Abstract. This paper discusses numerical simulation techniques using a moving mesh approach together with the multigrid fictitious boundary method (FBM) for liquid-solid flow configurations. The flow is computed by an ALE formulation with a multigrid finite element solver (FEATFLOW), and the solid particles are allowed to move freely through the computational mesh which can be adaptively aligne...

Problem based learning (PBL) has gained widespread approval as a student centered and student activating approach to teaching and learning. At Aalborg University this approach has been applied since the foundation of the university in 1974 and the so called Aalborg model has to some extent been developed through ‘learning by doing’. In recognition of the long experience with PBL the university ...

We model high income earners as sellers of quality services in a competitive assignment framework. Sellers (high income earners) are differentiated by ability; buyers by their taste for the service. There is assortative matching of buyers and sellers. We show that conventional optimal tax formulas are modified both by a social concern for buyers and an altered mapping of the talent into the inc...

We present our recent work on interface reconstruction in a logically structured Lagrangian CFD code that now incorporates the MoF system developed by Shashkov’s group at LANS. We also discuss the models used to update and re-map the state variables in the mixed

on account of some complexities such as fluid-structure interaction and extra-large deformation problems, complete simulation of abrasive water jet cutting process is very hard. the main goal of this paper is to overcome these difficulties through comprehensive simulation in ls-dyna commercial software. for this purpose the smoothed particle hydrodynamics (sph) and arbitrary lagrangian eulerian...

Computer-delivered educational material has great potential for customisation to meet the requirements of individual users, in particular students with disabilities. An adaptive learning environment (ALE) is a system which analyses the student's performance at each stage, using the results to generate the next section's content. This has always been the practice in traditional teaching, but is ...

We study the numerical approximation of a flow problem governed by a viscoelastic model coupled with a one-dimensional elastic structure equation. A variational formulation for flow equations is developed based on the Arbitrary Lagrangian-Eulerian (ALE) method and stability of the time discretized system is investigated. For decoupled numerical algorithms we consider both an explicit scheme of ...