Robust design for Jet Engine/Development of Robust design technology

JAXA Supercomputer System Annual Report February 2024-January 2025

Report Number: R24EDA201C50

Subject Category: Aeronautical Technology

PDF available here

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: Takashi Ishiyama, Takafumi Kanayama, Masaya Suzuki, Kenshi Yamashita

Abstract

Solve the technical challenges involved in realizing small-core jet engines.

Reference URL

N/A

Reasons and benefits of using JAXA Supercomputer System

The calculation domain is the high pressure turbine - strut - low pressure turbine, so the calculation scale is large and the analysis can only be performed using JSS3.

Achievements of the Year

Verifications of cascade flutter were carried out and compared with the test results. A large-scale analyses of the high pressure turbine-strut-low pressure turbine were also carried out, and it was confirmed that a reasonable solution could be obtained.

Fig.1: Unsteady pressure distribution on the blade surface in cascade flutter analysis (amplitude)

Fig.2: Unsteady pressure distribution on the blade surface in cascade flutter analysis (phase)

Publications

N/A

Usage of JSS

Computational Information

Process Parallelization Methods: MPI
Thread Parallelization Methods: OpenMP
Number of Processes: 936 - 972
Elapsed Time per Case: 11300 Second(s)

JSS3 Resources Used

Fraction of Usage in Total Resources*1(%): 0.21

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	4496849.36	0.21
TOKI-ST	373156.44	0.38
TOKI-GP	0.00	0.00
TOKI-XM	0.00	0.00
TOKI-LM	0.43	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	0.39	0.00
/data and /data2	5793.55	0.03
/ssd	0.00	0.00

Archiver Resources
Archiver Name	Storage Used (TiB)	Fraction of Usage*2(%)
J-SPACE	11.64	0.04

*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)	290.90	0.20

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