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Development of fluid analysis system for turbomachinery using CFD software named UPACS

JAXA Supercomputer System Annual Report April 2019-March 2020

Report Number: R19EH6901

Subject Category: Common Business

PDF available here

  • Responsible Representative: Hiroyuki Iwamoto, Business Development and Industrial Relations Department
  • Contact Information: Mitsumasa Makida, Aeronautical Technology Directorate, Propulsion Research Unit(makida.mitsumasa@jaxa.jp)
  • Members: Mitsumasa Makida, Shunji Enomoto, Ryoji Takaki, Junichi Kazawa, Kazuomi Yamamoto, Yosuke Matsumura, Yoshinobu Yamade, Hiroshi Koizumi, Masayuki Kakehi

Abstract

For turbo machines including centrifugal compressors,a software package will be developed to analyze flow phenomena in more detail by utilizing JAXA’s fluid analysis technologies.

Reference URL

N/A

Reasons and benefits of using JAXA Supercomputer System

To analyze the detailed flow field around turbo machnes, it is necessary to confirm the prediction accuracy of the analysis by DES. For this purpose, a large-scale analysis will be performed in various flow conditions, so it cannot be performed without JSS2.

Achievements of the Year

It was confirmed that the flow field around the centrifugal compressor could be analyzed by DES using UPACS. In addition, we analyzedthe flow field around the centrifugal compressor with up to 800 million grids and confirmed that there was no problem with parallelization performance of UPACS.

Annual Reoprt Figures for 2019

Fig.1: Flow Fields around the centrifugal compressor (Entropy Distribution, left:RANS, right:DES)

 

Annual Reoprt Figures for 2019

Fig.2: parallelization performance of UPACS

 

Publications

N/A

Usage of JSS2

Computational Information

  • Process Parallelization Methods: MPI
  • Thread Parallelization Methods: Automatic Parallelization
  • Number of Processes: 64 – 1024
  • Elapsed Time per Case: 12 Hour(s)

Resources Used

 

Fraction of Usage in Total Resources*1(%): 0.03

 

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 91,954.74 0.01
SORA-PP 0.00 0.00
SORA-LM 0.00 0.00
SORA-TPP 0.00 0.00

 

File System Resources
File System Name Storage Assigned
(GiB)
Fraction of Usage*2(%)
/home 128.60 0.11
/data 14,937.85 0.26
/ltmp 3,110.91 0.26

 

Archiver Resources
Archiver Name Storage Used
(TiB)
Fraction of Usage*2(%)
J-SPACE 119.34 3.00

*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.

JAXA Supercomputer System Annual Report April 2019-March 2020