Development of FaSTAR-Move

JAXA Supercomputer System Annual Report April 2019-March 2020

Report Number: R19EA3201

Subject Category: Aeronautical Technology

Responsible Representative: Kanako Yasue, Aeronautical Techonology Directorate, Numerical Simulation Research Unit
Contact Information: Kanako Yasue(yasue.kanako@jaxa.jp)
Members: Keiji Ueshima, Atsushi Hashimoto, Takashi Ishida, Shigeru Kuchiishi, Kanako Yasue, Hitoshi Arizono, Ryosuke Fuse, Toru Yada, Mami Hayakawa

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 analysis for turbine and rotor/body interaction analysis for helicopter. It was comfirmed that FaSTAR-Move can reasonably simulate the flow field around them.

Fig.1: Mach number contours for flow around Stage 37.

Fig.2: Q-criteria of the rotor/body interaction analysis for helicopter.

Publications

N/A

Usage of JSS2

Computational Information

Process Parallelization Methods: MPI
Thread Parallelization Methods: N/A
Number of Processes: 256 – 2048
Elapsed Time per Case: 200 Hour(s)

Resources Used

Fraction of Usage in Total Resources*1(%): 0.95

Details

Please refer to System Configuration of JSS2 for the system configuration and major specifications of JSS2.

Computational Resources
System Name	Amount of Core Time (core x hours)	Fraction of Usage*2(%)
SORA-MA	7,875,523.31	0.96
SORA-PP	74,469.64	0.48
SORA-LM	4,700.01	1.96
SORA-TPP	2,972.28	0.18

File System Resources
File System Name	Storage Assigned (GiB)	Fraction of Usage*2(%)
/home	979.70	0.82
/data	79,206.55	1.36
/ltmp	5,732.20	0.49

Archiver Resources
Archiver Name	Storage Used (TiB)	Fraction of Usage*2(%)
J-SPACE	5.74	0.14

*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.