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Title:	Fixed-cone valve prototype tests, New Melones Dam, California
Authors:	United States. Army. Corps of Engineers. Sacramento District. Fagerburg, Timothy L.
Keywords:	Flow control Pressure management Valves Water pressure Dams Hydraulic structures New Melones Dam California
Publisher:	Hydraulics Laboratory (U.S.) Engineer Research and Development Center (U.S.)
Series/Report no.:	Technical report (U.S. Army Engineer Waterways Experiment Station) ; HL-83-2.
Description:	Technical Report Abstract: Prototype measurements include static and dynamic values of pressures due to flow in the 66- and 78-in.-diam Howell-Bunger valves and hoods and strain on one vane of each valve. Transverse, vertical, and peripheral accelerations were measured at the downstream end of the valve cone. Vertical accelerations were also measured on the upstream end of the hood of each valve. Data were recorded on analog magnetic tape and played back on oscillograph charts to verify the recording. Results of the data reduction include information on discharge characteristics of the New Melones valves, evaluation of the pressure fluctuations for flows in the valves and hoods, evaluation of the vibration of the valve and hood structures, and evaluation of the strain measurements on the test vanes. The significant amplitudes of accelerations on the FC&I valve were due to the dynamic flow control shift which was not evident in vibrations of the LL valve. The pressure fluctuations revealed that buffeting was more evident in the fully developed turbulent flow of the LL valve than that resulting from the upstream bifurcations in the FC&I conduit.
Rights:	Approved for public release; distribution is unlimited.
URI:	http://hdl.handle.net/11681/13361
Appears in Collections:	Technical Report