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Pointwise Events at AIAA Aviation Forum 2017

This year's AIAA Aviation Forum and Exposition will be held at the Sheraton Denver Downtown Hotel in Denver, Colorado. Pointwise will have staff at the conference presenting papers in technical sessions, demonstrating software and answering technical questions in the exhibit hall, and participating in several of the workshops. We hope to see you at any and all of these activities.

Attend a Pointwise Presentation

Reducing the Computational Cost of Viscous Mesh Adaptation

Zach Davis; Travis J. Carrigan; Nick Wyman; Matthew McMullen

This presentation will compare solutions for an ONERA M6 wing from two different anisotropic output-based mesh adaptation approaches. In one case, an a priori boundary layer resolved volume mesh is created using Pointwise, and a viscous anisotropic output-based grid adapted computation is run using NASA’s FUN3D node and density-based finite volume solver. The second approach starts with a less computationally expensive inviscid output-based grid adapted solution using Cart3D. The adapted grid that results is transferred back into Pointwise as point sources that include mesh sizing information. Both viscous surface and volume grids are then re-created using mesh refinement derived from these point sources. Lastly, output-based grid adapted computations are run using this pre-adapted mesh and FUN3D.

Date and Time

Monday, 5 June 2017
11:30 a.m.-noon

Location

Room: Tower Court B
Session: CFD-03. Meshing I


Resulting adapted mesh and pressure coefficient (Cp) contours for flow around an ONERA M6 wing.

Node Creation for Isotropic Tetrahedral Mesh Generation

Steve L. Karman; Nick Wyman

The presentation will demonstrate a novel node creation technique being developed for Pointwise that results in high quality isotropic tetrahedral meshes. It focuses on a physics-based node creation method, which generates smooth node distributions for a Delaunay isotropic tetrahedral mesh program. The method automatically adds and deletes nodes to meet the spacing field defined by the input boundary triangulation. Adaptation is possible by defining fixed source nodes that interact with the interior nodes in the same physics simulation. Several example cases demonstrate the improved mesh quality resulting from this node creation scheme.

Date and Time

Tuesday, 6 June 2017
9:30 a.m.-10 a.m.

Location

Room: Tower Court B
Session: CFD-10. Meshing II

Mesh Generation Challenges: A Commercial Software Perspective

Steve L. Karman; Nick Wyman; John P. Steinbrenner

The presentation will review the short-term and long-term challenges in mesh generation, and the approach Pointwise is taking to address them. Challenges in Computational Fluid Dynamics (CFD) were aptly described in the NASA CFD Vision 2030 Study. To quote the executive summary; “Mesh generation and adaptivity continue to be significant bottlenecks in the CFD workflow, and very little government investment has been targeted in these areas”. This paper will present the research and development activities at Pointwise that attempt to address some of the findings from the NASA report.

Date and Time

Wednesday 7 June 2017
11:30 a.m.-noon

Location

Room: Windows
Session: CFD-15. Special Session: Capabilities and Challenges In CFD I


Coarse resolution, degree 3, surface meshes near the gap between the inboard and outboard flaps. Image made in FieldView.

For the AIAA full presentation schedule, go to AIAA Aviation – Technical Program Agenda.

Workshops

1st Geometry and Mesh Generation Workshop

Pointwise has been heavily involved in launching this two-day AIAA workshop on meshing and geometry (GMGW-1). Focus will be on assessing the current state-of-the-art in geometry preprocessing and mesh generation technology software, as well as identifying areas that need improvement (performance, accuracy, applicability). It will also provide a foundation for documenting best practices in the current technology.

This workshop is being offered in conjunction with the 3rd AIAA CFD High Lift Prediction Workshop (HiLiftPW-3), which serves as the model for GMGW-1. The two workshops will share opening and closing sessions.

The workshop's test case is a simplified version of the NASA's High Lift Common Research Model (HL-CRM) being used for the High Lift Workshop. Participants will be asked to collect and report data about their experience meshing the HL-CRM geometry.

Date and Time

3-4 June 2017
8 a.m.–5 p.m.

Location

Governor's Square 12

Website

www.pointwise.com/gmgw

Say Hello to the Pointwise Staff at Booth #301

Come by the Pointwise booth (#301) anytime during exhibit hours to meet some of the staff from Pointwise.

Pointwise, Inc.
Location

Booth #301

Exhibit Hours:

Tuesday, 6 June 20171–4:30 p.m.
6:30–8 p.m. (reception)
Wednesday, 7 June 8:45 a.m.–4 p.m.
Thursday, 8 June8:45 a.m.–2 p.m.