Author(s): Toshio Iwasaki
Linked Author(s): Toshio Iwasaki
Keywords: No Keywords
Abstract: Sets of Plastic strings were used as the model of grasses on river beds and their mot ion in the test flume was analyzed by videoimages. Karman vortex sheets were observed and drags were deduced using spacing and vortex shedding velocity. It was concluded these drags were to be evaluated on the energy loss of the flow beside the roughness of the river bed without grasses.
Year: 1987