Please use this identifier to cite or link to this item:
|Title:||An arbitrary Lagrangian-Eulerian gradient smoothing method (GSM/ALE) for interaction of fluid and a moving rigid body||Authors:||Wang, S.
Computational fluid dynamics
Fluid-rigid body interaction
|Issue Date:||Jan-2013||Citation:||Wang, S., Khoo, B.C., Liu, G.R., Xu, G.X. (2013-01). An arbitrary Lagrangian-Eulerian gradient smoothing method (GSM/ALE) for interaction of fluid and a moving rigid body. Computers and Fluids 71 : 327-347. ScholarBank@NUS Repository. https://doi.org/10.1016/j.compfluid.2012.10.028||Abstract:||The gradient smoothing method (GSM) was recently proposed for fluid dynamic problems governed by the Navier-Stokes equations, using unstructured triangular cells. This work extends the GSM to solve the fluid-rigid body interaction problems, by combining the GSM with the arbitrary Lagrangian-Eulerian (ALE) method to handle moving solid in fluids. A moving mesh source term derived directly from the geometric conservation law is incorporated into the discrete equations to ensure the recovery of uniform flow while the mesh is moving. The artificial compressibility formulation is utilized with a dual time stepping approach for accurate time integration. The gradient smoothing operation is utilized based on carefully designed node/mid-point associated gradient smoothing domains for the 1st-/2nd-order spatial approximations of the field variables at the nodes. To ensure the spatial stability, the 2nd-order Roe flux differencing splitting unwinding scheme is adopted to deal with the convective flux. Convergence, accuracy and robustness of the proposed method, i.e. GSM/ALE, are examined through a series of benchmark tests. Numerical results show that the proposed method can preserve the 2nd-order spatial/temporal accuracies, and produce reliable results even on extremely distorted mesh. Good agreement of calculated results with the reference ones in several examples indicates the robustness of the proposed method for solving fluid-rigid body interaction problems. © 2012 Elsevier Ltd.||Source Title:||Computers and Fluids||URI:||http://scholarbank.nus.edu.sg/handle/10635/59422||ISSN:||00457930||DOI:||10.1016/j.compfluid.2012.10.028|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Mar 23, 2023
WEB OF SCIENCETM
checked on Mar 14, 2023
checked on Mar 16, 2023
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.