Advanced simulation of internal flow in rotating machinery

JAXA Supercomputer System Annual Report February 2022-January 2023

Report Number: R22EDA201P11

Subject Category: Aeronautical Technology

Responsible Representative: Atsushi Kanda, Aviation Technology Directorate, Aviation Safety Innovation Hub
Contact Information: Junichi Kazawa, Aviation Technology Directorate, Aviation Safety Innovation Hub(kazawa.junichi@jaxa.jp)
Members: Kazuhisa Amemiya, Shunji Enomoto, Junichi Kazawa

Abstract

In order to improve the accuracy of predicting the aerodynamic performance of the rotating machine by numerical simulation, comparison with known data will be performed.

Reference URL

N/A

Reasons and benefits of using JAXA Supercomputer System

Since a large-scale analysis is performed as a verification of the LES analysis, it cannot be performed without JSS.

Achievements of the Year

Verifications of numerical analyses by LES were performed for NACA0012 and T106A low-pressure turbine cascades.

Fig.1: Iso Surface of Q value (NACA0012)

Fig.2: Cp distribution on the blade surface (T106A)

Publications

N/A

Usage of JSS

Computational Information

Process Parallelization Methods: MPI
Thread Parallelization Methods: OpenMP
Number of Processes: 152 – 544
Elapsed Time per Case: 1440 Hour(s)

JSS3 Resources Used

Fraction of Usage in Total Resources*1(%): 0.45

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	11995668.57	0.52
TOKI-ST	72660.57	0.07
TOKI-GP	0.00	0.00
TOKI-XM	0.00	0.00
TOKI-LM	0.00	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	31.40	0.03
/data and /data2	9644.86	0.07
/ssd	603.48	0.08

Archiver Resources
Archiver Name	Storage Used (TiB)	Fraction of Usage*2(%)
J-SPACE	20.99	0.09

*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)	0.07	0.00

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