Simulation of Nonlinear Ship Flows by Density-Function Method

Efficient simulation of nonlinear viscoelastic fluid flows

This paper presents a new and efficient method for computing the flow of a non-Newtonian fluid. The approach is based on two independent concepts: Time-dependent simulation of viscoelastic flow: A new decoupled algorithm, presented in P. Saramito, Simulation numerique d'ecoulements de fluides viscoelastiques par eRments finis incompressibles et une methode de directions alternees; applications,...

The Nonlinear Galerkin Method: A multi-scale method applied to the simulation of homogeneous turbulent flows

82 Conclusions In this article, we have proposed a multilevel method which treats diierently the large and the small scales of homogeneous isotropic ows. Moreover, we have derived mathematical estimates for all the parameters (cut-oo level, time scales) involved in this dynamical procedure leading to a completely self-adaptive procedure. Firstly, several computations have been conducted in the ...

Simulation of unsteady flows by the DSMC macroscopic chemistry method

In the Direct Simulation Monte Carlo method, a combination of statistical and deterministic procedures applied to a finite number of ‘simulator’ particles are used to model rarefied gas-kinetic processes. Traditionally, chemical reactions are modelled using information from specific colliding particle pairs. In the Macroscopic Chemistry Method (MCM), the reactions are decoupled from the specifi...

FEM Updating of Ship Structure by The Sensitivity Equation of Transmissibility Function

This study presents a novel sensitivity-based finite element model updating approach to estimate structural parameters using output-only data. A quasi-exact sensitivity relation based on transmissibility data is introduced. Partially measured structural responses are included in mathematical formulations to address incomplete measurement problems and improve the accuracy of the sensitivity rela...

Filtered Density Function for Large Eddy Simulation of Turbulent Reacting Flows on Unstructured Meshes