Author(s): G. Rouve; H. D. Olbrisch; V. Stottmeister
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Keywords: No Keywords
Abstract: The discharge in a profile of a natural or a man-made channel is reduced if the cross-section is covered by ice. The roughness of the cross-section may vary and differ from the roughness of the ice cover, which can also change across the section. Relations between nondimensional roughness and the reductions of discharges are found with known formulae for the composite roughness considering the MANNING formula. Simple relationships between the cross-section characteristics and the reduction of discharge are the result evaluated in a FORTRAN IV program running on a CD 6400, subroutines have been checked on a WANG 720 C.
Year: 1974