Studies of Scour Patterns Produced by Rotating Jets in a Flow Field.
Final rept. Oct 83-Sep 84,
NAVAL CIVIL ENGINEERING LAB PORT HUENEME CA
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A series of laboratory experiments were conducted to determine the scouring properties of submerged jets. Five cases were considered 1 a jet rotating in still water 2 a fixed jet in a fluid moving parallel to the jet coflow 3 a fixed jet in a fluid moving perpendicular to the jet crossflow 4 a fixed jet in a fluid moving against the jet counterflow and 5 a jet rotating in a moving fluid. In each case, dimensionless equations were developed to estimate the applied shear stress at the bed as a function of distance from the jet. The test results showed that a fixed coflow jet scoured the greatest distance, and rotating a jet in a mean flow scoured the greatest area. A summary of test results for each jetcurrent combination is provided in tabular form.
- Physical and Dynamic Oceanography
- Civil Engineering