ISSN:
1570-1468
Source:
Springer Online Journal Archives 1860-2000
Topics:
Energy, Environment Protection, Nuclear Power Engineering
Notes:
Conclusions 1. The developed design of a square shaft spillway with energy dissipators in it showed reliable operation in the entire range of possible discharges. 2. The design of energy dissipators in the form of a system of parallel beams arranged as levels over the height of the shaft provided their reliable operation. If necessary, a reduction of the hydrodynamic loads and heads acting on the structure can be achieved by increasing the number of levels. 3. Investigations showed that the “undershot gate design” of the transition is successful. 4. The use of a trench spillway with asymmetric delivery of water and formation of a vortex in the shaft are a virtue in the given design, providing a uniform distribution of the flow over the cross section of the shaft at the site of the first level of beams. 5. Intense entrainment of air from the air core forming before the upper level promotes a high degree and uniformity of saturation of the flow with air and eliminates the occurrence of cavitation effects, which involves a decrease of the requirements imposed on the quality of treating the surface of the concrete lining of the shaft and use of lower grades of lining concrete.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01426825
