Research and Development of Emission Free Aircraft Technologies
JAXA Supercomputer System Annual Report February 2023-January 2024
Report Number: R23EDA102H01
Subject Category: Aeronautical Technology
- Responsible Representative: Akira Nishizawa, Aeronautical Technology Directorate
- Contact Information: Yuzuru Yokokawa(yokokawa.yuzuru@jaxa.jp)
- Members: Masaya Funada, Atsushi Hashimoto, Hiroshi Kobayashi, Taisuke Nambu, Takayuki Sakurai, Keisuke Sugaya, Yoshiharu Tamaki, Hirotaka Tsutsui, Keiji Ueshima, Kanako Yasue, Yuzuru Yokokawa
Abstract
With the ultimate goal of achieving emission-free (zero emissions) aircraft, research and development of electric hybrid propulsion system is conducted, which includes the WAT(Wake Adaptive Thruster) fans at the end of fuselage, and new configuration of electric aircraft that apply them, as well as system demonstration project.
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 both thermodynamics and aerodynamics, JSS3 is essential for the execution of this research and development.
Achievements of the Year
This year, three analyses were conducted. One of them is the multi objective optimization of the aerodynamic shape of the electric hybrid aircraft with WAT fans. FaSTAR-Move with the actuator disk was used as the solver to find low drag shape of the WAT fan nacelle. In addition, we conducted an analysis to define a model shape which is used in the transonic wind tunnel test to be conducted in the next fiscal year using UTCart, a solver owned by the University of Tokyo. (Fig. 1) The third is an analysis to study the SACOC (Surface Air Cooled Oil Cooler) fins for electric motors and their demonstration systems. FaSTAR was also used as a solver to simulate a demonstration in the high-altitude environment test facility. (Fig. 2)
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(%): 0.50
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 | 13231661.42 | 0.60 |
TOKI-ST | 2106.81 | 0.00 |
TOKI-GP | 0.00 | 0.00 |
TOKI-XM | 293.89 | 0.16 |
TOKI-LM | 8433.27 | 0.64 |
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 | 1157.87 | 0.96 |
/data and /data2 | 152805.83 | 0.94 |
/ssd | 32420.21 | 3.06 |
Archiver Name | Storage Used(TiB) | Fraction of Usage*2(%) |
---|---|---|
J-SPACE | 19.06 | 0.07 |
*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) | 973.51 | 0.44 |
*2: Fraction of Usage:Percentage of usage relative to each resource used in one year.
JAXA Supercomputer System Annual Report February 2023-January 2024