Research on advanced rocket engines
JAXA Supercomputer System Annual Report February 2023-January 2024
Report Number: R23EDG20102
Subject Category: Research and Development
- Responsible Representative: Toshiya Kimura, Specially appointed advisor, Research and Development Directorate, Research Unit IV
- Contact Information: Toshiya Kimura, Research and Development Directorate, Research Unit IV(kimura.toshiya@jaxa.jp)
- Members: Kosei Goto, Taku Inoue, Toshiya Kimura, Shinichi Moriya, Mitsuru Shimagaki, Masaharu Takahashi
Abstract
The objective of our work is to accelerate ongoing projects such as RV-X and CALLISTO, which are R&D of small reusable rockets, and future researches on reusable and advanced rocket engines through numerical simulations.
Reference URL
N/A
Reasons and benefits of using JAXA Supercomputer System
It is very useful for researchers who make R&D of advanced rocket engines that various softwares such as CFD and FEM are available.
Achievements of the Year
Coupled thermal fluid simulations were made for radial gap motors and axial gap motors which will be used in electric pumps of electic pump fed cycle rocket engines. The efficient cooling method of these motors were examined.
The pump and the motor were simulated as a single numerical model to examine thermal and fluid conditions in these systems.
Fig.1: The temperature distribution in the 2 sets of the radial gap motor and pump, in which cooling path is sequentially connected.
Publications
N/A
Usage of JSS
Computational Information
- Process Parallelization Methods: N/A
- Thread Parallelization Methods: N/A
- Number of Processes: 1
- Elapsed Time per Case: 1 Second(s)
JSS3 Resources Used
Fraction of Usage in Total Resources*1(%): 0.12
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 | 0.00 | 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 | 90.43 | 0.08 |
| /data and /data2 | 100.00 | 0.00 |
| /ssd | 0.00 | 0.00 |
| Archiver Name | Storage Used(TiB) | Fraction of Usage*2(%) |
|---|---|---|
| J-SPACE | 0.08 | 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) | 10766.00 | 4.86 |
*2: Fraction of Usage：Percentage of usage relative to each resource used in one year.
JAXA Supercomputer System Annual Report February 2023-January 2024