MATLAB and EXCEL Integration

Integrated Analysis Environments for Heat Transfer and Fluid Flow

"As technology matures, it disappears."
                                            - M. Weiser, Xerox PARC (paraphrased)

One of our key jobs at CRTech is to make our thermal/fluid solution technologies disappear ... to become components of a custom multidisciplinary design environment.

CRTech provides best-of-class user-extensible heat transfer and fluid flow design and analysis capabilities accessible through both geometric and nongeometric user interfaces. But we realize that some customers’ needs are best served with their own custom environment or interface. We are also strong proponents of system-level trade studies and other high-level design tasks that require the feedback of many specialized analyses and considerations: structural, electrical, CFD, aerothermal, optical, reliability, life cycle cost (LCC) or net present value (NPV), etc.

Therefore, not only are our tools highly extensible and customizable, and not only are they fully parametric and able to respond dynamically to model changes, but we also provide APIs (advanced programmer interfaces) and other tools for integrating SINDA/FLUINT and Thermal Desktop®, RadCAD®, FloCAD® solution technologies into a higher-level design evaluation system. Such capabilities are available for codes such as Microsoft Excel®, Comet Solutions, Engineous’ iSIGHT® or Phoenix Integration’s ModelCenter®, and we welcome the opportunity to create additional connections.

Download API Brochure

MATLAB® as an Example

Example of NREL Advisor IntegrationTo illustrate the possibilities, the interchange with Mathworks' MATLAB® and Simulink® is briefly described. SINDA/FLUINT can be started as a subprocess of MATLAB on a PC. “Registers” and other data values can be passed back and forth between SINDA/FLUINT and MATLAB, as commanded from either code. SINDA/FLUINT’s execution can be suspended and restarted from MATLAB, which can send signals back to SINDA/FLUINT to perform operations such as redo a steady-state analysis, advance a transient time step, perform an optimization, or everything else that is accessible from within SINDA/FLUINT’s user logic blocks (which is almost everything).

Thermal Desktop’s Dynamic Mode can be used to further expand this system, by calling for new Thermal Desktop or RadCAD geometric (radiative, thermal contact, FEM, FDM, etc.) solutions from within SINDA/FLUINT, perhaps as directed from MATLAB.

Although most such integrations are proprietary, an example of one that is documented publicly is NREL’s ADVISOR used for integrated automobile design.

Relevant Links: MDO and MDA

Additional Resources

Contact CRTech for MATLAB interface examples or see the example on our User Forum.

Contact CRTech for Excel TD Controller.


Customizable Multidiscipline Environments for Heat Transfer and Fluid Flow Modeling, ICES 2004

FloCAD online training

Class times: May 2 & 4 from 10am to 2pm MT

Cost: $425

This online class will provide an introduction to fluid modeling components within FloCAD. The class will be held over a 2-day period, with daily sessions running approximately 4 hours each. The class uses a mixture of lecture, demonstrations, and self-paced tutorials to allow attendees to practice building fluid system models and interpreting results. The presentations will comprise 2 - 3 hours of each session, and the instructor will be available during the remainder of the time for questions during tutorials. Attendees must have basic working knowledge of SINDA and Thermal Desktop as these topics will not be covered but their usage is required for FloCAD.

Register here

Thermal Desktop, RadCAD, and TD Direct in-class training

Date: April 25-28, 2017, 8:00 a.m. to 5:00 p.m., daily
Location: Lakewood, CO

CRTech will be hosting introductory training for Thermal Desktop, RadCAD and TD Direct. Lecture and hands-on tutorials introduce attendees to basic Thermal Desktop and RadCAD usage and allow practice building models and interpreting results. The class will also introduce students to SpaceClaim direct modeling CAD interface and advanced meshing tools in TD Direct.

Daily Schedule

Day 1 and 2: Introduction to SINDA and Thermal Desktop
Day 3: Introduction to RadCAD
Day 4: Introduction to TD Direct

To learn more about this class and to register, visit our Training Page.

Anode and cathode of a flow battery

Using Sinaps? It is not too soon to get started with TD/FloCAD!

This webinar describes the process for converting from Sinaps to Thermal Desktop (TD) and FloCAD. This process includes using an exporter which works with Version 6.0 of the CRTech tool suite (expected to be released in May of 2017).

Come learn about the basics of TD/FloCAD, including many compelling features not available in Sinaps. The webinar will also cover how to manage the transition period, during which you may be using both programs simultaneously. This is also a chance to ask questions. 

If you missed this webinar, please contact us for the presentation material and recording.