Create Intelligent Models

FloTHERM features the most complete and technically advanced model creation environment for the thermal design of electronics. Models that range in scale from single ICs on a PCB to full racks of electronics are assembled quickly from a complete set of SmartParts (intelligent model creation macros) that are supplied with FloTHERM or from a large list of suppliers from around the globe that use FloTHERM. SmartParts capture modeling expertise that has been developed within Mentor Graphics over the past 15 years to streamline model creation, minimize solve times and maximize solution accuracy.

Grid in FloTHERM is associated with SmartParts and is generated as part of the model assembly process with refinement under user control. This intuitive and straightforward methodology enables engineers to focus on design rather than analysis. Gridding is instantaneous and reliable in FloTHERM as compared to traditional tools that require significant time and expertise to master. Finally, FloTHERM is the only analysis software with object-associated grid that eliminates re-gridding for each model modification.

Tight integration with MCAD and EDA

FloTHERM features the industry’s best solution for integration with MCAD and EDA software. Native data from Pro/Engineer, SolidWorks, Catia, and other MCAD and EDA software can be imported into FloTHERM. Unlike other CAD to analysis interoperability solutions, FloTHERM automatically prepares the geometry for efficient and accurate analysis.

Use of a Robust Structured Cartesian Mesher Minimizes Solution Time

FloTHERM grid is structured-Cartesian, the most stable and numerically efficient type of grid available. The ability to localize is also included for finer resolution where it is needed, minimizing solution time and avoiding the penalty of grid cells that “bleed.”

Automatic Optimization

SmartPart-based modeling and structured cartesian grid enable a feature called “automatic sequential optimization” that is unique to FloTHERM. This allows users to specify a design goal and then let FloTHERM do the hard work of finding the right combination of design variables that meet the goal. Common applications of this feature include optimization for heat sink design, PCB component placement, fan/blower selection and other common design scenarios.

Automatic sequential optimization enables engineers to find design margin or production cost savings that were impractical in the past. As an alternative to automatic sequential optimization, a design of experiments (DoE) can be constructed that will automatically analyze the full range of all possible combinations of parametric variations. These models can be solved on a distributed network of computers using the unique “Volunteer” solution technology.

Finely-tuned Solver

For over 15 years, the FloTHERM solver has specifically addressed electronics cooling applications. The solver, based on a cartesian gridding system, results in the most accurate results possible and the fastest solution time per grid cell. Massive disparency in geometric length scales are resolved using the unique ‘localized-grid’ technique, which allows for integrally matched, nested, non-conformal grid interfaces between different parts of the solution domain.

The conjugate nature of heat transfer within electronic systems is concurrently solved using a preconditioned conjugate residual solver together with a flexible cycle multi-grid solution technique. Pragmatic, unique and accurate solution termination criteria produce useful results in engineering, not academic, time scales.

Powerful Visualization Tools

The FloTHERM visualization toolset is developed specifically to maximize productivity for cooling design of electronics. Fully rendered models, 3D flow animation and tools for dynamic manipulation of temperature, and flow results, enable engineers to pinpoint thermal issues and visualize design improvements quickly and effectively. Texture mapping and AVI output enables communication of thermal-design concepts with non-technical colleagues.