SECOND ORDER THEORY OF MANOMETER WAVE MEASUREMENT

F. Biesel

Abstract


The paper refers to pressure gage wave measurements . First order transformation of the pressure spectrum into a surface level spectrum leads to hitherto unexplained discrepancies with prototype simultaneous pressure and level measurements . Use of second order gravity wave theory allows to draw the following conclusions » Second order effects appear to give a reasonable explanation of the observed discrepancies . A complete check would require specially made wave measurements and analyses . Second order corrections do not significantly affect mean values, such as significant height, if the manometer depth is not unduly large.

Keywords


wave measurement; manometer; second order theory

Full Text:

PDF


DOI: http://dx.doi.org/10.9753/icce.v18.%25p