Description of the measurements realized

The measurements were obtained in a laboratory flume containing a suspension of natural mud from the Mersey Estuary in saline water of approx. 20ppt. The flume was approximately 600mm deep with a sloping bed and the probe was positioned in the water surface. The Doppler angle to the horizontal was 61 degrees.

The average mud concentration that was analyzed was between approx. 20g/l. and 30g./l.

The figure below gives an example of the results obtain with the DOP1000 ultrasonic Doppler velocimeter.

These measurements were realized by:

Martin Crapper
Lecturer
Department of Civil and Environmental Engineering
The University of Edinburgh
Crew Building
The King's Buildings
Edinburgh EH9 3JN

Tel +44 131 650 5727 (direct line)
Fax +44 131 667 9238
e-mail Martin.Crapper@ed.ac.uk
http://www.civ.ed.ac.uk/people/academic/martin.htm