Latest News

Access to Papers on GridPro

Published papers on different areas of CFD applications and Papers on GridPro are available for download.

To access these links please go to GridPro Papers.

CadFix 7.1 for GridPro available

ITI TranscenData's latest version, CADfix 7.1 for GridPro is available at our download section.It comes with a host of enhancements and new functionality, CADfix 7.1 further strengthens TranscenData’s reputation as an outstanding solutions provider for engineering data exchange and repair.

To download, please click here

GridPro Version 4.5 and GridPro MacOSX versions - March 2007

GridPro version 4.5 is now available to download. Customers with current maintenance and annual license customers can request download instruction for this version of GridPro. The main additions in version 4.5 are

1. Shortcut keys for selecting groups of topology corners. - "a" and "g". The "a" key will allow you to select topology sheets by simply clicking on a link while holding the "a" key down in your keyboard. The use of this key has a smart and intutive feel. This will save enormous time in selection topology corners in very complex block frames. The "g" key is a shortcut key for selecting groups and works just like the "s" key. You can select topology corners one by one, or a group at once by dragging a box while keeping the "g" key presses. The "G" (capital g) deselects groups and works the same way.

2. A new Npatches utility. A new utility for improved projection of grid on coarse triangulated surfaces. This utility is used when the given surface is coarser than the GridPro generated surface grid. We still recommend that a faceted surface should be denser than the surface grid, but in case you are not able to obtain a dense facetted surface, this utility will give you a workaround by interpolating between the coarser surface facets.

3.  GridPro Version 4.5 is supported in Apple Macintosh computers. There are three versions for MacOSX. - for the Intel Core2Duo architecture, and the PowerPC architecture, and 64 bit PowerPC-G5 version. 64 bit Windows versions for AMD-Opteron processors are also available. We will also be putting up 64bit Linux versions for the Opteron processor soon.

4. Ability to selectively assign topology corners to grid positions. Previously, "adjust topology position to grid" will reposition the entire topology. This is done only to current group now. If no current group is selected, it will reposition the entire group.

GridPro newsletter July 2005

The latest GridPro newsletter contains stories of GridPro used in design cycles as well information regarding the use of the latest GridPro features for use geometry modelling - variational surface creation and control net surface creation. You can download the newsletter here.

New Updates to the medical grid gallery - Feb 1, 2005

Check out our new updates to the medical grid gallery.

GridPro Short Courses for the year 2005 - Jan 24, 2005

PDC has teamed with Lockheed Martin Technical Operations (LMTO) to bring a set of short courses in Sunnyvale, California. The short course is for four days and comes with a two month trial license of GridPro. It offers an ideal way to begin learning GridPro and become productive as it starts out with the basics and is filled with tips and techniques for handling grid generation cases for very complex geometries. You are also encouraged to bring your own case along.

GridPro Short Course Dates
Place: LMTO, Sunnyvale, CA
Dates:

• FEB 7-10, 2005
• APR 4-7, 2005
• MAY 23-26, 2005
• AUG 1-4, 2005
• SEP 26-29, 2005
• NOV 7-10, 2005

More Advanced and custom designed short courses tailored to generating grids for particular configurations are given onsite or at our main office in White plains, New York. For more information about this, please contact us.

GridPro Newsletter and Brochure are available for download - Jan 24, 2005

Inside GridPro's Newsletter for Jan 2005:

1. Huygens Space Probe to unmask Titan
2. How UVA is using GridPro to model heart pumps
3. GridPro in Bio-Medical simulations, New features in GridPro version 4.3 and 4.4
4. GridPro short courses and more news

To get the full newsletter, please click here

Also find out more about GridPro in our new brochure

Version 4.4 BETA now available- Dec 3, 2004

Version 4.4 of GridPro is now available for download as a beta version. We have added a number of new capabilities in this version to give more control and automation. Some of the new features are listed below.

1. Ability to make arbitrary space curves in three dimesions (by specifying the starting and ending points and the corresponding tangents at the point).
2. Ability to combine 4 topology or linear curves into a Quad or linear surface using Transfinite interpolation.
3. Ability to combine 6 linear surfaces into a single block grid using Transfinite interpolation. You can also steal sheets from an existing grid and use it as a linear surface.
4. A new variational method for automatically creating surfaces from a string of corners and the corresponding tangents at those points. This has also been integrated into the traditional "i0 - 1" approach to further enhance the capabilities of the "i0" & "1" buttons.
5. New shortcut key functionality for regional link and surface assignments. The "e" key has the same functionality as the "r-lk" and the "s" key can be used for surface "+" and "S"(capital s key) used for surface "-".
6. "Mildclu" is available with version 4.4 beta. This can be used for more control in places where the traditional "clu" does not give a desirable distribution.

Version 4.4 Beta is currently available for Windows and Linux platforms.

CadFix 6.0 and SP1 upgrades available for download - Oct 28, 2004

CadFix 6.0, the latest version of CadFix for GridPro, is available for download from the GridPro download section CadFix 6.0 Service Pack 1 is also available for download.
SP1 contains a new utility in CadFix called the mesh manager which lets users control the export to GridPro in great detail.

Version 4.3 Production Version Now Available - June 9, 2004

Version 4.3 is now available for download from the GridPro download section. Customers who have current maintanance contracts and who wish to upgrade can do so by clicking here and logging in. Please call us obtain a username and password. Version 4.3 offers a number of new features. Nest, a feature introduced in version 4.2.1, has been made very easy to use and more automatic. A new feature called cut in mini-cad intersects two triangulated surfaces and produces a set of surfaces which can be merged together using merge. This acts as a boolean operations for intersecting and merging triangulated surfaces .

Version 4.3 is available for Windows, Linux, HP 11, HP10.20, and SGI Irix 6.5 32 bit and 64 bit systems, SGI Itanium2 platforms running Linux. If you need version 4.3 on IBM, SUN, DEC or other systems, please make a request.

Version 4.3 Beta ready for download - Mar 31, 2004

Binaries for Version 4.3 Beta version has been put up on the GridPro download section. Users who wish to download it should send a request to support@gridpro1.com to obtain authorization to download it. 4.3 beta has TRIM, Smooth, Quality check dialog, Auto-Split, and many more enhancements.

GridPro Version 4.3 Update - Mar 12, 2004

We have been testing and developing GridPro version 4.3. GridPro version 4.3 contains a number of productivity enhancing features. We will be releasing a Beta version of 4.3 on SGI, Linux and Windows. Current users may request a Beta for their operating systems, and we will try our best to comply. Click here for an updated list of features which will be released on version 4.3 Beta.

1. TRIM - An automatic topology generation utility which can create and accelerate the development of topology for many cases. Now, you can use Cartesian, cylindrical or any curvilinear initial structure and TRIM will automatically carve out a topology for the current surfaces and wrap and assign the corners to the surfaces. It all happens in a couple of clicks. An additional option for automatic un-inserting has been provided to reduce the number of blocks which will be created using TRIM.
2. Auto-Split - An automatic feature based splitting option. Applied in conjunction with Split and Merge, the user can quickly split up a triangular faceted surface to a number of surfaces of his choice based on the feature lines.
3. KUBRIX - Kubrix can be used as an alternative topology creation/ acceleration tool. Like TRIM, Kubrix is completely automatic once the surface is given. Unlike TRIM, Kubrix produces coarser topology which looks more hand-crafted than TRIM. Kubrix will require a separate license and will come at an additional cost. GridPro can now launch kubrix and automatically load in the topology produced by kubrix.
4. Smooth - A utility to smooth and enhance/reconstruct STL type triangular faceted data. This can be launched from mini-cad.
5. Other improvements include, a quality check and load bad blocks dialog box can be used a grid diagnostic tool, the ability to synchronize topology positions to Grid option, the ability to change topology corner positions to match the blocking structure of the current grid, a utility to interactively create tube surfaces from topology corners. and the ability to launch thin from mini-cad.

GridPro class schedule(Dates changed) - Jan 30, 2004

GridPro is an automatic object orientated multiblock generator that provides high quality, rapid grid generation. The President and founder, Dr. Peter Eiseman, has led the Program Development Corporation (PDC) to develop a solid suite of Grid Pro products with significant international presence and high-profile customer base.

Lockheed Martin Technical Operations has joined with the PDC to provide the training to help the engineering community meet needs in grid generation, computational fluid dynamics (CFD), and structural analysis

GridPro is a high fidelity tool that:

• Provides an easy to use interface
• Develops gridlines that are smooth and orthogonal for a high degree of CFD accuracy and efficiency
• Provides templates for quick and easy generation of new grids
• Includes intelligent codes to help the user generate high quality grids
• Allows users to modify configurations with ease because if its unique modular parametric design
• Requires 10 to 100 less data to generate a high quality grid
• Supports most common CFD codes (Fluet, StarCD, CFX, CFD++, GASP, CFD ACE, Wind, CGNS, ... ) and CAD systems (IGES, STEP, Parasolids, ACIS, CATIA, ProE, ...) as well as NASTRAN and PATRAN.

We are offering classes and invite you to attend to learn more about this grid generation tool. The classes offer training sessions that cover the use of the tool as well as hands on problem solving. The course, part lecture and part workshop, will help students learn Grid Pro with ease. Each student receives a soft and hard copy of manuals and tutorials as well as a 60-day trial copy of the software that includes issuance of a license. A help desk is also available to answer user questions.

Three classes are currently scheduled: February 23 - 26 2004, March 22 - 25, 2004 and 17 - 20 May 2004. We also offer on site training to meet your needs. Contact LMTO at 408-756-5010 or yota.cardaris@lmco.com to learn more about the tool and the class.

Yota Cardaris, GridPro Training, Engineering Services, Lockheed Martin Technical Operation , 1309 Moffett Park Drive, Sunnyvale , CA 94089Yota Cardaris, GridPro Training, Engineering Services, Lockheed Martin Technical Operation , 1309 Moffett Park Drive, Sunnyvale , CA 94089

Version 4.3 underway - Oct 16, 2003

GridPro version 4.3, which will feature a number of new features and some more bug fixes, is in its development cycle and is planned for release at the end of the year. The new features in 4.3 will substantially improve the productivity of your GridPro usage. The new features for version 4.3 will be

1. An automatic feature based surface dissection button in the minicad panel. This will allow users to automatically dissect triangular surfaces at the click of a button. The original option of the users manually selecting paths to dissect the surface is still available and can be used to supplement the automatic part.
2. A smoothing/reconstruction operation for triangular faceted surfaces. This can be used for smoothing out rough surface triangluations and can also improve on a coarse triangualtion. For example, triangular faceted surfaces obtained from CT scans etc can be improved very effectively using this.
3. A grid quality check button which will display the quality metrics like cell skewness, smoothness, warpage, aspect ratio in a dialog box. An interative button in this dialog box will allow users to display grid severities based on different qualtiy metric thresholds. This is essentially an interactive supplement for the qchk utility.
4. Option to use simulation work's Kubrix as an automatic topology generation program. Kubrix is a program which will produce a coarse hex mesh or topology assigned to surfaces in GridPro. This will automate the procedure of generating topology in GridPro for many cases. For most cases, users will also be able to use Kubrix as a topology accelerator - and quickly produce a topology using kubrix which can be modified interactively in the AZ manager.
5. An automatic trimming and wrapping button which will further automate the creation of topology. The trim button will automatically trim and wrap a topology for a list of surfaces. Users can use this to automate creation of parts of the topology and use features like group link and regional link to interactively bridge them into one single topology.
6. A additional clustering utility (mildclu) which will help in providing better control of the near wall spacing parameters. This is especially useful for turbulence simulations where the y+ spacing parameters are crucial.

Version 4.2.1 Released - Sept 21, 2002

The best Hex grid generation tool just got better.
The latest version of GridPro has been released. GridPro Version 4.2.1 has the following new features compared to GridPro Version 4.1.

1. Direct CAD import and repair using Transcendata's CadFix. CadFix is now available packaged with GridPro.
2. Support for more solver formats ( CGNS, DTF, ACUSIM ). These can be accessed interactively using GridPro's 'Property setter'.
3. A new utility called 'Nest' which can be accessed from GridPro's GUI. Nest automates the creation of topology for handling small features ( like thin oil wells, blood vessels, and other places where the local grid size is of a much smaller order than the field grid size) to produce smoothly transitioning grids.
4. A new wrap feature called 'Internal wrap' which automates topology creation for producing smooth grids across non-matching boundaries ( for example, features like fault lines).
5. A new aspect ratio check option in GridPro's quality check.
6. An improved way of handling interactive repair of geometry in GridPro's 'Minicad' which makes the process of CAD repair of triangular files more streamlined and efficient.
7. Porting to and debugging on newer platforms such as HP-UX 11.00, Win2000 and Windows XP.
8. The GridPro license manager shipped with version 4.2 works without the need for the NetBIOS in Win2000 and WinXP machines.
9. An option for custom defined length scale for wrap.
10. Finalized and debugged versions of features like 'Group Linking' and 'Smart Regional linking' of topology and some more bug fixes for other features.

Present users of GridPro can download the latest version from our website. Remember to save your old license file and ask for the decrypting password before you proceed to install the new version.

Version 4.2 Released - June 21, 2002

GridPro Version 4.2 has undergone successful tests in all platforms and has been released officially. If you are current customer of GridPro and would like to upgrade your version, please download the relevant files based on your Operating System and Hardware, and contact us at support@gridpro1.com for the decrypting key.

Please go to the download section to download the latest version of GridPro. Some tutorial files and the manuals have also been given in the download section. The Example_Cases section will feature some grid files in common formats like Nastran and Plot3D formats of some cases solved using GridPro. At present the example cases section is still undergoing construction, but we will have the cases out there for you to download and view soon.

Version 4.2 of GridPro to be released soon - May 21, 2002

GridPro Version 4.2 is being tested on all the major platforms and will be formally released soon. The new version will include support for more solver formats ( CGNS, DTF etc), finalized and debugged versions of features like Group Linking and Regional linking, a new wrap feature called internal wrap which automates topology creation for capturing features like fault lines, a new aspect ratio check option in GridPro's qchk, and an option for custom defined length scale for wrap. The new version also supports porting to and debugging on newer platforms such as HP-UX 11.00, Win2000 and WinXP, and some more debugs and fixes.

Nested Refinement - April 15, 2002

A new utility called Nest is being developed and will be released soon. Nest will create recursively nested topology automatically to handle tiny features in your geometry. The resulting grid is a pure high quality multi-block hex grid with no hanging nodes or bad cells. The utility will help in resolving the tiny features, while keeping the cell count the same at other places. Very thin blade edges, thin pipes in oil wells, thin blood vessels are some examples where nest can provide a fast and elegant solution to your problem.

GridPro/CadFix - April 1, 2002

PDC and Transcendata have partnered to release GridPro/CadFix. Official since april 2002, GridPro/Cadfix will allow users of GridPro to import IGES files as well as Native CAD formats into GridPro. For more information please contact us.