Development of technologies for hydrogen aircraft
JAXA Supercomputer System Annual Report February 2024-January 2025
Report Number: R24ECMP25
Subject Category: Competitive Funding
- Responsible Representative: Kenji Togami,team leader, Hydrogen Aircraft Core Technology Development Team
- Contact Information: Takuya Mitsukawa(mitsukawa.takuya@jaxa.jp)
- Members: Takuya Mitsukawa
Abstract
According to the specifications of hydrogen aircraft, we prototype and test a "boost pump" to pump up liquid hydrogen from a tank and an "engine pump" to supply high pressure hydrogen to the engine, and support product development by KHI and others.This work was supported by the funding from Development of Core Technologies for Hydrogen Aircraft program in the Green Innovation Fund Projects of NEDO.
Reference URL
N/A
Reasons and benefits of using JAXA Supercomputer System
Flluid analysis of internal flow is required in pump development and JSS3 was chosen because Ansys CFX is suitable for the analysis.
Achievements of the Year
In order to confirm the boost performance when multiple pumps are connected in series, we analyzed the internal flow of the pumps and confirmed that the required specifications were met.
Publications
N/A
Usage of JSS
Computational Information
- Process Parallelization Methods: MPI
- Thread Parallelization Methods: N/A
- Number of Processes: 1 - 4
- Elapsed Time per Case: 60 Hour(s)
JSS3 Resources Used
Fraction of Usage in Total Resources*1(%): 0.01
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 | 355.04 | 0.00 |
| 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 | 0.00 | 0.00 |
| /data and /data2 | 0.00 | 0.00 |
| /ssd | 0.00 | 0.00 |
| 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.
ISV Software Licenses Used
| ISV Software Licenses Used(Hours) | Fraction of Usage*2(%) | |
|---|---|---|
| ISV Software Licenses(Total) | 900.96 | 0.62 |
*2: Fraction of Usage：Percentage of usage relative to each resource used in one year.
JAXA Supercomputer System Annual Report February 2024-January 2025