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Meshing Considerations for Adjoint-based Mesh Adaptation
Posted Wed January 20, 2016 @04:16PM
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Announcements Pointwise will premiere a Let’s Talk Meshing webcast entitled, Meshing Considerations for Adjoint-based Mesh Adaptation on 27 January at 10 a.m. CST (GMAT -6). Afterwards, from 11 a.m. - noon, our Pointwise engineer who created the grid will be available online to answer your questions.

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Improvements in computational power, accessibility to high performance computing (HPC) resources, and open-source tools have recently contributed to the prevalence of computational fluid dynamics (CFD) and its widespread adoption across several diverse industries. CFD simulations that leverage sophisticated physical models are regularly used throughout the design cycle to help shape and refine the overall final configuration of a product.

However, ensuring that the computed solutions are sufficiently accurate with respect to the physical system being modeled is often left to the practitioner to determine. Even for relatively standard simulations, questions often arise as to the robustness with which CFD methods can accurately compute outputs of interest. Numerical errors can often be directly traced to the configuration of the underlying mesh and orientation of individual and neighboring cells used in calculating a solution. Error estimation and adaptive methods are critical ingredients to improve the reliability of computational simulations efficiently and reliably.

In this video, we demonstrate some recommended best meshing practices in Pointwise and demonstrate adjoint-based mesh adaptation using NASA Langley’s FUN3D solver to accurately compute the flow over an ONERA M6 wing.

This Let’s Talk Meshing webcast will demonstrate how to:

  • Seamlessly import IGES files into Pointwise
  • Create Coons patches to easily close gaps in analysis models
  • Utilize solid modeling techniques to quickly organize models into representative analysis surfaces
  • Quickly generate farfield and symmetry boundary domains using Pointwise’s built-in geometry creation tools
  • Generate anisotropic surface and volume grids using T-Rex (anisotropic tetrahedral extrusion)
  • Setup mesh and input files necessary for mesh adaptation using FUN3D

Details on the webcast and Q&A participation can be found at www.pointwise.com/webcasts. The event will be hosted by Zach Davis, a senior engineer on the sales and marketing team.

Let's Talk Meshing events encompass various communication channels, including interactive forums, webinars, and webcasts, that inform and equip Pointwise users. To find out about our current events or to peruse recordings from past events, please go to www.pointwise.com/LetsTalkMeshing.

Pointwise, Inc. is solving the top problem facing computational fluid dynamics (CFD) today – reliably generating high-fidelity meshes. The company’s Pointwise software generates structured, unstructured and hybrid meshes; interfaces with CFD solvers, such as ANSYS Fluent®, STAR-CCM+®, ANSYS CFX®, OpenFOAM, and SU2 as well as many neutral formats, such as CGNS; runs on Windows (Intel and AMD), Linux (Intel and AMD), and Mac, and has a scripting language, Glyph, that can automate CFD meshing. Large manufacturing firms and research organizations worldwide rely on Pointwise as their complete CFD preprocessing solution.

Pointwise is a registered trademark and Pointwise Glyph, T-Rex and Let's Talk Meshing are trademarks of Pointwise, Inc. All other trademarks are property of their respective owner.

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  • Meshing Considerations for Adjoint-based Mesh Adaptation
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