Development of a high-precision unstructured mesh flow solver for aerodynamic design of turbomachinery cascade

JAXA Supercomputer System Annual Report February 2022-January 2023

Report Number: R22EDA101C13

Subject Category: Aeronautical Technology

Responsible Representative: ISHII Tatsuya, Director, Aviation Technology Directrate, Aviation Environmental Sustainability Innovation Hub
Contact Information: Taisuke Nambu, Aviation Technology Directorate, Aviation Environmental Sustainability Innovation Hub(nambu.taisuke@jaxa.jp)
Members: Manabu Hisida, Hamidreza Kheirandish, Junichi Kazawa, Takahisa Kohno, Taisuke Nambu, Kanako Yasue

Abstract

FaSTAR-Move-AE, a fluid analysis solver for unstructured meshes, which is mainly targeted at turbomachinery analysis, is developed. This solver will enable aerodynamic analysis of cascades with complex geometry with practical accuracy and cost, and will improve the turbomachinery design of Japanese engine manufacturers.

Reference URL

N/A

Reasons and benefits of using JAXA Supercomputer System

For large scale computations in the future, programs should be tested under the same computational environment.

Achievements of the Year

We are developing a fluid analysis solver for unstructured meshes FaSTAR-Move-AE, which mainly targets the analysis of turbomachinery cascade. In the current fiscal year, we have implemented the “DES/LES turbulence model”, “low dissipation scheme”, “inlet turbulence generation method” and “non-reflecting boundary method” with the aim of performing detailed unsteady analysis using DES/LES.

Fig.1: Rectangular duct flow with turbulence generated at the inlet boundary by the turbulence generation function

Fig.2: Check of non-reflecting boundary method by a simple geometry case.

Publications

N/A

Usage of JSS

Computational Information

Process Parallelization Methods: MPI
Thread Parallelization Methods: N/A
Number of Processes: 1 – 1024
Elapsed Time per Case: 24 Hour(s)

JSS3 Resources Used

Fraction of Usage in Total Resources*1(%): 0.07

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	1975579.92	0.09
TOKI-ST	2886.08	0.00
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	204.24	0.18
/data and /data2	21348.10	0.16
/ssd	2241.50	0.31

Archiver Resources
Archiver Name	Storage Used (TiB)	Fraction of Usage*2(%)
J-SPACE	9.27	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)	48.61	0.03

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