JAXA Supercomputer System Annual Report February 2022-January 2023

Report Number: R22ETET15

Subject Category: Skills Acquisition System

PDF available here

• Responsible Representative: Tatsuya Ishii, Aeronautical Technology Directorate, Aviation Enviromental Sustanability Innovation Hub
• Contact Information: Dongyoun Kwak, Aviation Enviromental Sustanability Innovation Hub(kwak.dongyoun@jaxa.jp)
• Members: Nozomu Hayabe, Yasushi Ito, Shinya Koganezawa, Dongyoun Kwak, Yohsuke Matsuda, Mitsuhiro Murayama, Tatsuya Nishimoto, Haruki Arai, Masaru Hirata, Ryotaro Sakai, Kazuhiro Takeoka

Abstract

The purpose of the iGreen research is to develop and mature a bunch of advanced and innovative technologies on aerodynamics, aeroacoustics, and structures to enable airframe design with higher environmental performances. In addition to verifying practical application of these technologies, we will also work on the development of elemental and system technologies.

Reference URL

Please refer to https://www.aero.jaxa.jp/eng/research/ecat/igreen/ .

Reasons and benefits of using JAXA Supercomputer System

CFD analysis are used for the understanding of aerodynamic characteristics and evaluation of the performance in the aircraft design phase. Huge calculation resources and costs were required for the high fidelity and quick response CFD analysis for the optimum aerodynamic design process on complex aircraft geometry. JSS3 can achieve those requirements, the cost and time are drastically saved on the CFD analysis.

Achievements of the Year

Collaborative research activities with universities have been conducted for aerodynamic technologies to improve the environmental performances of subsonic aircraft such as low fuel consumption and low noise. In this year, aerodynamic design of anti-contamination devices(ACD) on the laminar wing, the boundary-layer transition control by surface temperature controlling were conducted on swept wings. On design of aerodynamic devices to prevent the boundary layer attachment-line contamination, the guideline for aerodynamic geometry design including the height were proposed, as well as, original geometry of ACD which can be effctively prevent the attachment-line contamination were designed.

Publications

– Oral Presentations

Nozomu HAYABE, Keisuke OHIRA and Dongyoun KWAK : Guidelines and criteria towards for the design of Anti-Contamination Device for laminar flow wings, 2022 Asia-Pacific International Symposium on Aerospace Technology, Niigata, Japan, 12-14 Oct, 2022.

Yohsuke Matsuda, Dongyoun Kwak : A Study of Boundary-Layer Transition Control by surface temperature Controlling on the Swept Wing, 2022 Asia-Pacific International Symposium on Aerospace Technology, Niigata, Japan, 12-14 Oct, 2022.

Usage of JSS

Computational Information

• Process Parallelization Methods: MPI
• Thread Parallelization Methods: N/A
• Number of Processes: 64 – 1024
• Elapsed Time per Case: 10 Hour(s)

JSS3 Resources Used

Fraction of Usage in Total Resources*1(%): 0.13

Details

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

*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

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

JAXA Supercomputer System Annual Report February 2022-January 2023