Robust design for Jet Engine/Aerodynamic performance analyses for LPT

JAXA Supercomputer System Annual Report February 2025-January 2026

Report Number: R25EDA201C52

Subject Category: Aeronautical Technology

PDF (to be added)

Responsible Representative: Atsushi Kanda, Aviation Technology Directorate, Aviation Environmental Sustainability Innovation Hub
Contact Information: Junichi Kazawa, Aeronautical Technology Directorate, Aviation Environmental Sustainability Innovation Hub(kazawa.junichi@jaxa.jp)
Members: Junichi Kazawa, Liki Matsuyama, Naoki Nakamura

Abstract

developing technologies that contribute to reducing losses in high-load LPT.

Reference URL

N/A

Reasons and benefits of using JAXA Supercomputer System

The calculation is large-scale because it involves performing a stator-rotor-stator blade row analyses (1.5 stages) of the LPT using LES, and therefore the analysis cannot be performed without JSS3.

Achievements of the Year

We performed stator-rotor-stator blade rows analyses of LPT using RANS and LES to investigate technologies that contribute to loss reduction. We understood the loss reduction mechanism in the technologies under consideration.

Publications

N/A

Usage of JSS

Computational Information

Process Parallelization Methods: MPI
Thread Parallelization Methods: N/A
Number of Processes: 36 - 360
Elapsed Time per Case: 1848 Hour(s)

JSS3 Resources Used

Fraction of Usage in Total Resources*1(%): 0.28

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	5630792.70	0.26
TOKI-ST	673814.08	0.70
TOKI-GP	0.00	0.00
TOKI-XM	0.00	0.00
TOKI-LM	41.08	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	0.00	0.00
/data and /data2	0.00	0.00
/ssd	0.00	0.00

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)	6.38	0.00

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