Direct simulation of viscous flow in a wavy pipe using the lattice Boltzmann approach
by Lian-Ping Wang, Michael H. Du
International Journal of Engineering Systems Modelling and Simulation (IJESMS), Vol. 1, No. 1, 2008

Abstract: Direct numerical simulation of three-dimensional (3D) viscous flow in a wavy pipe is performed using the lattice Boltzmann approach, to study 3D flow features in a curved pipe with nonuniform curvature. We first validate the lattice Boltzmann approach by simulating a transient flow in a straight pipe. In a wavy pipe, it is shown that the pressure gradient necessary to drive the flow depends more strongly on the flow Reynolds number, due to curvature – induced fluid inertial force and transverse secondary flows. The wavy pipe could provide a simple design for enhancing mixing and heat transfer in pipes.

Online publication date: Thu, 19-Jun-2008

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