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Version 4.0

The NPARC Alliance

NASA Glenn Research Center
Cleveland, Ohio

USAF Arnold Engineering Development Complex external link
Tullahoma, Tennessee

Wind-US is a computational platform which may be used to numerically solve various sets of equations governing physical phenomena. Currently, the code supports the solution of the Euler and Navier-Stokes equations of fluid mechanics, along with supporting equation sets governing turbulent and chemically reacting flows.

Wind-US is a product of the NPARC Alliance, a partnership between the NASA Glenn Research Center (GRC) and the Arnold Engineering Development Complex (AEDC) dedicated to the establishment of a national, applications-oriented flow simulation capability. The Boeing Company external link has also been closely associated with the Alliance since its inception, and represents the interests of the NPARC User's Association.

The current version of Wind-US is 4.0. A list of the major changes from previous versions is available. Documentation for Wind-US 3.0 still exists, but is no longer being maintained. Documentation for earlier versions has been removed.

In addition to the documentation for Wind-US itself, documentation is also available for various pre- and post-processing programs used with Wind-US, and for various "guidelines" developed for use by the NPARC Alliance during software development projects.

Most of the documentation is available in both PDF (generated using pdfTeX external link and the hyperref external link package) and HTML form. The PDF files may be viewed and/or printed using a variety of freely available software packages, including Acrobat Reader external link, GhostScript external link, and xpdf external link. The HTML version of the documentation is also available for installation on a local system.

In the PDF documents, hyperlinks in blue are internal to the document. Hyperlinks in red are external, mostly to other Wind-US PDF documents. These external links will not work when the PDF document is viewed by opening it through your WWW browser. They will work if you download the various Wind-US PDF documents to your local system, storing each document in its own subdirectory under a common parent directory, and open the document locally using a viewer like Acrobat Reader.

The NPARC Alliance also maintains a CFD Code Validation web site. The objectives of the site are: (1) to provide documented validation and example cases, with downloadable input and output files, for Wind-US; and (2) to provide analytical, computational, and experimental validation data for use by the CFD community in general.

What's New?
Recent change history for the development of Wind-US documentation.

Wind-US Installation Guide
Information about the various code "distributions" that are available, and instructions on downloading and installing Wind-US and its associated pre- and post-processing tools.

Wind-US User's Guide
Describes the operation and use of Wind-US.

Wind-US Developer's Reference
Contains detailed information about Wind-US intended for those doing development work. Distribution of this document is restricted to registered Wind-US users. Contact for more information.

GMAN User's Guide
An interactive menu-driven pre-processor that is used to specify boundary condition types, and zone connectivity in multi-zone grids.

MADCAP User's Guide
A graphical user interface that will eventually provide access to the full range of tools and processes used to perform CFD analyses. Currently performs many of the same functions as GMAN, plus a few other Wind-US utilities. Requires that Tcl/Tk external link be available on the user's system.

CFPOST User's Guide
A post-processor that may be used to examine the contents of the Common Flow (.cfl) file created by Wind-US.

Various pre- and post-processing utilities supplied with the Wind-US tools distribution.

Common File User's Guide
Detailed information about the common file library, a set of routines providing access to common files.

Guidelines Documents
Programming, documentation, and testing guidelines created for use by the NPARC Alliance during software development projects.


Last updated 22 Jan 2024