- New parallel processing capabilities that provide dramatic performance improvements for fluid structure interaction (FSI) problems
- Expanded capabilities to solve new classes of FSI problems
- Improved user efficiency
Speedier FSI Simulations
Dytran 2010 now includes advanced Distributed Memory Parallel (DMP) capabilities for Euler (fluid) and coupled analysis (fluid-structures) resulting in significant performance improvements for CPU intensive fluid-structure interaction applications.
The supported features for DMP include single and multi-material hydro Euler, ROE solver, failed elements in coupling surface, graded and biased mesh, coupling surface output and markers, geometric boundary conditions and viscosity. Improved performance translates to higher value for users.
Performance Benefit Example
A ballistic impact problem was modeled purely by Eulerian elements where a bullet impacts a steel plate at a high velocity. The model consisted of 90,000 Hex Eulerian elements. This model was run on Windows 64 bit and Linux 8664 systems. There was a 50% speed up with 2 CPUs compared with a single CPU run. With an 8-CPU system, Windows provided a speed up of over 2.7 times, and Linux system provided a speed up of over 3.7 times.
Solve New Classes of Problems
Cyclic flow boundary is a common CFD-boundary condition with applications in turbines, flow between rotating structures and pipe flow problems. Users can now easily specify two boundary conditions that will form the cyclic boundary by linking outflow at one boundary with inflow at another.
For example, in a problem of an oil pump turbine blade analysis, users can model only a small cross-section, thus reducing the model size while maintaining requisite mesh density for desired accuracy. Also, in studies involving wave propagation through infinitely long channels, relating outflow with inflow helps reduce the model size, while overcoming wave degradation problems.
With the added flexibility to apply material specific body force for different materials inside a region, flow of materials can be controlled better. This can be used to define a magnetic field enabling the material to move together under gravity or acceleration and has applications in simulating flow problems in copiers and toners.
"I have been using MSC Dytran to successfully solve many challenging fluid-solid interaction problems," said Sang Lee, Lockheed Martin. "The coupling is very easy to set up and user friendly, and the technical assistance provided by MSC is outstanding."
"Our software development initiatives continue to focus on improving solver performance so our customers can achieve faster results during simulations and make better decisions related to product design," said Sanjay Choudhry, VP, Product & Release Management at MSC.Software. "This release of Dytran 2010 delivers game changing performance improvements for fluid structure interaction (FSI) problems."
For more information about new features in Dytran 2010, listen to the On-Demand webinar at http://www.mscsoftware.com/events/webcasts/dytran/Dytran042810/Dytran_2010.html.
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