is focused or spirals 

 Into the center of the dome. Bending or refraction of the waves was known to 

 the Polynesians who knew that there was no lee side or protected side for a 

 volcanic atoll -- the ocean wave broke on the shore around all the periphery of 

 the atoll. Our South Pacific landing forces in WWII had to learn the phenomenon 

 the hard way. 



Fig. 3 The DAM -Atoll 

 Fluid Flywheel 



Fig. 



4 The DAM-Atoll 

 Core Vortex 



