Tag: 2018 Seminars
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09-24-2018 | Antonio Di Giovanni: DNS of Roughness-Induced Transition in the Boundary Layer of a Hypersonic Spherical Forebody
106th NIA CFD Seminar: DNS of Roughness-Induced Transition in the Boundary Layer of a Hypersonic Spherical Forebody Date: Monday, September 24, 2018 Time: 11am-noon (EDT) Room: NIA, Rm 137 Speaker: Antonio Di Giovanni Abstract: The laminar-turbulent transition of the boundary layer on spherical forebodies at hypersonic speeds is a fundamental and yet not fully understood problem. Laminar-turbulent transition significantly impacts on…
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09-19-2018 | Otis Earl Messer II: Application Readiness for Modern HPC: Lessons Learned and Some Cautionary Tales
Topic: HPCI Speaker Series: “Application Readiness for Modern HPC: Lessons Learned and Some Cautionary Tales” Speaker: Otis Earl Messer II, NIA Visitor Date: Wednesday, September 19, 2018 Location: NASA/LaRC, Building 2102, Reid 1 Time: 10:00am Abstract: The Center for Application Acceleration Readiness (CAAR) is a collection of science teams, vendor partners, and tool developers that have been brought together by the Oak Ridge…
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09-18-2018 | Juliette Pardue: Three-Dimensional Prism-Dominant Mesh Generation for Viscous Flows Around Surface Slope Discontinuities
105th NIA CFD Seminar: Three-Dimensional Prism-Dominant Mesh Generation for Viscous Flows Around Surface Slope Discontinuities Date: Tuesday, September 18, 2018 Time: 11am-noon (EDT) Room: NIA, Rm137 Speaker: Juliette Pardue Weblink: http://hiroakinishikawa.com/niacfds Abstract: The NASA CFD Vision 2030 Study has identified mesh generation to be a significant bottleneck in the CFD pipeline. Human intervention is often required due to a lack of…
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09-06-2018 | Nabil Kherraf: A Formalization of Analytical Solutions for Cubic Polynomials in PVS
Title: A Formalization of Analytical Solutions for Cubic Polynomials in PVS Speaker: Nabil Kherraf, Ecole Normale Superieure de Lyon, NIA Visitor Location: NASA/LaRC, B1230 R264A Time: 10:30 AM – 12:00 PM September 6, 2018 Sponsor: Cesar Munoz, NASA/LaRC Abstract: Finding roots of cubic and quartic polynomials plays a fundamental role in separation assurance systems where aircraft trajectories are represented by…
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08-22-2018 | Alfonso Callejo: Sensitivity Analysis of Flexible Multibody Systems with Application to Rotor Dynamics
Topic: 104th NIA CFD Seminar: Sensitivity Analysis of Flexible Multibody Systems with Application to Rotor Dynamics Speaker: Alfonso Callejo Date: Wednesday, August 22, 2018 Time: 11am-noon (EDT) Room: NIA, Rm141 Weblink: http://hiroakinishikawa.com/niacfds Abstract: The combination of analysis and optimization methods in mechanical engineering, also known as design optimization, has great potential in product development. In turn, robust sensitivity analyses that provide reliable…
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08-08-2018 | Rick Sickenberger: Optics-Based Tip-Path Plane Tracking System
Title: Optics-Based Tip-Path Plane Tracking System Speaker: Rick Sickenberger Date: Wednesday, August 8, 2018 Location: NIA, Room 137 Time: 10:00am – 11:00am Abstract: The development of custom embedded systems and other hardware to measure dynamic, performance, and acoustic data for quantifying the aeroacoustic properties of aircraft and developing flight path management techniques to reduce ground annoyance and far-field detection will…
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07-24-2018 | Prakash Shrestha: Study of High-Speed Transition due to Roughness Elements
Topic: 103rd NIA CFD Seminar: Study of High-Speed Transition due to Roughness Elements Speaker: Prakash Shrestha Date: Tuesday, July 24, 2018 Time: 11am-noon (EDT) Room: NIA, Rm137 Weblink: http://hiroakinishikawa.com/niacfds Abstract: Transitional hypersonic boundary layers due to diamond-shaped and cylindrical roughness elements (passive tripping) are studied using direct numerical simulations (DNS). A low Reynolds number experiment, consisting of an array of diamond-shaped roughness…
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06-13-2018 | Peter Huthwaite: Implementing the Finite Element Method on Graphics Cards for Ultrasound Simulations
Title: HPCI Seminar Series: FEM with GPUs, with application to NDE: “Implementing the Finite Element Method on Graphics Cards for Ultrasound Simulations” Speaker: Peter Huthwaite, Senior Lecturer, Mechanical Engineering, Imperial College London Date: Friday, July 13, 2018 Time: 9:00am Location: NASA/LaRC, Bldg. 2102, Room 114/115 Host: Cara Leckey, NASA/LaRC Abstract: The finite element method is…
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06-20-2018 | Asitav Mishra: A GPU Accelerated Adjoint Solver for Shape Optimization
102nd NIA CFD Seminar: A GPU Accelerated Adjoint Solver for Shape Optimization Date: Tuesday, June 20, 2018 Time: 11am-Noon (EDT) Room: NIA, Rm 137 Speaker: Asitav Mishra, Assistant Research Scientist, University of Maryland Abstract: A graphics processing units (GPUs) accelerated adjoint-based optimization platform is proposed in this paper. Significant speed up gains and strong linear…
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06-04-2018 | John Bellardo: CubeSat and PolySat Research Laboratories
Title: CubSat/PolySat Seminar Speaker: Dr. John Bellardo, Associate Professor, Computer Science, California Polytechnic State University (Cal Poly) – San Luis Obispo Date: Monday, June 4, 2018 Time: 2:00pm-3:00pm Location: NASA/LaRC, IESB 2102, Pearl Young Theater Host: NASA/LaRC Science Directorate’s Climate Science Branch Bio: Dr. Bellardo is one of two faculty advisors for the school’s CubeSat and…