Thermal analysis of satellites
JAXA Supercomputer System Annual Report February 2023-January 2024
Report Number: R23EDG20108
Subject Category: Research and Development
- Responsible Representative: Seiji Tsutsumi, Research and Development Directorate, Research Unit III
- Contact Information: tsutsumi.seiji@jaxa.jp(tsutsumi.seiji@jaxa.jp)
- Members: Masaharu Abe, Seiji Tsutsumi
Abstract
A high-precision, non-equilibrium thermal analysis model is developed for heat accumulators using PCM (Phase Change Material). And, the coupled analysis technology and real-time analysis technology of the thermal fluid region connected to the space vehicle digital twin are acquired.
Reference URL
N/A
Reasons and benefits of using JAXA Supercomputer System
In this study, the Enthalpy-Porosity method was employed with ANSYS Fluent whose licenses JSS3 had. In addition, parallel supercomputers of JSS3 was used to obtain the result.
Achievements of the Year
In comparison with the obtained test results, good agreement was obtained with the maximum error of 3.1K (Fig.1)
Publications
N/A
Usage of JSS
Computational Information
- Process Parallelization Methods: MPI
- Thread Parallelization Methods: N/A
- Number of Processes: 8 – 12
- Elapsed Time per Case: 72 Hour(s)
JSS3 Resources Used
Fraction of Usage in Total Resources*1(%): 0.03
Details
Please refer to System Configuration of JSS3 for the system configuration and major specifications of JSS3.
System Name | CPU Resources Used(Core x Hours) | Fraction of Usage*2(%) |
---|---|---|
TOKI-SORA | 0.00 | 0.00 |
TOKI-ST | 31696.91 | 0.03 |
TOKI-GP | 0.00 | 0.00 |
TOKI-XM | 0.00 | 0.00 |
TOKI-LM | 0.00 | 0.00 |
TOKI-TST | 0.00 | 0.00 |
TOKI-TGP | 0.00 | 0.00 |
TOKI-TLM | 0.00 | 0.00 |
File System Name | Storage Assigned(GiB) | Fraction of Usage*2(%) |
---|---|---|
/home | 45.91 | 0.04 |
/data and /data2 | 4000.78 | 0.02 |
/ssd | 0.00 | 0.00 |
Archiver Name | Storage Used(TiB) | Fraction of Usage*2(%) |
---|---|---|
J-SPACE | 92.66 | 0.33 |
*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.
ISV Software Licenses Used
ISV Software Licenses Used(Hours) | Fraction of Usage*2(%) | |
---|---|---|
ISV Software Licenses(Total) | 4485.96 | 2.02 |
*2: Fraction of Usage:Percentage of usage relative to each resource used in one year.
JAXA Supercomputer System Annual Report February 2023-January 2024