Figure 13-3. Concrete sill in front of the wave board 



Single-phase, 1 10-V power outlets are spaced at 25-ft centers along the 

 exterior east wall of the channel. Additional 110-V outlets are available at 

 50-ft centers around the perimeter of the building. Three-phase, 440-V outlets 

 are placed at 50-ft centers on the exterior west wall of the wave channel. 

 Three-phase, 220-V power outlets are placed at 50-ft centers along the west 

 wall of the WRL environmental enclosure. 



260 



The environmental enclosure is a 375-ft- (1 14-m-) long, 100-ft- (30.5-m-) 

 wide, open-span steel building with an interior peak height of 35 ft (10.7 m) 

 and eave heights of 28 ft (8.5 m). Vehicular doors, 16 ft (4.9 m) wide and 

 16 ft (4.9 m) tall, are placed in pairs, 40 ft (12.1 m) between the center lines, 

 at the two ends of the building. The doors provide access for trucks and 

 cranes to facilitate placement of the beach sand, as shown in Figure 13-4. 



Fresh water for filling the wave channel is plumbed from a city fire main 

 to the beach end of the wave channel, opposite the wave generator. A 5-in. 

 (12.7-cm) PVC pipeline was routed along the exterior right wall of the chan- 

 nel to provide a filling port 10 ft (3 m) in front of the wave board at the wave 



Chapter 13 Wave Generation and Data Collection Systems 



