Pointwise has released a new, updated version of its computational fluid dynamics (CFD) mesh generation software. Building on experiences gained through participation in CFD workshops, this new release includes the ability to customize the near-wall mesh for accurate and efficient boundary layer resolution.
What's new in Pointwise Version 18.1 R2 (23 August 2018):
"Our involvement in several American Institute of Aeronautics and Astronautics (AIAA) workshops on CFD has allowed us to learn more not only about how boundary layers should be resolved with the mesh but also about the flexibility our customers need in prescribing boundary layer regions," said Carolyn Woeber, Pointwise's manager of technical support. "Based on what we learned from CFD practitioners and solver authors, we added a feature called Growth Profiles for rapid setup of the boundary layer meshing attributes for our T-Rex (anisotropic tetrahedral extrusion) technique."
Growth Profiles provide a rapid way to compute the meshing attributes for resolving laminar and turbulent boundary layers. Given three simple flowfield parameters, boundary layer theory is used to compute and apply the appropriate growth rate schedule for T-Rex. Advanced users can also create a completely customized cell growth schedule to meet the precise needs of their application that is built from spacing values, the desired number of constant layers, the desired number of accelerated layers, and growth rate acceleration. Some of the technical details for this work can be found in the paper, A Qualitative Study on the Effects of Mesh Guideline Modification for Unstructured Mesh Generation of the NASA High Lift Common Research Model (HL-CRM), by Ms. Woeber and William T. Jones of NASA (AIAA paper no. 2018-3401).
Pointwise Version 18.1 R2 also includes several smaller features and defect corrections. These release notes are provided as a reference for the new features included in the latest version of Pointwise as well as any known issues that were resolved.
New Features
- An Average Spacing toolbox has been added to the toolbar.
- Setting the distribution to Tanh or Equal Spacing has been added to the toolbar.
- Custom T-Rex growth profiles are now available when using scripting.
- When a database surface is deleted, the domains that will lose associativity are now reported.
Resolved Issues
PW-18001 CGNS files with multiple base nodes can now be imported.
PW-20638 Importing a Parasolid file took longer than expected.
PW-20794 A curve shape was reversed after two nodes were merged if there were only two control points.
PW-21129 The Auto Merge tool was causing an unexpected exit.
PW-21132 Linear projection resulted in a poor T-Rex domain.
PW-21146 The extrusion algorithm has been improved for saddle points.
PW-21148 Degenerate surfaces can be forced to be splined during import/export.
PW-21155 The TecDescription mouse setting was not being remembered.
PW-21158 The glyph command pw::Display resetView was not working.
PW-21164 A parse error prevented some OpenFOAM files from being imported.
PW-21175 A database constrained unstructured domain had poor quality.
PW-21184 File, New with Reset options resulted in an error.
PW-21189 Right to Use acceptance was preventing silent/console installation on Windows
PW-21192 The Exodus plugin has been updated to successfully export larger meshes.
PW-21196 The Exodus plugin has been updated to successfully export larger meshes.
PW-21214 A CGNS file was importing correctly on Linux but not Windows.
PW-21216 The -usage option on Linux occasionally caused Pointwise to quit.
PW-21217 The -b option has been added to the -usage list.
PW-21220 Some Pointwise V17 files had database integrity issues when opened in V18.1.
PW-21232 A block with adapted domains and a source was not initializing.
PW-21233 SUGGAR++ 2.9.4 is now supported.
PW-21235 At the conclusion to 3D T-Rex, an incorrect aniso layer number was being reported in the messages window.
PW-21239 Glyph documentation incorrectly referred to Attributes as Actions.
PW-21259 Build Blocks opened in Selection mode if Apply, Cancel was used in the previous instance.
PW-21262 The CAE, Set Boundary Conditions panel was taking a long time to open for a large grid.
PW-21265 Two structured blocks were unable to be joined.
PW-21267 A normal extrusion exhibited more skewness than previous versions.
PW-21282 The Connector Join Angle was being ignored when creating structured domains on a model.
PW-21290 V18.1 was taking longer to split a connector than V18.0.
PW-21395 Splitting a periodic domain emptied one of the resulting halves.
About Pointwise. Pointwise is the choice for CFD meshing, covering all aspects of preprocessing from geometry model import to flow solver export. Available for Windows, Linux, and Mac, you can generate structured, unstructured, and hybrid meshes including our T-Rex technique for highly-automated generation of boundary layer resolving hybrid meshes.
About Pointwise, Inc. 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, overset and hybrid meshes; interfaces with CFD solvers such as ANSYS FLUENT, STAR-CCM+, OpenFOAM, and SU2 as well as many neutral formats, such as CGNS; runs on Windows, Linux, and Mac, and has a scripting language, Glyph, that can automate CFD meshing. Manufacturing firms and research organizations worldwide have relied on Pointwise as their complete CFD preprocessing solution since 1994.
Product: PointWise
Version: 18.1 R2 build 2018-08-13
Supported Architectures: x64
Website Home Page : Language: english
System Requirements: PC / Linux / MacOsx
Supported Operating Systems: Size: 1.3 Gb
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