Article ID Journal Published Year Pages File Type
767169 Communications in Nonlinear Science and Numerical Simulation 2012 10 Pages PDF
Abstract

A start-up flow of a viscous incompressible fluid in a T-junction channel is studied numerically. The flow starting from rest is driven by a constant pressure drops suddenly applied between the entries and exits of a planar T-junction channel. The Navier–Stokes equations in primitive variables are solved numerically using finite-volume techniques. Predicted variations with time of the volume flow rates and the flow patterns are presented for several values of pressure drops. It has been shown that a start-up flow can pass through different regimes (or different flow direction) before asymptotically reaching steady state distribution.

► Start-up flow in a planar T-junction channel is studied. ► Flow starting from rest and driving by pressure drops between the entries and exits. ► Volume flow rates are unknown a priori and are an outcome of numerical solution. ► Start-up flow can pass through different regimes before reaching steady state.

Related Topics
Physical Sciences and Engineering Engineering Mechanical Engineering
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