Development of FaSTAR-Move

JAXA Supercomputer System Annual Report February 2021-January 2022

Report Number: R21EA3201

Subject Category: Aeronautical Technology

Responsible Representative: Kanako Yasue, Aviationl Techonology Directorate
Contact Information: Kanako Yasue(yasue.kanako@jaxa.jp)
Members: Hitoshi Arizono, Atsushi Hashimoto, Kenji Hayashi, Takashi Ishida, Masatoshi Kanayama, Takahisa Kohno, Taisuke Nambu, Kanako Yasue

Abstract

FaSTAR-Move, an extended version of the fast unstructured-grid flow solver FaSTAR, is developed to analyse flow field around moving/deforming objects such as external store separation, flutter, rotor, and compressor/turbine of aero-engines.

Reference URL

N/A

Reasons and benefits of using JAXA Supercomputer System

JSS is necessary to complete numerical simulations of unsteady phenomena and to understand it in short time span.

Achievements of the Year

FaSTAR-Move have been extended to enable rotor-stator steady analysis for rotating cascade and rotorcraft analysis with conplex geometry. It was comfirmed that FaSTAR-Move can reasonably simulate the flow field around them.

Fig.1: Steady state analysis result of axial compressor using frozen rotor method: Mach number distribution.

Fig.2: Example of rotorcraft analysis.

Publications

N/A

Usage of JSS

Computational Information

Process Parallelization Methods: MPI
Thread Parallelization Methods: N/A
Number of Processes: 768 – 1024
Elapsed Time per Case: 150 Hour(s)

JSS3 Resources Used

Fraction of Usage in Total Resources*1(%): 0.47

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	10288054.93	0.50
TOKI-ST	75525.48	0.09
TOKI-GP	0.00	0.00
TOKI-XM	9800.38	7.06
TOKI-LM	2432.47	0.18
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	2640.47	2.63
/data and /data2	90572.14	0.97
/ssd	3219.75	0.83

Archiver Resources
Archiver Name	Storage Used (TiB)	Fraction of Usage*2(%)
J-SPACE	7.47	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)	903.79	0.63

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