Introduction

Tdyn is an environment for multi physics simulation, using a stabilised (FIC) finite element method.

Tdyn includes different modules that allow to solve Heat Transfer in both solid and fluids (HEATRANS module), Turbulence (RANSOL module), Advection of Species in fluid and solids (ADVECT module), Structural mechanics (RAMSOLID module) and Free Surface (NAVAL and OODLS modules) problems using the same stabilised scheme mentioned above. Tdyn also includes a module for geometry and data definition and post-processing of the analysis results (PREPOST module) based in the Custom GiD system.

By using Tdyn it is also possible to configure additional user defined partial differential equations (PDE) solvers in both fluid and solid materials (URSOLVER module) and to couple them with any of the other problems.

Finally, ALEMESH module can be used to simulate problems where mesh deformation (i.e. body movement) may occur.

The different modules of Tdyn are fully integrated and the complete environment is used as one single program.

A more detailed explanation of the capabilities of every Tdyn module is given next.

The analysis of a problem by means of Tdyn, consists of the following basic steps (see Figure 1):