Immersed Boundary Method Application as a Way to Deal with the Three-Dimensional Sudden Contraction
AbstractThe immersed boundary method has attracted considerable interest in the last few years. The method is a computational cheap alternative to represent the boundaries of a geometrically complex body, while using a cartesian mesh, by adding a force term in the momentum equation. The advantage of this is that bodies of any arbitrary shape can be added without grid restructuring, a procedure which is often time-consuming. Furthermore, multiple bodies may be simulated, and relative motion of those bodies may be accomplished at reasonable computational cost. The numerical platform in development has a parallel distributed-memory implementation to solve the Navier-Stokes equations. The Finite Volume Method is used in the spatial discretization where the diffusive terms are approximated by the central difference method. The temporal discretization is accomplished using the Adams-Bashforth method. Both temporal and spatial discretizations are second-order accurate. The Velocity-pressure coupling is done using the fractional-step method of two steps. The present work applies the immersed boundary method to simulate a Newtonian laminar flow through a three-dimensional sudden contraction. Results are compared to published literature. Flow patterns upstream and downstream of the contraction region are analysed at various Reynolds number in the range
Share & Cite This Article
Borges, J.E.; Lourenço, M.; Padilla, E.L.M.; Micallef, C. Immersed Boundary Method Application as a Way to Deal with the Three-Dimensional Sudden Contraction. Computation 2018, 6, 50.
Borges JE, Lourenço M, Padilla ELM, Micallef C. Immersed Boundary Method Application as a Way to Deal with the Three-Dimensional Sudden Contraction. Computation. 2018; 6(3):50.Chicago/Turabian Style
Borges, Jonatas E.; Lourenço, Marcos; Padilla, Elie L.M.; Micallef, Christopher. 2018. "Immersed Boundary Method Application as a Way to Deal with the Three-Dimensional Sudden Contraction." Computation 6, no. 3: 50.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.