||Subcritical Flow at Open Channel Structures: Bridge Constrictions.
Skogerbo, Gaylord V. ;
Austi, Lloyd H. ;
Chan, Kuan-Tao ;
||Utah Water Research Lab., Logan.
||PRWG-71-2; DI-14-01-0001-1952; OWRR-B-018-UTAH; 03010,; B-018-UTAH(2)
( Open channel flow ;
Subcritical flow) ;
( Bridges(Structures) ;
Open channel flow) ;
Energy dissipation ;
Nonuniform flow ;
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Techniques previously employed for describing subcritical flow at open channel constrictions were found valid for analyzing nonuniform flow in open channels. Combining the nonuniform flow analysis with the submerged flow ratings for various bridge geometries provided an analytical means for determining the backwater due to the bridge constriction under 'abnormal stage-discharge' conditions. (WRISIC abstract)