Abstract: A laminar boundary-layer model is proposed to account for viscous losses during the transient turbulent flow of a liquid in a tube. In this model, inviscid slug flow is assumed for the core ...

Abstract: A single boundary layer model to account for transient viscous effects is applied to small amplitude sinusoidally disturbed turbulent flow in a tube. The viscous dissipation is calculated using ...

Abstract: The basic relationships for transient flow in a straight tube are investigated for the case of axial boundary motion. Viscous effects and other small terms are neglected allowing the problem ...

Abstract: It is generally assumed that orifices and valves follow closely their steady-state characteristics during transient operation. However, this assumption of quasisteady behavior may lead to errors ...