An experimental investigation of the quasisteady turbulent pulsating flow in a pipe

Turbulent pulsating pipe flow is investigated at 3600 < Re < 9000 and a period of forcing 0.55 sec < T < 5.5 sec. Velocities at the exit plane of the pipe and the pressure drop along the pipe are measured simultaneously and processed by a computer. The conditions of the quasisteady behavior of the flow are defined, and some conclusions regarding the details of the steady turbulent pipe flow are drawn from the nonsteady measurements.