Resistance to flow in irregular channels

Kazemipour, A. K. and Apelt, C. J. (Colin James) Resistance to flow in irregular channels. St. Lucia: University of Queensland, Dept. of Civil Engineering, 1980.

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Author Kazemipour, A. K.
Apelt, C. J. (Colin James)
Title Resistance to flow in irregular channels
Place of Publication St. Lucia
Publisher University of Queensland, Dept. of Civil Engineering
Publication year 1980
Sub-type Other
Series Research report (University of Queensland. Dept. of Civil Engineering) ; no.CE 7
Language eng
Total number of pages 23
Year available 1980
Subjects 290800 Civil Engineering
Formatted Abstract/Summary

Synopsis

 

Two sets of experiments with irregular channels were designed and carried out in order to clarify some aspects of resistance to flow in irregular channels and to separate losses due to boundary shear from those caused by the irregularities in the flow cross-section ("form" losses).  

 

It is demonstrated that a certain type of irregularity, in which the flow cross-section remains constant or nearly so, does not produce any "form" loss. This type of irregularity is the one in which any change in the width of the channel is associated with a change in the elevation of channel bed (change in depth of flow) such that the flow cross-section remains the same, or nearly so, through the irregularity. However, other types of irregularities associated with rapid changes in flow cross-section, in which the flow cross-section does not remain constant through the irregularity, produced "form" losses which accounted for up to 92% of the total loss in the channel.

Keyword Channels (Hydraulic engineering)
Frictional resistance (Hydrodynamics)
Q-Index Code AX
Q-Index Status Provisional Code
Institutional Status Unknown

 
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Created: Thu, 09 Aug 2012, 15:03:35 EST by Mr Lachlan Wong on behalf of The University of Queensland Library