pulsating flow in a pipe journal of fluid mechanics

(PDF) On pulsating flow of polymeric fluids Nhan Phan

167 Journal of Non-Newtonian Fluid Mechanics, 4 (1978) 167-176 0 Elsevier Scientific Publishing Company, Amsterdam - Printed in The Netherlands zyxwvutsrqponmlkj ON PULSATING FLOW OF POLYMERIC FLUIDS N. PHAN-THIEN Department of Mechanical Engineering, Sydney University, Sydney 2006 (Australia) (Received October 14,1977) The flow problem of an elastico-viscous fluid in a straight circular pipe under the influence of a fluctuating pressure gradient

(PDF) Pulsating flow in a pipe - ResearchGate

Abstract. Turbulent and laminar pulsating flows in a straight smooth pipe are compared at identical frequencies and Reynolds numbers. Most measurements were made at Experimental Investigation on Pulsating Flow in a Bendcycle pulsating flow was generated by superimposing an oscillating flow driven by a piston installed in a scotch yoke mechanism on a steady flow supplied by a pump. Thus, the instantaneous axial velocity averaged over the cross section, W. a, can be eed in the form . =, + (1) Here, (= t

Fully developed pulsatile flow in a curved pipe Journal

Pulsatile viscous flow in a curved pipe:Effects of pulsation on the development of secondary flow. International Journal of Heat and Fluid Flow, Vol. 31, Issue. 5, p. 879. International Journal of Heat and Fluid Flow, Vol. 31, Issue. 5, p. 879. Pulsating flow in a pipe University of ArizonaApr 01, 1985 · Turbulent and laminar pulsating flows in a straight smooth pipe are compared at identical frequencies and Reynolds numbers. Most measurements were made at a mean Reynolds number of 4000, but the influence of Re was checked for 2900 < Re < 7500.

Pulsating pipe flow with large-amplitude oscillations in

Pulsating turbulent pipe flow in the current dominated regime at high and very-high frequencies. International Journal of Heat and Fluid Flow, Vol. 58, Issue. , p. International Journal of Heat and Fluid Flow, Vol. 58, Issue. , p. The effect of pulsation frequency on transition in We here focus on the simplest pulsatile flow:fluid is driven through a straight cylindrical pipe at an unsteady flow rate. Despite recent advances in understanding the transition to turbulence for steady pipe flow (see e.g. Barkley ( Reference Barkley 2016 ) for a recent review), the stability and transition of pulsatile pipe flow remain

Transition to turbulence in pulsating pipe flow Journal

The transition to turbulence in pulsating pipe flow can be separated into three regimes. (i) In the high frequency limit $\unicode[STIX]{x1D6FC}\gtrsim 12$ the transition threshold is unaffected by flow pulsation. Presumably here flow rate changes are too fast for turbulence to react and hence turbulence becomes sustained when the average Reynolds number is equal to the steady state threshold. VIBRATION OF A FLEXIBLE PIPE CONVEYING VISCOUS Feb 17, 2000 · Poisson coupling between the pipe wall and fluid is also incorporated in the model. A combination of the finite difference method and the method of characteristics is employed to extract displacements, hydrodynamic pressure and flow velocities from the equations. A numerical example of a pipeline conveying fluid with a pulsating flow is given and discussed.

Pulsating flow in a pipe Journal of Fluid Mechanics

Apr 20, 2006 · Turbulent and laminar pulsating flows in a straight smooth pipe are compared at identical frequencies and Reynolds numbers. Most measurements were made at a mean Reynolds number of 4000, but the influence of Re was checked for 2900 < Re < 7500.

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