RESULTS FORMAT


Forces and Moments Sign Convention:


 



 


 


Data Submittal Forms


The following Tecplot-readable Data Submittal Forms are to be used for submittal to SPICES-2013:

participant_info.dat - Participant Information

Compulsory Studies:

 

Case 1: Grid convergence study

Case 2: Drag Polar

Case 3: Drag Polar

Optional Studies:

 

Case 2: Side slip studies

Case 3: Wall effect studies 

Case 4: Elevon deflection studies 

Case 5: Spoiler deflection studies

Case 6: Transition studies 

 

 Download all Data Submittal Forms in a tarred, gzipped directory:

  XXX_Name_Code_Model_v1.tar

 

 Instructions:

  • Participant ID can be obtained from the Participants webpage.
  • For a given code and turbulence model, create a directory with all filled-out data submittal forms (with their original names) in it. If you are not using an optional file, please remove it.
  • The directory should be named: ID_Name_Code_Model_Otheridentifierifneeded (e.g., 015_Patil_CFD**_SST-V), where "Code" is the CFD code's name and "Model" is the turbulence model type. The ID number will be assigned to you by the committee.
  • Tar and gzip the directory.
  • Results from a different code and/or different turbulence model need to be put into a different directory.
  • Use separate directories for any circumstance where it makes sense to do so. For example, if running all the cases on more than one grid series (e.g., running both on organisers structured and unstructured grid), use a different directory for each set of results.
  • Results data should be mailed to nbalak@aero.iisc.ernet.in on or before 15th July 2013.

 Postprocessing: Surface Data Extraction

  • For those participants with access to Tecplot, macro files are provided here that can be used to extract data on the surface at all of the locations where pressure taps are located. Note that the pressure Data Forms ask for data in the following order: X, Y, Z, CP. Use these macros by performing the following steps for each of the cases run: 
  • Load (into Tecplot) a data file containing the solid walls along with your CFD solution on the walls. Be sure that X, Y, and Z are in meters. Check to see that Tecplot can read your data correctly.
  • If CP is not one of your solution variables, then use Tecplot to create it. ( use Data-Alter-SpecifyEquations to create new variables )
  • Modify the header data of both the macros, extractplanes.mcr and renamezones_case1.mcr to your techplot version.
  • Then, run the macro extractplanes.mcr. It will create 3 new zones of extracted data at all the cuts asked for, in the desired order.
  • Under Data-Delete-Zone, delete all original zones so that only the 3 newly created zones are left.
  • Pick the renaming macro (e.g., renamezones_case1.mcr for case 1). Edit it to replace "?" with the angle-of-attack and (for case 1 only) replace "%%%%%" with "coarse", "medium", or "fine". Also replace XXX with your assigned participant ID.
  • Run the renaming macro. This renames each of the cuts appropriately.
  • These cuts can then be written out by the user to an ASCII file (use point format); write out the variables X, Y, Z, CP. (in that order... this is the order defined in the data submittal form).
  • The zones from this file should then be relatively easy to include into the Data Forms.

             extractplanes.mcr
         
renamezones_case1.mcr

            

In case you do not have access to Tecplot, the following description will help to   extract the planes.

          1. Station3, X = 0.15, plane normal to X-axis.
          2. Station6, X = 0.3,   plane normal to X-axis.
          3. Station9, X = 0.45, plane normal to X-axis.