Accession Number : AD0689457

Title :   SOME ASPECTS OF FLOW-INDUCED VIBRATIONS OF HYDRAULIC CONTROL GATES,

Corporate Author : IOWA UNIV IOWA CITY IOWA INST OF HYDRAULIC RESEARCH

Personal Author(s) : Locher,Frederick A.

Report Date : FEB 1969

Pagination or Media Count : 197

Abstract : High-head gates in dams and outlet works, was the principal concern of the investigation. The geometrical configuration chosen for the study is a highly idealized representation of a flat-bottomed, high-head gate just protruding into the flow--in effect, a normal wall or step. The primary objectives of the research were to investigate how basic flow instabilities associated with a free shear layer may lead to flow-induced vibrations of high-head gates, and to relate the mechanisms elucidated by the study of the idealized gate geometry to a general classification of flow-induced excitation. (Author)

Descriptors :   (*HYDRAULIC EQUIPMENT, VIBRATION), CONTROL SYSTEMS, HYDRODYNAMICS, DAMS, STABILITY, SHEAR STRESSES, CAVITATION, MATHEMATICAL MODELS

Subject Categories : Civil Engineering
      Hydraulic and Pneumatic Equipment
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE