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Research and development of basic technologies for building conceptual design frameworks

JAXA Supercomputer System Annual Report February 2023-January 2024

Report Number: R23EDA201G18

Subject Category: Aeronautical Technology

PDF available here

  • Responsible Representative: Yasuhiro Mizobuchi, Aircraft Lifecycle Innovation Hub, Aviation Technology Directorate
  • Contact Information: Makoto Ueno, Aircraft Lifecycle Innovation Hub, Aviation Technology Directorate(ueno.makoto@jaxa.jp)
  • Members: Makoto Ueno, Kento Yamada

Abstract

This research aims to enable aircraft operators to make appropriate business decisions ahead of market changes in new aircraft markets, including the rapidly changing unmanned aircraft market, by making it easier to understand aircraft performance and to develop or select aircrafts that match the market, especially in the initial phase of business.

Reference URL

N/A

Reasons and benefits of using JAXA Supercomputer System

JSS3 was chosen because it requires multiple parallel calculations because it involves calculations around rotating propellers, and because the high-speed fluid calculation program FaSTAR-Move is also optimized.

Achievements of the Year

The flow around a rotating propeller for commercially available model electric aircraft was computed by CFD analysis, and the thrust coefficient and power coefficient were obtained. It is expected to be used as reference data for flight tests and wind tunnel tests.

Annual Reoprt Figures for 2023

Fig.1: On surface and near surface computational grid.

 

Annual Reoprt Figures for 2023

Fig.2: Velocity distributiona after 30 rotations.

 

Annual Reoprt Figures for 2023

Fig.3: Q-value distribution after 30 rotasions.

 

Publications

N/A

Usage of JSS

Computational Information

  • Process Parallelization Methods: MPI
  • Thread Parallelization Methods: N/A
  • Number of Processes: 480 – 1440
  • Elapsed Time per Case: 196 Hour(s)

JSS3 Resources Used

 

Fraction of Usage in Total Resources*1(%): 0.03

 

Details

Please refer to System Configuration of JSS3 for the system configuration and major specifications of JSS3.

Computational Resources
System Name CPU Resources Used
(Core x Hours)
Fraction of Usage*2(%)
TOKI-SORA 737643.47 0.03
TOKI-ST 2481.46 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 Resources
File System Name Storage Assigned
(GiB)
Fraction of Usage*2(%)
/home 1113.44 0.92
/data and /data2 127302.22 0.79
/ssd 30720.00 2.90

 

Archiver Resources
Archiver Name Storage Used
(TiB)
Fraction of Usage*2(%)
J-SPACE 19.63 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 Resources
ISV Software Licenses Used
(Hours)
Fraction of Usage*2(%)
ISV Software Licenses
(Total)
260.41 0.12

*2: Fraction of Usage:Percentage of usage relative to each resource used in one year.

JAXA Supercomputer System Annual Report February 2023-January 2024