Abstract: The results of an experimental investigation into the flowfield characteristics of butterfly valves under compressible flow operating conditions are reported. The experimental results include Schlieren ...

Abstract: The results of an experimental investigation of the aerodynamic torque characteristics of butterfly valves under compressible flow conditions are reported. Both three-dimensional prototype valves ...

Abstract: The results of an experimental investigation concerning the operating characteristics of two similar butterfly valves mounted in series are reported. Emphasis is given to the influence of the ...

Abstract: The results of an experimental investigation concerning the operating characteristics of a butterfly valve downstream of a mitered elbow are reported. Primary emphasis is given the influences of ...

Abstract: Compressible flow characteristics including mass flowrate, onset of “choked” flow, stagnation pressure loss, and static pressure recovery have been investigated for butterfly valves. A simplified ...