Accession Number : ADA255212


Title :   Wave Reflection at Tainter Gates. Hydraulic Model Investigation


Descriptive Note : Final rept.


Corporate Author : CALIFORNIA INST OF TECH PASADENA ANTENNA LAB


Personal Author(s) : Smith, Ernest R ; Herrington, C R


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a255212.pdf


Report Date : Aug 1992


Pagination or Media Count : 19


Abstract : The design of tainter gates includes wave pressure calculations using the superposition of the incident and perfectly reflected wave at the front face of the gate. However, waves are not expected to be perfectly reflected, since wave energy is dissipated on the curved front face of the gate and lost due to overtopping of the gate. This report documents a study in which wave reflection and water surface elevations above the gate were measured in a wave tank at a 1:30 model scale for four wave conditions at three water levels each. The resulting data are to be used to reevaluate the design calculations for wave forces on tainter gates. In the study, reflection coefficients ranged from 0.42 to 0.93 and were highest at the lowest water level tested. Maximum water surface elevation occurred at a water level slightly below the tainter gate crest. The combination of water elevation, wave period, and wave reflection contributed to the higher elevation.


Descriptors :   *WATER WAVES , *SPILLWAYS , *DAMS , SCALE MODELS , ENERGY , REFLECTION , PRESSURE , ELEVATION , HYDRAULIC MODELS


Subject Categories : Hydrology, Limnology and Potamology
      Civil Engineering


Distribution Statement : APPROVED FOR PUBLIC RELEASE