Research and Development of Emission Free Aircraft Technologies
JAXA Supercomputer System Annual Report April 2020-March 2021
Report Number: R20EDA102H01
Subject Category: Aeronautical Technology
- Responsible Representative: Akira Nishizawa, Aeronautical Technology Directorate, Next Generation Aeronautical Innovation Hub Center
- Contact Information: Yuzuru Yokokawa(yokokawa.yuzuru@jaxa.jp)
- Members: Yuzuru Yokokawa, Hamidreza Kheirandish, Keiji Ueshima, Taisuke Nambu, Kanako Yasue, Atsushi Hashimoto, Hirotaka Tsutsui, Hiroshi Kobayashi
Abstract
This research and development treats a turbo-electric hybrid propulsion system and aircraft configuration for electrized systems, which aims at raising the technical maturity level of emission free aircrafts.
Reference URL
N/A
Reasons and benefits of using JAXA Supercomputer System
The JSS3 is used to design a passenger aircraft equipped with a 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 order to investigate an aerodynamics of whole aircraft configuration with BLI (Boundary Layer Ingestion) fans and to evaluate an influence of the inlet distortion by incoming non-uniform flow to the BLI fan blade in next fiscal year, fundamental analysis for a single fan nacelle equipped with the actuator disc(Fig.1) and ducted rotary blade(Fig.2) were carried out.
Fig.1: Mach number contour of a single fan nacelle equipped with the actuator disc.
Fig.2: Flow velocity contour of ducted rotary blade.
Publications
N/A
Usage of JSS
Computational Information
- Process Parallelization Methods: MPI
- Thread Parallelization Methods: Automatic Parallelization
- Number of Processes: 36 - 768
- Elapsed Time per Case: 20 Hour(s)
Resources Used(JSS2)
Fraction of Usage in Total Resources*1(%): 0.02
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 | 45,185.24 | 0.01 |
| SORA-PP | 442.82 | 0.00 |
| SORA-LM | 147.96 | 0.09 |
| SORA-TPP | 0.00 | 0.00 |
| File System Name | Storage Assigned(GiB) | Fraction of Usage*2(%) |
|---|---|---|
| /home | 46.68 | 0.04 |
| /data | 10,591.94 | 0.20 |
| /ltmp | 4,072.11 | 0.35 |
| Archiver Name | Storage Used(TiB) | Fraction of Usage*2(%) |
|---|---|---|
| J-SPACE | 0.02 | 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.
Resources Used(JSS3)
Fraction of Usage in Total Resources*1(%): 0.37
Details
Please refer to System Configuration of JSS3 for the system configuration and major specifications of JSS3.
| System Name | Amount of Core Time(core x hours) | Fraction of Usage*2(%) |
|---|---|---|
| TOKI-SORA | 1,905,273.57 | 0.41 |
| TOKI-RURI | 7,912.99 | 0.05 |
| TOKI-TRURI | 0.00 | 0.00 |
| File System Name | Storage Assigned(GiB) | Fraction of Usage*2(%) |
|---|---|---|
| /home | 175.05 | 0.12 |
| /data | 20,956.22 | 0.35 |
| /ssd | 1,113.72 | 0.58 |
| Archiver Name | Storage Used(TiB) | Fraction of Usage*2(%) |
|---|---|---|
| J-SPACE | 0.02 | 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 2020-March 2021