Accession Number : AD0761090

Title :   Reflection Characteristics of Screen Wave Absorbers: Hydraulic Model Investigation.

Descriptive Note : Final rept.,

Corporate Author : ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MISS

Personal Author(s) : Keulegan,Garbis H.

Report Date : APR 1973

Pagination or Media Count : 66

Abstract : Two expressions are derived for the reflected waves from a wave absorber consisting of small mesh screens with the pieces in parallel arrangement and equal distance apart. In deriving one of the expressions, it is assumed that one part of the observed reflection is due to a reflection from the frontal part of the observed reflection is due to a reflection from the frontal part of the absorber and the remaining part, to a reflection from the rigid wall at the back. The agreement between observation and evaluation is fair. The other expression is derived empirically. The formula obtained related the observed reflection from an absorber to the transmission that would have occurred had the wave absorber been used as a filter. The law derived is quadratic and resembles the form given by Goda and Ippen. (Author)

Descriptors :   (*WATER WAVES, ATTENUATION), (*HYDRAULIC MODELS, WATER WAVES), WAVE PROPAGATION, REFLECTION, OCEAN WAVES

Subject Categories : Civil Engineering
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE