AltaSim Training

For many years, instructor-led training was the only available option for students seeking to learn.  In recent years, e-learning has become another method of learning.  Both methods provide value to students.  E-learning educates students on specific, concise topics at a much lower cost than instructor-led training.  However, e-learning does not fit every learning situation.
 
AltaSim trains our students to solve problems using COMSOL Multiphysics through instructor-led training provided in our classroom or delivered via the web.  In both cases, the training is live and led by an instructor.  We believe that this approach to training provides significant benefits, because COMSOL Multiphysics solves highly complex problems.  For these types of problems, having a live instructor has proven to be extremely valuable to our students.  In our classes, highly skilled instructors answer our student’s difficult questions with detailed answers backed up by 10+ years of experience.  Our instructors use COMSOL Multiphysics every day to solve difficult problems for our clients.  In addition, they have extensive experience translating that learning into their teaching.
 
We have also observed the power of learning in a classroom.  Students learn from each other through their interactions in the classroom, and by hearing answers to other student’s questions.  In our advanced classes, the students are all working in similar physics (e.g., CFD, RF, acoustics), and the cross pollination of ideas has been powerful.
 
Our students are typically high-value employees of their companies, and instructor-led training is an excellent investment in these employees.  They feel valued by being able to attend high-quality training, and the training helps them be more efficient and effective in their problem solving.
 
Click here to reserve time for a free training needs assessment with AltaSim

Saving Time and Money for Rockwell Automation

Problem: As Rockwell Automation looked to improve product functionality, engineers relied on developing physical prototypes to test heat sink designs for its powerful microprocessor chips. This approach left mechanical engineers scrambling at the end of the design cycle to find an electronics cooling solution that would fit the prototypes and not delay new product releases.

 

Solution: Rockwell leveraged AltaSim’s extensive simulation expertise to quickly deliver accurate simulations through increasingly complex models for a wide range of product design calculations.

 

Result: AltaSim’s simulations enabled Rockwell to test electronics cooling solutions prior to the costly development of the first physical prototypes. This approach reduced Rockwell’s reliance on physical prototyping, driving down both the duration and cost of the design cycle.

Electronics Cooling Results

Air flow and temperature inside Electronics Cabinet

 

Interested in learning more about how our S3 process can accelerate your design process?  Please call us at 614-861-7015, or complete the webform provided:

 

Solver Speed-up for Conjugate Heat Transfer with Radiation

COMSOL Multiphysics® can solve conjugate heat transfer problems that include conduction, convection and radiation.  Both Surface-to-Ambiant and Surface-to-Surface radiation formulations are available.  Follow this link June 2019 COMSOL Electronics Cooling Webinar for our recent Webinar that includes a step by step demonstration of implementation in COMSOL Multiphysics®.

When using Surface-to-Surface radiation, we strongly recommend that the radiation variables are located within their own separate Segregated Sub-Step (see step-by-step set-up below).  This simple change can have a significant effect on simulation time.  For example, we recently observed a reduction in the time for a solution, from 12 hours to 2 hours.

Video of step-by-step instructions:

Written step-by-step instructions:
Right-click on Segregated 1 and select ‘Segregated Step’.

Right-click on Segregated Step 3 and select ‘Move up’ to move it above the Lower Limit feature.

Click on Nonisothermal flow u, p, T and in the settings window hold Ctrl and click on the two Inward heat flux variables.  Then, click the ‘Delete’ icon to remove them from this step

Click on Segregated Step 3 and in the settings window click the ‘+ (plus)’icon.  Hold Ctrl and select both inward heat flux variables to add them to the list.  Finally, change the linear solver to Algebraic Multigrid ht (htrad1) to use the iterative linear system solver set-up recommended for radiation variables. 

 

You have now moved the radiation variables into a separate segregated sub-step.

How did this change affect your run time?  We would enjoy hearing about the impact of this change on your analyses.

To read more about Electronics Cooling, check out these AltaSim blog posts:

HeatSinkSim – Changing Electronics Cooling

Heat Sink Design

Approaches to Thermal Mitigation

Improved Thermal Analysis for Electronics Cooling

Solver Speed-up for Conjugate Heat Transfer with Radiation

COMSOL Multiphysics® can solve conjugate heat transfer problems that include conduction, convection and radiation.  Both Surface-to-Ambiant and Surface-to-Surface radiation formulations are available.  Follow this link June 2019 COMSOL Electronics Cooling Webinar for our recent Webinar that includes a step by step demonstration of implementation in COMSOL Multiphysics®.
 
When using Surface-to-Surface radiation, we strongly recommend that the radiation variables are located within their own separate Segregated Sub-Step (see step-by-step set-up below).  This simple change can have a significant effect on simulation time.  For example, we recently observed a reduction in the time for a solution, from 12 hours to 2 hours.

Video of step-by-step instructions:

Written step-by-step instructions:
Right-click on Segregated 1 and select ‘Segregated Step’.

Right-click on Segregated Step 3 and select ‘Move up’ to move it above the Lower Limit feature.

Click on Nonisothermal flow u, p, T and in the settings window hold Ctrl and click on the two Inward heat flux variables.  Then, click the ‘Delete’ icon to remove them from this step

Click on Segregated Step 3 and in the settings window click the ‘+ (plus)’icon.  Hold Ctrl and select both inward heat flux variables to add them to the list.  Finally, change the linear solver to Algebraic Multigrid ht (htrad1) to use the iterative linear system solver set-up recommended for radiation variables. 

 

You have now moved the radiation variables into a separate segregated sub-step.
 
How did this change affect your run time?  We would enjoy hearing about the impact of this change on your analyses.
 
To read more about Electronics Cooling, check out these AltaSim blog posts:
 
HeatSinkSim – Changing Electronics Cooling

Heat Sink Design

Approaches to Thermal Mitigation

Improved Thermal Analysis for Electronics Cooling

Free Webinar: Simulating Thermal Management in Structures

Engineers spend extensive time developing thermal management solutions for structures subjected to high or low temperatures. These challenges continue to grow as more complex structures and temperature distributions are required for nominal operations. In many cases, operational changes during the life of the structure have unintended and damaging consequences that require engineers to develop unique solutions to the damage that develops.

 

Standard heat transfer mechanisms like convection, conduction, and radiation need to be considered in determining the thermomechanical load on a structure. Accurate representation of convective heat transfer may require a fluid dynamics solution, and internal heat generation may be a primary heat source.

Temperature distribution in an aluminum plate during a friction stir welding process

In this presentation, AltaSim’s Kyle Koppenhoefer will discuss the development of a model structure subjected to a complex thermal environment. The webinar will also include a live demo in the COMSOL Multiphysics® software and a Q&A session.

 

Date:  Thursday, April 18, 2019
Time:  2:00pm EDT
Duration: 1 hour

 

 

 

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