Mathematics: Numerical Analysis and Scientific Computing: Finite Volume Methods for Advection Diffusion on Moving Interfaces and Application on Surfactant Driven Thin Film Flow - Softcover

Nemadjieu, Simplice Firmin

Softcover

ISBN 10: 3659263001 ISBN 13: 9783659263002

Publisher: LAP LAMBERT Academic Publishing, 2012

Synopsis

The book is divided into two parts. First, we present two finite volumes schemes for the discretization of convection-diffusion-reaction problems on moving surfaces. The first scheme extends the two points flux approximation finite volumes on moving surfaces. The second scheme presents a finite volume scheme of type O-method. Here, we construct around the mesh vertices a linear approximation of the solution to the given problem using the unknowns located at cells' centers. A suitable flux continuity on cells interfaces in incorporated. The method allows also the construction of a second order upwind for convection operators; which makes the overall scheme second order in space. Next, we model the flow of a surfactant driven thin-film. Here, the use of tensor theory combined with lubrication approximation helps to reduce the Navier-Stokes equations describing the flow of the thin-film in three dimensions to a fourth order equation stated on the moving curved surface whose unknown is the film height. The surfactant, assumed to be insoluble, is modeled by a convection-diffusion equation on the fluid-air interface. We simulate the coupled system using an interface tracking method.

About this title

About the Author

Simplice Firmin Nemadjieu was born on the 18th February 1975 in Bafang-Cameroon. He studied mathematics at the university of Douala, the university of Yaounde and the Higher Teachers Training College in Cameroon. He obtained a PhD in mathematics in 2012 at the university of Bonn in Germany.

Edition details

• Publisher: LAP LAMBERT Academic Publishing
• Publication date: 2012
• ISBN 10: 3659263001
• ISBN 13: 9783659263002
• Binding: Paperback
• Language: English
• Number of pages: 152