This new release offers many new solutions for multiphysics simulation needs and advances ease of use and the user’s ability to secure powerful and eye-catching results. The following summary highlights the key new benefits offered in Version 9.3
The unstructured memory allocation technique introduced in FLOW-3D Version 9.2 is a major benefit for users because of its drastic reduction to solver memory and CPU time requirements. However, when the full fluid/solid heat transfer model is needed, the memory savings were effectively lost because all computational cells were required to be “active.” In Version 9.3, a user can define a maximum thermal penetration depthto limit the thermal solution to the volume along the component’s open surface bounded by this depth. Everything outside of this volume is removed from the calculation, resulting in much faster simulations.
Casting users should benefit greatly from this feature. For example, during a die casting filling, heat penetrates the die by only several millimeters and, therefore, solving heat transfer throughout the entire die is unnecessary. If the user defines the thermally-active layer thickness to be, for example, 5 mm, only cells within that layer are retained in the calculation, potentially reducing the total number of cells in the model several fold. Latest crack by caxcad site
Navigator and Workspaces
A new Navigator feature in the FLOW-3D graphical user interface allows users to manage several simulations within the same FLOW-3D session, including building models, running the solver and post-processing results. New Workspaces, containing groups of simulations that may be related to the same project,help the user better organize their work. All simulations in a workspace can be executed sequentially at a click of a button. Simultaneous execution of several simulations is also possible. Multiple Workspaces can be created within a single GUI session.
Runtime changes to solver parameters
It’s not uncommon for users to want to make changes to the numerical settings of a simulation to make it run more accurately and efficiently.
There can be more than one reason to change settings, e.g., poor convergence, a small time-step size, a mentor tip, or just an omission in the model setup. A new Runtime Options tool in Version 9.3 is designed to help in such situations, allowing the user to change most of the numerical options during the simulation without the need to stop or even pause it.
New Modeling Capabilities
Elastic membranes and walls
Version 9.3 enables users to model fluid-structure interaction with elastic membranes and elastically-flexing walls. The model simulates the manner in which the small deformations of these types of membranes and walls impact the motion of the adjacent fluid, as well as showing how pressures in the fluid affects the deformations. These fluid-structure interactions are fully coupled.
The model is more fully described in Flow Science
2008-11-09
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