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Improvement of numerical analysis for internal flow with complicated configuration inside aero-engine

JAXA Supercomputer System Annual Report February 2022-January 2023

Report Number: R22EA2120

Subject Category: Aeronautical Technology

PDF available here

  • 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: Kenji Hayashi, Junichi Kazawa, Takahisa Kohno, Taisuke Nambu, Hiroki Ugajin, Kanako Yasue

Abstract

Unstructured-grid flow solver FaSTAR-Move-AE are applied to aero-engine analysis with complicated configuration. Through the calculation, these programs are tested and investigated for the deficiency and future issue for improvement of accuracy.

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

To validate the DES/LES analysis function of FaSTAR-Move-AE, we performed DES/LES analyses of a simple linear cascade and a centrifugal compressor with complex geometry. We confirmed the validity of the analysis.

Annual Reoprt Figures for 2022

Fig.1: Analysis result of a linear cascade: vorticity distribution

 

Annual Reoprt Figures for 2022

Fig.2: Comparison with experiment and analysis results in total pressure loss distribution of the wake.

 

Publications

N/A

Usage of JSS

Computational Information

  • Process Parallelization Methods: MPI
  • Thread Parallelization Methods: N/A
  • Number of Processes: 32 – 2048
  • Elapsed Time per Case: 72 Hour(s)

JSS3 Resources Used

 

Fraction of Usage in Total Resources*1(%): 0.09

 

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 1506505.19 0.07
TOKI-ST 261952.40 0.26
TOKI-GP 0.00 0.00
TOKI-XM 0.00 0.00
TOKI-LM 6531.77 0.44
TOKI-TST 0.59 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 442.05 0.40
/data and /data2 81742.83 0.63
/ssd 2774.81 0.38

 

Archiver Resources
Archiver Name Storage Used
(TiB)
Fraction of Usage*2(%)
J-SPACE 29.62 0.13

*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)
1056.93 0.74

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

JAXA Supercomputer System Annual Report February 2022-January 2023