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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Sediment management and morphodynamics : Improvement of usbr vi stilling basin models for pipe outlet
Improvement of usbr vi stilling basin models for pipe outlet
Author : H. L. Tiwari1, V. K. Gahlot2, A. Goel3, S.M.Yadav4 S. Tiwari
ABSTRACT
Experimental work pertaining to the design of new stilling basin model for pipe outlet using different appurtenances is
reported in this paper. On the basis of present investigations, newly stilling basin model design has been compared
with USBR VI stilling basin model. The main purpose of this research article is to design and develop new model for
pipe outlet stilling basin which is more efficient and economical as compared to other existing models non circular
pipe outlet by developing new physical models of stilling basin in the laboratory. The new models were tested in a
rectangular shaped pipe outlet for three Froude numbers (namely Fr = 1.85, 2.85 and 3.85) in comparison to USBR VI
stilling basin model recommended for the pipe outlets. The new models are developed by changing the geometry and
location of splitter blocks and impact walls, while keeping the other configuration of stilling basin geometry same as
suggested by USBR VI stilling basin. The scour pattern was measured for each test run and flow pattern was also
observed. The performances of the basins were compared by performance index (PI) using the same sand base
material and test run time for all models. After experimental investigations, it is found that, for a given Froude number
range, by changing the suitable size, shape and location of splitter blocks and impact wall along with end sill, the
performance of stilling basin is improved and also the length of the newly developed basin is reduced to 29% as
compared to USBR VI stilling basin for a given flow conditions.
File Size : 510,131 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Sediment management and morphodynamics
Date Published : 20/08/2015
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