Open AccessDetermination of velocity of explosion waves of small amplitude in sea water.―Variation of velocity with temperature
Author(s) -
Adrienne Wood,
H. E. Browne,
Corey J. Cochrane
Publication year - 1923
Publication title -
proceedings of the royal society of london. series a, containing papers of a mathematical and physical character
Language(s) - English
Resource type - Journals
eISSN - 2053-9150
pISSN - 0950-1207
DOI - 10.1098/rspa.1923.0057
Subject(s) - impulse (physics) , amplitude , wave velocity , mechanics , physics , materials science , classical mechanics , optics , composite material , shear (geology)
The earliest recorded observations of the velocity of sound in a large body of water are those of Colladon and Sturm in 1827, a value 4700ft./sec. being obtained for the velocity in fresh water at 8.1°C. Later experiments in 1888 by Martini gave the values 4575 ft./sec. at 4°C. and 4770 ft./sec. at 25°C for fresh water. In 1889 Threlfall and Adair determined the velocity of explosion waves in the sea. With 9 oz. charges of guncotton the velocity was found to be 5660 ft./sec., whilst with 4 Ib. charges this was increased to 6580 ft./sec. In all cases, they found the velocity of explosion waves was higher than the calculated velocity of ordinary acoustic waves, the velocity of the explosion impulse increasing with the size of the charge.