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Research on Aircraft Multidisciplinary Design Technology

JAXA Supercomputer System Annual Report February 2023-January 2024

Report Number: R23EA0602

Subject Category: Aeronautical Technology

PDF available here

  • Responsible Representative: Dongyoun Kwak, Aviation Enviromental Sustanability Innovation Hub, Aviation Technology Directorate
  • Contact Information: Mitsuhiro Murayama, Aviation Environmental Sustainability Innovation Hub, Aviation Technology Directorate(murayama.mitsuhiro@jaxa.jp)
  • Members: Ryutaro Furuya, Tomoaki Ikeda, Yasushi Ito, Fumitake Kuroda, Keisuke Ohira, Yuki Kishi, Dongyoun Kwak, Mitsuhiro Murayama

Abstract

The purpose of the research is to develop and mature a bunch of advanced and innovative elemental technologies on aerodynamics, aeroacoustics, and structures to enable airframe design with higher environmental performances of future aircraft application, thereby helping the Japanese aviation industry to enhance its share on the global market.

Reference URL

N/A

Reasons and benefits of using JAXA Supercomputer System

To develop and mature advanced and innovative technologies of aerodynamic drag reduction, aircraft noise reduction, and airframe-engine installation design for future aircrafts, development of CFD technologies and CFD-based design/analyis have been conducted in this research. The high-fidelity CFD analysis of the whole aircraft configurations with the airframe-engine installation requires large computational resources. JSS enables the high-fidelity evaluations of the peformance in a timely manner and the technology developments.

Achievements of the Year

Studes on airframe-engine installation design for low-noise JAXA Technology-Reference-Aircraft 2035A (TRA2035A, 220-seat class) with a wide fuselage have been conducted by steady-state RANS CFD analyses. The changes of aerodynamic performances by the location of the short inlet nacelles and modification of aft-fuselage geometry have been clarified in the studies. The design has significantly reduced drag. Figure 1 shows TRA2035A configuration used in the studies.

Annual Reoprt Figures for 2023

Fig.1: JAXA Low-noise Technology-Reference-Aircraft 2035A (TRA2035A, 220-seat class) with a wide fuselage

 

Publications

N/A

Usage of JSS

Computational Information

  • Process Parallelization Methods: MPI
  • Thread Parallelization Methods: OpenMP
  • Number of Processes: 100 – 400
  • Elapsed Time per Case: 32 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.

Computational Resources
System Name CPU Resources Used
(Core x Hours)
Fraction of Usage*2(%)
TOKI-SORA 13575402.83 0.61
TOKI-ST 3880.84 0.00
TOKI-GP 0.00 0.00
TOKI-XM 0.00 0.00
TOKI-LM 64.50 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 190.71 0.16
/data and /data2 10983.66 0.07
/ssd 2091.67 0.20

 

Archiver Resources
Archiver Name Storage Used
(TiB)
Fraction of Usage*2(%)
J-SPACE 14.32 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 Resources
ISV Software Licenses Used
(Hours)
Fraction of Usage*2(%)
ISV Software Licenses
(Total)
24.11 0.01

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

JAXA Supercomputer System Annual Report February 2023-January 2024