AN EXPERIMENT ON CLAY SUSPENSION UNDER WATER WAVES

Prida Thimakorn

Abstract


The physical behaviour of water waves upon the suspension of fine cohesive clay was explored experimentally in a wave channel. Results obtained from the experiment show that equilibrium concentration is reached in the wave field some time about five hours after the initiation of waves. The ratio between the mean bottom concentration and the vertical average is constant and yields almost the same value within the range 1.17 and 1.34 at equilibrium and the bottom concentration at equilibrium is linearly proportioning to the maximum bottom velocity of waves. The dimensionless transient concentration possesses a relationship also with the bottom velocity and the bottom shear stress can be related to the maximum value of the ratio between the bottom concentration and the vertical average value found within a short time after the initiation of waves.

Keywords


clay suspension; sediment suspension; suspension experiment

Full Text: PDF

Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.