Intelligent Light and FieldView

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ScienceNode: Wind Farm CFD by University of Wyoming and Intelligent Light

In Situ processing enables full wind farm simulation by reducing file size from 234TB to under 1TB

Excerpted from an article originally published on ScienceNode. Read the complete article

Researchers at the University of Wyoming (UW) and Intelligent Light are working hard to improve the efficiency of wind energy. One aspect they're currently investigating is the use of computational fluid dynamics (CFD) to simulate, predict, and improve the performance of wind farms.

CFD uses supercomputers to model the behavior of fluids such as air or water over moving surfaces. In this instance, UW professor of mechanical engineering Dimitri Mavriplis and Earl Duque at Intelligent Light turned to CFD to study how wind currents transform after coming into contact with a moving turbine's blades in the context of a complete wind farm.

Using the Cheyenne supercomputer at the National Center for Atmospheric Research (NCAR)-Wyoming Supercomputer Alliance, Duque and UW researchers Mavriplis, Michael Brazell and Andrew Kirby were able to model wind farms in unique ways. 

What really makes their research unique is the use of in-situ processing. Unlike traditional visualizations produced from stored data, in-situ processing means that visualizations and analysis can be created as a simulation takes place, without writing to disk.

In-situ processing eliminates file transfer bottlenecks, allows increased fidelity, and faster turnaround. 

"In-situ has helped reduce the amount of 3D data that we need to store. Just the restart files take 10 TB on a 12-hour run. Automation has gone way up; we have scripts that go straight from simulation to animation. Also, in-situ has helped with debugging—I don't need to pull down 3D data, and I can just use slices, save those to a FieldView XDB file, and then view that on my local machine."

Michael Brazell, University of Wyoming

Excerpts trom an article was originally published on ScienceNode.org. Read the original article.

CFD images courtesy of Prof. Dimitry Mavripilis and Andrew Kirby, University of Wyoming, an Intelligent Light University Partner.
 
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Advance your CFD - IL at SC17

Get the latest info on high performance CFD workflows and In Situ processing using HPC from sessions in the technical conference and on the exhibit floor in booth #807.

  • Delivered: VisIt to Cinema - Scalable Knowledge Extraction for Industrial CFD
  • VisIt Update: Ongoing performance enhancements and new features
  • HPC Powers Wind Energy: 10TB of data made interactive with XDBs and In Situ
  • We're moving HPC-powered CFD forward with In Situ

    ISAV2017: In Situ Infrastructures for Enabling Extreme-Scale Analysis and Visualization

    SC17 Workshop
    Sunday, Nov. 12th, 9:00-5:30 pm room 605

    The considerable interest in the HPC community regarding in situ analysis and visualization is driven by the desire to save I/O costs and time, increase accuracy with fine sampling of transient analysis and full utilization of HPC resources. As a member of the ISAV Program Committee, Intelligent Light will bring real world experience from our work on ultra scale simulations.

    Intelligent Light is a co-organizer with a team including four US National Laboratories. We also participate on the program committee and have a role in reviewing submissions for this full day workshop.

    Tutorial: In Situ Analysis and Visualization with SENSEI
    Presenters: Bethel, Bauer, Whitlock, Wolf, Loring, Rizzi
    Monday, Nov.13th, 8:30 am - 12:00 pm room 355-D

    The SENSEI community in situ data interface is an API that promotes code portability and reusability. From the simulation view, a developer can instrument their code with the SENSEI API and then make use of any number of in situ infrastructures. From the methods view, a developer can write an in situ method using the SENSEI API, then expect it to run in any number of in situ infrastructures. Attendees will learn the fundamentals of in situ data analysis and visualization leveraging this generic interface.

    click to enlarge

    Spend time with our experts

    Come by booth #807 or request a meeting, ask questions and explore how we can help you advance your CFD. Learn more about the ways IL is advancing CFD with HPC-powered innovation.

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    NVIDIA and Intelligent Light Pushing Ahead with In Situ Rendering on Servers

    NVIDA developer blog has a feature about server side rendering featuring our work with customers such as Daimler AG.
    "Intelligent Light and Daimler AG use server-based pipelines to analyze the results of their large-scale vehicle simulations. To validate thermal operating bounds when designing new vehicles, Intelligent Light's FieldView can be used to visualize the results of highly-parallel simulations. Sifting through the 15 terabytes of data from this simulation is much more quickly done on the server that ran the simulation, after which the salient time steps can be extracted and used to visually communicate results.​"
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    Visions of Exascale CFD: ASME Fluids Engineering Division Summer Meeting

    IL Founder & General Manager, Steve Legensky, will speak at the ASME Fluids Engineering Division Summer Meeting​ at the Hilton Waikoloa Village, Waikoloa, Hawaii

    Steve M. Legensky, Founder and General Manager, Intelligent Light

    Visions of Exascale CFD

    Over the past thirty years, computational simulation of fluid dynamics has made huge strides in meshing of complex geometries, computational efficiency and most importantly, greater fidelity in physics models.Current trends include greater adoption of unsteady methods via LES, higher order methods and alternatives to classical CFD such as Lattice Boltzmann methods.However, the majority of engineering applications remain constrained by computational and storage resources as well as schedule and time pressure.The Department of Energy's Exascale Computing Project (ECP) offers the capacity for scale, fidelity and perhaps most interesting, non-deterministic engineering (NDE) in which variations in boundary conditions, discretization and models can more realistically predict the behavior of complex aerodynamic, propulsion or power generation systems.

    Intelligent Light is participating in research activities aimed at managing the massive data flows resulting from ensembles of unsteady CFD calculations and implementing tools to support engineering use of uncertainty quantification techniques.Through the lens of post-processing and data analysis, we have gained a unique perspective on research and engineering use of CFD from the late 1980's through today.The talk will touch on this history but have a primary focus on state-of-the-art petascale CFD in aerospace, combustion and wind energy and survey the challenges that ECP is intended to address.

    To request a meeting during the conference, please send email to events@ilight.com.

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    Workshop: Extract-based and In Situ Methods for HPC Enabled CFD

    To be held August 3, 2017, in conjunction with the ASME Fluids Engineering Division Summer Meeting​ at the Hilton Waikoloa Village, Waikoloa, Hawaii

    Workshop Objectives

    This workshop will assess the state-of-the-art in CFD Visualization and Post-Processing in High Performance Computing (HPC) environments. Specifically the issues of data transfer from remote HPC resources, a comparison of remote graphics vs. extract methods, and the trend toward in situ methods. Real world examples of industrial CFD workflows will be presented that offer a path to greater fidelity and faster throughput enabling an increased use of unsteady simulation.

    Presenters

    Prof. Kozo Fujii, Tokyo University of Science/ ISAS-JAXA 
    Revisit the Role of Research Graphics in HPC Post Processing

    Yves-Marie Lefebvre, FieldView Product Chief, Intelligent Light
    Unblocking Data Bottlenecks in HPC CFD with Extract-based Workflows

    Steve Legensky, Founder and General Manager, Intelligent Light
    In Situ: Real and in Production

    Read presentation abstracts

    Who should attend

    Researchers and practitioners in aeroacoustics, combustion, LES and large scale CFD and CFD solver code technologists.

    Thursday, August 3, 2017
    Lunch for all FEDSM participants sponsored by Intelligent Light
    Workshop from 1:30 to 4 PM

    This event is free, but seating is limited and advanced registration is required.

    To register, please send email to events@ilight.com with your full contact information and the number of people in your party. Location details will be provided with your registration confirmation.

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