Research and Development of Emission Free Aircraft Technologies
JAXA Supercomputer System Annual Report February 2021-January 2022
Report Number: R21EDA102H01
Subject Category: Aeronautical Technology
- Responsible Representative: Akira Nishizawa, Aeronautical Technology Directorate
- Contact Information: Yuzuru Yokokawa(yokokawa.yuzuru@jaxa.jp)
- Members: Yuzuru Yokokawa, Hirotaka Tsutsu, Takayuki Sakurai, Marie Tanno, Atsushi Hashimoto, Taisuke Nambu, Kanako Yasue, Hideji Saikii, Hirokazu Higashida
Abstract
This research and development treats a turbo-electric hybrid propulsion system and aircraft configuration with Boundary Layer Ingestion for electrized systems, which aims at raising the technical maturity level of emission free aircrafts.
Reference URL
Please refer to https://www.aero.jaxa.jp/eng/research/frontier/feather/ .
Reasons and benefits of using JAXA Supercomputer System
The JSS3 is used to design a passenger aircraft equipped with an turbo-electric hybrid propulsion system. Because a huge computational resource is required to handle thermo-aerodynamics and fan blades, JSS3 is essential for the execution of this research and development.
Achievements of the Year
In this fiscal year, aerodynamic shape of hybrid electric aircraft with BLI(Boundary Layer Ingestion) fans was designed. Using FaSTAR-Move with an actuator disc function as a CFD solver, analysis was carried out by changing the shapes of fuselage tail, BLI fan nacelle, and tail wing.(Figure1, Figure2)
Fig.1: Streamline and total pressure contour of a hybrid electric aircraft with BLI fans.
Fig.2: Sureface pressure contour of convetional tail wing(left) and T-tail wing(right)
Publications
N/A
Usage of JSS
Computational Information
- Process Parallelization Methods: MPI
- Thread Parallelization Methods: OpenMP
- Number of Processes: 36 - 768
- Elapsed Time per Case: 12 Hour(s)
JSS3 Resources Used
Fraction of Usage in Total Resources*1(%): 0.10
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 | 2216747.67 | 0.11 |
| TOKI-ST | 50064.72 | 0.06 |
| TOKI-GP | 0.00 | 0.00 |
| TOKI-XM | 0.00 | 0.00 |
| TOKI-LM | 1131.56 | 0.08 |
| 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 | 287.09 | 0.29 |
| /data and /data2 | 73741.19 | 0.79 |
| /ssd | 2519.24 | 0.65 |
| Archiver Name | Storage Used(TiB) | Fraction of Usage*2(%) |
|---|---|---|
| J-SPACE | 7.47 | 0.05 |
*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) | 308.03 | 0.22 |
*2: Fraction of Usage：Percentage of usage relative to each resource used in one year.
JAXA Supercomputer System Annual Report February 2021-January 2022