Generating circular steady waves for sport activities

Abstract

Provided is a system for generating circular steady water waves for sport activities. The system comprises a ring-shaped water pool having inner and exterior rings and a floor inclined from the outer ring to the center of the water pool. The system comprises channels located under the floor of the water pool for recirculating water. At least one water propeller turbine is installed inside the channels and configured to recirculate water from the water pool through the channels and back to the water pool. The system comprises guiding plates installed on the floor. Waves of different shapes including breaking waves are generated by varying velocities of different water current and controlling guiding plates.

What is claimed is: 
     
         1 . A system for generating circular steady water waves for sport activities, the system comprising:
 a water pool, the water pool having:
 a shape of a closed round geometrical figure; 
 an inner ring; 
 an exterior ring; and 
 a floor inclined from the exterior ring to the center of the water pool; 
   one or more channels located under the floor of the water pool for recirculating water; and   at least one water propeller turbine installed inside the channels for generating one or more water currents, wherein the at least one water propeller turbine is configured to recirculate water from the water pool through the channels and back to the water pool.   
     
     
         2 . The system of  claim 1 , wherein the water current is propelled from the inner ring to the exterior ring. 
     
     
         3 . The system of  claim 1 , wherein at least one water propeller turbine is installed in the center of the water pool. 
     
     
         4 . The system of  claim 1 , further comprising a vane pump installed in the center of the water pool. 
     
     
         5 . The system of  claim 1 , wherein the water current is propelled around the water pool. 
     
     
         6 . The system of  claim 1 , wherein the at least one water propeller turbine is installed in the exterior ring of the water pool. 
     
     
         7 . The system of  claim 6 , wherein the at least one water propeller turbine is configured to generate water currents having different velocities resulting in waves of different shapes, the waves being stationary or moving circularly around the water pool. 
     
     
         8 . The system of  claim 6 , wherein the at least one water propeller turbine comprises:
 a blade bearing; and   a plurality of blades connected by one edge to the blade bearing, the blades configured to fold and unfold.   
     
     
         9 . The system of  claim 1 , wherein the water pool is shaped as a polygon. 
     
     
         10 . The system of  claim 1 , wherein the floor of the water pool has a structure varying in radial direction. 
     
     
         11 . The system of  claim 1 , further comprising guiding plates installed on the floor of the water pool, the guiding plates being controlled to generate different wave forms and breaking waves, a braking section of the braking waves moving circularly around the water pool. 
     
     
         12 . A method of generating circular steady water waves, the method
 disposing a water pool having:
 a water pool, the water pool having: 
 a shape of a closed round geometrical figure; 
 an inner ring; 
 an exterior ring; and 
 a floor inclined from the exterior ring to the center of the water pool; 
   disposing one or more channels located under the floor of the water pool for recirculating water; and   disposing at least one water propeller turbine installed inside the channels for generating one or more water currents, wherein the at least one water propeller turbine is configured to recirculate water from the water pool through the channels and back to the water pool.   
     
     
         13 . The method of  claim 12 , wherein the at least one water propeller turbine is configured to generate water streams flowing from an exterior ring to the center of the water pool. 
     
     
         14 . The method of  claim 12 , wherein the at least one water propeller turbine is installed in the center of the water pool. 
     
     
         15 . The method of  claim 12 , further comprising disposing a vane pump in the center of the water pool. 
     
     
         16 . The method of  claim 12 , wherein the at least one water propeller turbine is configured to generate water streams flowing around the water pool. 
     
     
         17 . The method of  claim 12 , wherein the at least one water propelled turbine is disposed in the exterior ring of the water pool. 
     
     
         18 . The method of  claim 17 , wherein the at least one water propeller turbine is configured to generate one or more water currents having different velocities to generate waves of different shapes, the waves being stationary or circulating around the water pool. 
     
     
         19 . The method of  claim 15 , wherein the water pool has:
 a shape of polygon;   a different structure of floor in radial direction; and   guiding plates installed on the floor of the water pool to generate different wave forms and breaking waves.   
     
     
         20 . A system for generating artificial water waves for surfing, the system comprising:
 a water pool, the water pool having:
 a shape of a closed round geometrical figure; 
 an inner ring; 
 an outer ring; 
 a floor inclined from the outer ring to the center of the water pool; 
 a shape of a polygon; 
   one or more channels located under the floor of the water pool for recirculating water; and   at least one water propeller turbine installed in the center of the water pool and configured to recirculate water from the water pool through the channels and back to the water pool, the at least one water propeller turbine comprising a blade bearing and blades connected by one edge to the blade bearing, the blades being configured to fold and unfold.