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Aerodynamic and Aeroelastic analysis for rotorcraft

JAXA Supercomputer System Annual Report February 2024-January 2025

Report Number: R24EDA102C21

Subject Category: Aeronautical Technology

PDF (to be added)

  • Responsible Representative: Kanako Yasue, Aviation Technology Directorate, Aviation Integration Innovation Hub
  • Contact Information: Hideaki Sugawara(sugawara.hideaki@jaxa.jp)
  • Members: Fumihiro Kajiwara, Keita Kimura, Hideaki Sugawara, Yasutada Tanabe

Abstract

This project involves numerical simulations related to the aerodynamics and aeroelasticity analysis for rotorcraft, which is being carried out in the aviation technology directorate. The aerodynamic performance of next-generation rotorcraft is evaluated, and technology issues and newly designed shapes are investigated through numerical simulations. Additionally, numerical simulation results are provided for preliminary studies supporting wind tunnel tests and flight tests.

Reference URL

N/A

Reasons and benefits of using JAXA Supercomputer System

It is necessary to perform efficient computations using the JAXA supercomputer to analyze detailed flow fields around rotorcraft for numerous computational cases.

Achievements of the Year

CFD analysis is conducted in preliminary wind tunnel tests for the development of next-generation rotorcraft and helicopter rotor blades for international workshop. In the development of next-generation rotorcraft, aerodynamic analysis is conducted based on the initial rotorcraft design, and several technology issues are identified through numerical simulations. Additionally, the results of the numerical simulations are used in the planning of the wind tunnel tests. Figure 1 shows examples of numerical simulation results. For the international workshop, aeroelastic analysis of the rotor blades is mainly carried out. The numerical results are compared with those of the workshop partners and issues related to numerical simulations and wind tunnel testing plans are discussed.

Annual Report Figures for 2024

Fig.1: examples of numerical simulation results

 

Publications

– Non peer-reviewed papers

Sugawara and Tanabe, “Evaluation of Airframe Aerodynamics for Electric Vertical Take-Off and Landing Aircraft,” 62nd Aircraft Symposium

Tanabe and Sugawara, “Induced Velocity Distribution on a Lift-Rotor of an eVTOL Aircraft,” 62nd Aircraft Symposium

Usage of JSS

Computational Information

  • Process Parallelization Methods: N/A
  • Thread Parallelization Methods: OpenMP
  • Number of Processes: 1
  • Elapsed Time per Case: 240 Hour(s)

JSS3 Resources Used

 

Fraction of Usage in Total Resources*1(%): 0.17

 

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 30.09 0.00
TOKI-ST 1328026.19 1.36
TOKI-GP 0.00 0.00
TOKI-XM 0.00 0.00
TOKI-LM 108.01 0.01
TOKI-TST 34483.20 0.62
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 59.00 0.04
/data and /data2 112671.60 0.54
/ssd 604.42 0.03

 

Archiver Resources
Archiver Name Storage Used
(TiB)
Fraction of Usage*2(%)
J-SPACE 0.00 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 Resources
ISV Software Licenses Used
(Hours)
Fraction of Usage*2(%)
ISV Software Licenses
(Total)
53.09 0.04

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

JAXA Supercomputer System Annual Report February 2024-January 2025