-
Notifications
You must be signed in to change notification settings - Fork 0
Outputs
HI-Mach can be configured to produce several different outputs once the flow solution has been computed. These outputs are specified in the Output section of the input file. There are two types of output from HI-Mach: body results, and report files.
HI-Mach will output pressures, inclination angles, shielded regions, etc. on the surface of the body being analyzed. If the mesh is being mirrored and the freestream flow is not symmetric with the mesh, then the calculated results on the mirrored half of the mesh may also be exported.
The following data are contained in the body vtk file:
| Label | Type | Explanation |
|---|---|---|
| C_p | Cell | Pressure coefficient. |
| N_discontinuous_edges | Cell | Number of edges of each panel which are considered discontinuous for the higher-order singularity distributions. |
| centroid | Cell | Location of the centroid of each panel. |
| dC_f | Cell | Dimensionless force vector acting on each panel due to external pressures. |
| normals | Cell | Panel normal vector. |
| theta | Cell | Panel inclination angle. |
| shielded | Cell | Number of vertices of each windward panel which are shielded by other upstream panels. |
| separation | Cell | Whether a panel is considered a base region. |
The report file contains general information about the case, how and when it was run, the results and timing, and the input used. If multiple cases were run, the report file will contain results for each case. The structure of the report file (assuming the run was successful) is as follows:
{
"info" : {
"generated_by" : "HI-Mach (c) 2023 USU Aerolab",
"executed" : <EXECUTION DATE AND TIME>
},
"mesh_info" : {
"N_body_panels" : <NUMBER OF PANELS ON THE BODY>,
"N_body_vertices" : <NUMBER OF VERTICES ON THE BODY>,
"average_characteristic_length" : <AVERAGE CHARACTERISTIC LENGTH (SQUARE ROOT OF PANEL AREA) FOR THE BODY>
},
"total_forces" : {
"Cx" : <TOTAL FORCE IN THE X DIRECTION>,
"Cy" : <TOTAL FORCE IN THE Y DIRECTION>,
"Cz" : <TOTAL FORCE IN THE Z DIRECTION>,
"C_L" : <BODY LIFT COEFFICIENT [ONLY PROVIDED IF FREESTREAM FLOW WAS DEFINED BY ALPHA]>
},
"total_moments" : {
"CMx" : <TOTAL MOMENT ABOUT THE X AXIS>,
"CMy" : <TOTAL MOMENT ABOUT THE Y AXIS>,
"CMz" : <TOTAL MOMENT ABOUT THE Z AXIS>
},
"input" : {
<INPUT AS SUPPLIED TO HI-MACH>
...
},
"total_runtime" : <TOTAL (WALL) TIME REQUIRED TO RUN MACHLINE>
}