Aerothermodynamic data of Mars aerocapture by JONATHAN
JAXA Supercomputer System Annual Report April 2018-March 2019
Report Number: R18EA1402
Subject Category: Aeronautical Technology
- Responsible Representative: Takashi Ozawa, Research and Development Directorate, Research Unit II
- Contact Information: Takashi Ozawa(takashi@chofu.jaxa.jp)
- Members: Toshiyuki Suzuki, Takashi Ozawa, Ryotaro Murakami
Abstract
To obtain aerothermodynamic data of Mars aerocapture.
Reference URL
N/A
Reasons for using JSS2
It is necessary to use JONATHAN.
Achievements of the Year
Heat flux distribution around aeroshell was obtained by JONATHAN. As a result, heat flux at stagnation point was about 1.2 MW/m2. In addition, even in Martian atmosphere, heat flux of aftbody is much smaller than that of forebody and it is enough large for heat flux of aftbody to assume 1/10 of heat flux at stagnation point.
Fig.1: Heat flux distribution around aeroshell
Publications
N/A
Usage of JSS2
Computational Information
- Process Parallelization Methods: MPI
- Thread Parallelization Methods: OpenMP
- Number of Processes: 49
- Elapsed Time per Case: 12 Hour(s)
Resources Used
Fraction of Usage in Total Resources*1(%): 0.04
Details
Please refer to System Configuration of JSS2 for the system configuration and major specifications of JSS2.
| System Name | Amount of Core Time(core x hours) | Fraction of Usage*2(%) |
|---|---|---|
| SORA-MA | 231,991.27 | 0.03 |
| SORA-PP | 0.00 | 0.00 |
| SORA-LM | 0.00 | 0.00 |
| SORA-TPP | 0.00 | 0.00 |
| File System Name | Storage Assigned(GiB) | Fraction of Usage*2(%) |
|---|---|---|
| /home | 435.51 | 0.45 |
| /data | 8,519.49 | 0.15 |
| /ltmp | 9,440.11 | 0.81 |
| Archiver Name | Storage Used(TiB) | Fraction of Usage*2(%) |
|---|---|---|
| J-SPACE | 0.00 | 0.00 |
*1: Fraction of Usage in Total Resources: Weighted average of three resource types (Computing, File System, and Archiver).
*2: Fraction of Usage：Percentage of usage relative to each resource used in one year.
JAXA Supercomputer System Annual Report April 2018-March 2019