OpenVSP Workshop 2015

OpenVSP Workshop 2015

We are pleased to announce that the 2015 OpenVSP Workshop will be hosted on the East Coast this year.

Please save the dates of August 11-13. We will be holding the workshop at the National Institute of Aerospace in Hampton, VA.

As before, the OpenVSP Workshop consists of presentations and tutorials by VSP developers and power users. Topics range from introductory to advanced model building, reports on cutting edge development, and work that real users are accomplishing with OpenVSP.

Given the major redesign of Version 3.x.x and the influx of new users, we will focus the first day (8/11) on beginners and those who would like a thorough run through the entire interactive interface and explanation of the parameters. We will also present what we have … Read more

OpenVSP 3.0.4 Released

OpenVSP Version 3.0.4

OpenVSP 3.0.4 is mostly a bug fix release. This should fix a bunch of issues with DegenGeom in preparation for things to come. Also fixed are a bunch of problems with 6-series and file airfoil types. Anyone using v3 should certainly update.

Bug fixes in this release include:

  • Six series leading edge creep
  • Crash for very thin six series airfoils
  • Fix problem copy/pasting file airfoils
  • Update overall wing aspect ratio display
  • Don’t deselect Geom when executing DegenGeom
  • Fix sign assumption in z camber of DegenGeom for reflex or inverted foil
  • Make export file names match primary file name
  • Save Vehicle level parameters including file save options
  • Fix wing updating when total parameters changed
  • Enable extracting point cloud from slices
  • Write
  • Read more

OpenVSP 3.0.3 Released

OpenVSP Version 3.0.3

OpenVSP 3.0.3 includes a handful of bug fixes and small improvements to the 3.0 series.  Versions 3.0.1 and 3.0.2 included quick fixes for urgent last minute bugs — but they did not include a complete release note.

API Users Note:
The calling arguments in four functions were changed: CutXSec, CopyXSec, PasteXSec, and InsertXSec.  See Wiki for details.

Improvements since 3.0.0 include:

  • Extend API to allow changing Wing Driver Groups
  • Add VSPExit to API to return exit value to host batch environment
  • Add DegenGeom to API / Scripting
  • API now references Cut/Copy/Past/Insert XSec to Geom not XSecSurf

Bug fixes since 3.0.0 include:

  • Fix crash caused by dynamic Parm GUIs and undo-friendly sliders (3.0.1)
  • Fix crash when mixing 4-digit airf
  • Read more

OpenVSP 3.0.0 Released!

Version 3.0.0 compared to version 2.3.0 includes too many changes and improvements to list. OpenVSP v3 is a near total re-write that has been three years in the works. Many thanks to the entire core OpenVSP team. This is what you’ve all been waiting for!

Since 2.9.7, version 3.0.0 has a handful of small fixes and features, and one major new feature that has long been in development.

Improvements include:

  • Fit Model tool to perform least squares fit of VSP model to points
  • Point Cloud Geoms to support Fit Model
  • Import of point clouds as well as conversion from MeshGeom
  • Improved Undo, where slider actions are not recorded
  • SubSurface support in API
  • Improvements to advanced parameter linking.
  • Read more

OpenVSP 2.3.0 Released

Version 2.3.0 contains one significant feature and a small bug fix. Version 2.3.0 is likely the last 2.X feature release for VSP. We will continue making 2.3.Y bug fix releases for a long time.

For some time, almost all developer effort has been focused on the pending 3.X project. VSP v3 is a near total rewrite keeping everything you love about VSP, but ushering in new features galore and a more maintainable code base. We hope to release a not-for-production-use alpha version of v3 for users to begin testing soon.

Fixes/features in this release:

  • Add ability to model outer domain boundary in CFD Mesh.
  • Match multi-body edge shares in CFD Mesh. (Thanks Sriram R.)

You can now generate a CFD Mesh including the outer boundary. Some volume grid generators need to start with a full… Read more

OpenVSP 2.2.5 Released

Version 2.2.5 contains a collection of bug fixes and small features. Some of the features look like bug fixes — and some of the fixes look like small features.

Fixes/features in this release:

  • Save CFD export options.
  • Automatically add *.vsp extension when saving.
  • Add *.ram files to file-open dialog.
  • Write propellers to XSec *.hrm files.
  • Fixed PovRay *.inc file bug.
  • Fix FEA elements not getting written.
  • Fix 64-bit GLFont support and embed font in executable.
  • Fix parameter linking and design files for propeller.
  • Read more

OpenVSP 2.2.4 Released

Version 2.2.4 contains a collection of bug fixes that improve the CFD mesher. Various users have run into these problems, so if you use CFDMesh, you should certainly upgrade.

Bug fixes in this release:

  • Guarantee attachment of wakes to constructing edge
  • Relax tolerance to better match wakes down body splits
  • Rewrite curve tessellation integration for quality in extreme cases
  • Introduce curve split sources for mesh quality near intersections
  • Size curve distance table to match underlying topology

The wake changes should help guarantee mesh topology when wakes are turned on. There were certain cases that could arise where a wake would not properly attach to the generating trailing edge, or the edge of a body that aligned with the wake. Both of these situations should be … Read more

2013 OpenVSP Workshop Announcement & Call for Participation

The 2013 OpenVSP Workshop will be held 7-9 August in San Luis Obispo California. There is a $99 registration fee.

The agenda will include presentations and tutorials. Topics will range from introductory to advanced modeling techniques, connections between VSP and analysis tools, and updates on recent/ongoing developments in VSP.

Please email Rob McDonald if you would like to present at the workshop. Please include a title or short description of what you would like to present. We can’t guarantee to accomodate everyone, but we are trying to construct a comprehensive workshop.

The workshop information web site is online and will be updated as the agenda is set.

The workshop registration web site is also online and ready to receive your registration.… Read more

OpenVSP 2.2.3 Released

Version 2.2.3 contains a triplet of small bug fixes that have bitten some users. I have been putting these off waiting for an upcoming feature release, but now seems to be the time to get these out there.

Bug fixes in this release:

  • Threaded version check
  • Fix CG contribution of point mass components
  • Fix CFDMesh half models when a surface is actually cut

Placing the version check in its own thread allows VSP execution to continue during the version check. This is significant for situations where the computer has internet connectivity, but the VSP web server is experiencing problems. The HTTP library used by VSP does not let you change the timeout from 60 seconds, so in these situations, VSP paused for 60 seconds on startup.

The CG contribution of point mass components was cal… Read more

OpenVSP 2.2.2 Released

Version 2.2.2 has been a long time coming. I have been waiting on a few features to make a 2.3.0 release, but finally decided it was better to get these fixes out sooner than later.

The mesh growth limiting step of CFDMesh ‘Build Target Mesh’ has been totally re-written. This new version should be vastly faster for just about anyone out there. The new BTM algorithm follows the surface topology rather than doing a full spatial search. For the rare cases where a full spatial search is still required, there is an optional flag to enable it. Even that mode should still be much faster than before.

Bug fixes in this release:

  • Don’t close already closed file in readVspAirfoil (Linux crash)
  • Fix MS_Wing chord update on scale
  • Fix warnings on various
  • Read more