Accession Number:

AD0258442

Title:

EXPERIMENTAL STUDY ON THE SOLITARY WAVE REFLECTION ALONG A STRAIGHT SLOPED WALL AT OBLIQUE ANGLE OF INCIDENCE

Descriptive Note:

Corporate Author:

CALIFORNIA UNIV BERKELEY WAVE RESEARCH LAB

Personal Author(s):

Report Date:

1961-03-01

Pagination or Media Count:

29.0

Abstract:

The reflection pattern of a solitary wave impinging on a sloping wall and some accompanying phenomena were studied in a laboratory ripple tank. The angle of incidence of the wave varied between zero and 90 degrees and the slope angle of the wall with the horizontal, between 20 and 150 degrees. It was found that curved ripples developed when incident waves hit a wall of slope less than 65 degrees approximately. As the angle incidence increased, an envelope of these ripples formed and became large enough beyond a certain angle of incidence, depending on slope, to look like a reflected wave but remained curved as were the ripples. For a relatively steep wall slope, larger than 65 degrees, reflection was regular, but the angle of incidence at which a straight reflected wave occurred depended on the slope of the wall. For a wall with negative slope Mach reflection took place for wave incident angles between 30 and 35 degrees. Mach reflection ceased and regular reflection occurred when the angle of incidence was 45 degrees. Three types of wave behavior relative to breaking were observed and found to be related to the angle of incidence. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE