Intelligent Light and FieldView

UT Knoxville's James Coder - An agent of change in aviation

We are excited to welcome Professor James Coder and his computational aerodynamics research team at the University of Tennessee, Knoxville as a new University Partner for 2017-18. 

Professor James Coder, Intelligent Light University Partner

NASA recently selected Professor Coder to lead a team pursuing aviation breakthroughs designing an ultra-efficient aerodynamic wing enabling substantial reductions in fuel or energy consumption. Funded by NASA's Aeronautics University Leadership Initiative, the team includes researchers from Penn State University, Texas A&M University, the University of Illinois Urbana-Champaign, Rutgers University, the University of Wyoming and two aviation companies—the Boeing Corporation and Airfoils, Inc. Many of these organizations are also Intelligent Light customers and FieldView users.

"Potential outcomes of the research could include revolutionary technologies, operational concepts, design tools, models, or other advancements we can't even begin to characterize today," said Doug Rohn, director of NASA's Transformative Aeronautics Concepts Program. 

“ULI... leadership in innovation to contribute to our nation’s aviation community,” - Doug Rohn, NASA

A longtime user of FieldView, Dr. Coder uses FieldView throughout the CFD workflow in conjunction with the team's CFD solvers, OVERFLOW 2 and SU2. 

  • Engineers use FieldView to ensure their simulations are properly set up, visualize the models before committing to simulation runs and for debugging input files.
  • During solver runs, the team uses FieldView to verify correct qualitative solution behavior is present in the code, and to ensure that boundary conditions are being properly enforced.
  • Visualizing results post-processed with FieldView provides high quality images and interactive capability to support interrogation by the engineers. Common visualization tools include surface contour images, constant-coordinate planes/slices and isosurfaces.
  • Much of the group's current research pertains to unsteady flows with resolved turbulent content, FieldView is used to generate isosurfaces of Q-criterion to explore the structure of the turbulence and to spot-check on the length scales being resolved.

"Creating a better wing—one with less drag, one that is more efficient—is where we can really make a difference. This is a game changer for aviation."

James Coder, Assistant Professor of Aerospace Engineering
University of Tennessee, Knoxville

Dr. Coder and Intelligent Light have participated together in the AIAA High Lift Prediction and Rotorcraft Hover Prediction Workshops for several years. 

0 Comments

Uncertainty Quantification (UQ) at ASME V&V Symposium

Uncertainty Quantification (UQ) of CFD data.

Earlier this month at the ASME V&V symposium, Seth Lawrence, a graduate student at our University Partner Northern Arizona University, presented his Master's thesis work on "Verification, Validation and Uncertainty Quantification of Turbulent Twin Jets". Seth was advised by our own Dr. Duque who maintains an adjunct Faculty position @ NAU. This event was Seth's first outing at a major international technical symposium. He did a great job of presenting (and defending) his work to the leaders in the field of V&V/UQ, such as Oberkampf, Roy, Celik and Eca. The work was a Challenge Problem sponsored by the ASME V&V 30 Committee.  GREAT JOB SETH!    

In Uncertainty Quantification (UQ), engineers utilize standardized procedures such as the ASME V&V 20 and V&V 30 guidelines to account for the effects of probabilistic inputs to a CFD simulation to arrive at a non-deterministic answer. Through UQ, an engineer could state with 95% certainty answers to their design question while justifying and documenting how they arrived at their answer.

This challenge problem was the only one at the symposium to focus on UQ. It is a key area of interest for those seeking to capitalize on information gleaned from verification & validation work in new design studies. 

To combine CFD and UQ analysis, Mr. Lawrence created an automated workflow using FieldView to post-process the results of Fluent solutions and pass data to Dakota (Sandia National Lab) and then pass data from Dakota as input to Fluent in an iterative process. FieldView was also used to visualize the CFD data to create images for the presentation and 3D PDF to share results.

"Seth did a great job presenting to the leaders in the VVUQ community. His work was well received and cited by other presenters later in the symposium.  It was gratifying to hear statements among veteran symposium participants including 'This is the first time I've seen error bars on a CFD result, very impressive.'"

Earl P. N. Duque, PhD Manager of Applied Research at Intelligent Light

Mr. Lawrence noted that he enjoyed the chance to see how the experts in this field approached the benchmark ASME turbulent twin jet numeric model validation problem.

Professor Tom L. Acker from NAU and Intelligent LIght's Earl P.N. Duque served as advisers on the project.

​Mr Lawrence used the 3D PDF export capability in FieldView throughout the development of the CFD model, allowing him to easily share results of his grid convergence study (CGI) and in the observed order of the solver (p-obs). 3D PDF files are downloadable below.

"Throughout the development of the CFD model, I made good use of the 3D PDF generator that is available in the new FieldView 16.1 package. This was very helpful in the presentation of model results, and provided the ability to easily send detailed model results of large CFD datasets in the form of a small file via email, and the recipient does not need any special software to view the 3D PDF results - fantastic!"

Seth Lawrence, Northern Arizona University

Download 3D PDF. 

Numerical uncertainty in y-velocity.

Download 3D PDF.

Observed y-velocity.

Adobe Acrobat Reader recommended for viewing. Do not attempt to open these 3D PDF documents from your web browser. It will fail, showing a black window with a colorbar. Adobe Acrobat Reader is needed to properly display the 3D content contained in these documents.  Once loaded in Adobe Acrobat Reader, the following message may appear, depending on your security settings: "3D content has been disabled. Enable this feature if you trust this document". From the Options menu, select "Trust this document…" and click anywhere in the document to cause a refresh of the graphics.


0 Comments

CFD at Wilson Labs highlighted on Golf Channel’s Driver vs. Driver

Click to view the show segment on YouTube

"When you're a challenger, you have to think differently...Golf sometimes has been slow to adapt to new ideas, so anytime you're in the position of being a challenger, you have to be willing to break the mold."

Michael Vrska, Director of Innovation at Wilson Golf

Wilson Labs uses Altair's Virtual Wind Tunnel software to test aerodynamic performance empowering them to create revolutionary new products faster. The CFD suite includes AcuFieldView, a version of FieldView for Altair CFD users designed to support engineering driven organizations like Wilson Labs.

See FieldView in action as Wilson Labs explains how they use CFD to design sporting goods, and in particular golf clubs, as featured on the 7-part Golf Channel series DRIVER vs. DRIVER.

It is "...about the expertise of the team of engineers at Wilson Labs...a good idea for a golf club is merely a start. Its execution to a finished product requires technological horsepower."

by Golf Digest

Wilson, Wilson Golf and Wilson Labs are trademarks of Wilson Sporting Goods Co.
Golf Digest and Golf Channels are trademarks of their respective owners.

0 Comments

Live Webinar - Get to know FieldView 16.1

Send your data straight from FieldView to Youtube or PowerPoint with FieldView Update 16.1.

LIVE Webinar - Concluded

  • Tuesday, January 31, 2017
    2:00 pm EST (19:00 GMT)

  • Wednesday, February 1, 2017
    9:00 am EST (14:00 GMT)

Please join Yves-Marie Lefebvre, FieldView Product Chief for a live web event "Get to know FieldView 16.1"

We will demonstrate powerful new features including:

    • MP4 Video Export with Frame Rate Control: Straight from FieldView to YouTube and PowerPoint. Highest quality with reduced file size and maximum portability 
    • Logarithmic Colormap Scaling with Powers of 10 Annotation 
    • Improved Defined Views for easy Up Axis 
    • Surface Sampling for faster datasets comparison
    ​Plus dozens of helpful fixes and features as requested by our users. Including, new licensing options for today's HPC environments and enhanced security, Tkinter to enable Python GUI panels and VTK readers to support existing Catalyst extract workflows. 

    The 40 minute presentation will be followed by a live Q&A.


    Presenter: 
    Yves-Marie Lefebvre, FieldView Product Chief
    0 Comments

    Data Handling and Visualization for Large CFD Simulations

    Hear it for yourself!  

    LIVE Webinar
    October 6th, 2016
    Register now!

    Large scale CFD run on HPC systems generate huge volumes of results requiring a workflow that allows users to manage the large data and extract useful information efficiently. Workflows that do not keep pace with the rate of simulation prevent people from making the most of their simulations. The negative outcomes can include not sharing data effectively or perhaps even avoiding the use of HPC resources to begin with.

    We've made it simple to use the best resources available for your CFD. We'll show you how we are helping our customers achieve the promise of HPC for large CFD by reducing the data bottleneck and lowering costs. Cray and Intelligent Light invite you to join this live discussion and learn how some of the most productive CFD users in the world are working with their large data.

    We'll also discuss an industry collaboration aimed at improving the quality of CFD simulation of the physics of helicopter flight. The AIAA Hover Prediction Workshop uses data from multiple organizations submitting varied solutions for a helicopter in hover. The results are brought together on an shared HPC resource where standardized, automated post-processing is performed. Results are directly compared, reports are generated and extracts are delivered that can be shared, explored interactively and archived.

    Join Cray and Intelligent Light for a live discussion
    October 6th 11 am or 9 pm ET
    Event details and registration

    See what HPC Technology, Teamwork, and Trust can do for your CFD programs!

    Register now!

    0 Comments