Test Cases for the Second AIAA Sonic Boom Prediction Workshop

Grids, geometry, data submittal forms, and instructions are available
at

ftp://lbpw-ftp.larc.nasa.gov/outgoing/sbpw2/

ftp lbpw-ftp.larc.nasa.gov
Name : anonymous
Password: My.Name@email.address
ftp> cd outgoing/sbpw2/

The two required cases and instructions for atmospheric propagation
are available in the propagation directory.

There are three required and one optional model for nearfield prediction
(ModelName)

Required:
 axie: Axisymmetric Equivalent Area
 jwb: JAXA Wing Body
 c25d-flowthru: NASA Concept 25D with Flow Through Nacelle

Optional:
 c25d-powered: NASA Concept 25D with Engine Boundary Conditions

Each participant group is required to submit a LastName-info.txt file,
see the template on the ftp site. Duplicate the solver information
sections if more than one simulation tool is used. Duplicate the case
information sections as necessary. Ensure that any data file submitted
includes the ModelName, corresponding participant's LastName, and the
CaseName in the file name.

There is a "data-submittal" directory under each model directory. A
README and templates for each form are available in this location. The
"data-submittal" directory may also contain scripts and other
information to aid data extraction and submittal.

For each case, a minimum of 3 grids in a uniform refinement series
must be used if their solver can utilize a grid format provided. This
should include the finest grid that the participant has the resources
to run and two or more consecutive courser grids. Both inviscid and
viscous grids are provided for some cases. The participant may choose
to submit either inviscid analysis or viscous analysis or both. If
inviscid and viscous analysis is performed, a minimum of a three grid
refinement study using the required grids is required for both
inviscid and viscous analysis. The evaluation of multiple schemes,
codes, or turbulence models is encouraged. Optional grids are provided
for some models in an "optional" directory. Results for the optional
grids are requested from participants, but not required.

Participants are encouraged to generate their own grids using their
best practices. The extent of these generated grids should be large
enough to capture the return of the tail portion of the signature to
near ambient pressure levels. Adaptive methods are also
encouraged.
 
Participants with adaptive grid results should submit a data set
(CaseName) for their finest adaptive grid and two or more intermediate
grids that are as close to factors of two reduction in degrees of
freedom as possible. For example, if your finest adapted grid has n
nodes, submit your intermediate grids that are as close to n/2 and n/4
nodes as possible.

The grid for any case submitted to the workshop must be
submitted with the results by uploading the grid to the FTP
server. Acceptable grid formats are CGNS, AFLR3 ugrid, and VGRID
cogsg. If you need a description of the formats or are not able to
produce one of these formats, please contact the workshop committee
for assistance.

A section of the FTP server is available for uploading grids and results,

ftp lbpw-ftp.larc.nasa.gov
Name : lbpw
Password: in2publicdomain
ftp> cd incoming
[make sure your ftp client is using binary mode]
ftp> put my_filename

You are encouraged to create a directory for your submission,
ftp> mkdir LastName
ftp> cd LastName

This is a write-only section of the FTP server. You can see a listing
of files, but you can not download files in this section. Due to file
permissions, you can not upload the same file name twice; you must use
a different file name each time.