Tag: Computational Fluid Dynamics (CFD)
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09-27-2018 | Olivier Bauchau: Solutions of Boundary Value and Periodic Problems for Flexible Multibody Dynamics Systems
107th NIA CFD Seminar Topic: Solutions of Boundary Value and Periodic Problems for Flexible Multibody Dynamics Systems Date: Thursday, September 27, 2018 Time: 11am-noon (EDT) Room: NIA, Rm101 Speaker: Olivier A. Bauchau Abstract: Traditionally, the solution of flexible multibody dynamics problems is obtained via time marching. Many problems, however, are formulated as boundary value or periodic problems. The dynamic response of…
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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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09-18-2018 | 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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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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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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06-20-2018 | 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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05-02-2018 | Brody Bassett: Meshless Methods for the Neutron Transport Equation
Title: 101st NIA CFD Seminar: Meshless Methods for the Neutron Transport Equation Speaker: Brody Bassett, PhD Candidate, University of Michigan Date: Wednesday, May 2, 2018 Location: NIA, Room 137 Time: 10:00am-11:00am Link: https://bit.ly/2JiIsdC Abstract: Mesh-based methods for the numerical solution of partial differential equations (PDEs) require the division of the problem domain into non-overlapping, contiguous subdomains…
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04-10-2018 | Hiroaki Nishikawa: Uses of Zero and Negative Volume Elements for Node-Center Edge-Based Discretization
100th NIA CFD Seminar: Uses of Zero and Negative Volume Elements for Node-Centered Edge-Based Discretization Date: Tuesday, April 10, 2018 Time: 11am-noon (EST) Room: NIA, Rm101 Speaker: Hiroaki Nishikawa, Associate Research Fellow, NIA Link: http://hiroakinishikawa.com/niacfds RSVP Requested: reply to Mary Catherine Bunde at mary.bunde@nianet.org Abstract: This talk will discuss how zero and negative volume elements…
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02-20-2018 | Li Wang: High-Fidelity Multidisciplinary Sensitivity Analysis and Design Optimization for Rotorcraft Applications
Topic: High-fidelity Multidisciplinary Sensitivity Analysis and Design Optimization for Rotorcraft Applications Date: Tuesday, February 20, 2018 Time: 11am-noon (EST) Room: NIA, Rm137 Speaker: Li Wang Media Site Link:Â http://nia-mediasite.nianet.org/NIAMediasite100/Play/51ae515210444e4f8f7579b19a3e03d71d?catalog=fe540232-73ef-4460-8462-0d8a1a25ea58 Abstract: This talk will present a multidisciplinary sensitivity analysis approach that has been developed and applied to rotorcraft simulations involving tightly coupled high-fidelity computational fluid dynamics and…
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01-20-2018 | Jialin Lou: Development and Implementation of Reconstructed Discontinuous Galerkin Methods for Computational Fluid Dynamics on GPUs
Topic: 97th NIA CFD Seminar: Development and Implementation of Reconstructed Discontinuous Galerkin Methods for Computational Fluid Dynamics on GPUs Date: Tuesday, January 30, 2018 Time: 11am-noon (EST) Room: NIA, Rm137 Speaker: Jialin Lou Weblink: http://nia-mediasite.nianet.org/NIAMediasite100/Play/32a7278833cb4c34abdc4f3336979d7e1d?catalog=fe540232-73ef-4460-8462-0d8a1a25ea58 Abstract: The objective of the effort presented in this work is to port an unstructured CFD solver, reconstructed discontinuous Galerkin…