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Next generation jet engine technology – development of high efficiency compressor design tecnology and aerodynamic performance prediciton –

JAXA Supercomputer System Annual Report April 2019-March 2020

Report Number: R19EA0711

Subject Category: Aeronautical Technology

PDF available here

  • Responsible Representative: Tatsuya Ishii, Aeronautical Technology Directorate, Propulsion Research Unit
  • Contact Information: Junichi Kazawa, Aeronautical Technology Directorate, Propulsion Research Unit(kazawa.junichi@jaxa.jp)
  • Members: Junichi Kazawa, Yuntae Lee, Takafumi Kanayama, Kenshi Yamashita

Abstract

We will develop aerodynamic performance improvement technology and high precision aerodynamic performance prediction technology for multistage-compressore assuming an increase in relative tip clearance, corresponding to a small core engine applied to an ultra-high bypass ratio engine.

Reference URL

N/A

Reasons and benefits of using JAXA Supercomputer System

The number of cases of aerodynamic performance prediction of a multi-stage compressor will be very large for satisfactory results. So we can not be calculated in a realistic time using anything other than JSS2.

Achievements of the Year

The analysis including non-design points was performed for the two-stage compressor rig, and the accuracy of the numerical analysis program was confirmed. In addition, the effect of enlarging the operating range by casing treatment was confirmed using a overset grid method.

Publications

N/A

Usage of JSS2

Computational Information

  • Process Parallelization Methods: MPI
  • Thread Parallelization Methods: Automatic Parallelization
  • Number of Processes: 64 – 128
  • Elapsed Time per Case: 100 Hour(s)

Resources Used

 

Fraction of Usage in Total Resources*1(%): 0.89

 

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 4,029,838.62 0.49
SORA-PP 1,230,490.53 7.97
SORA-LM 36.46 0.02
SORA-TPP 0.00 0.00

 

File System Resources
File System Name Storage Assigned
(GiB)
Fraction of Usage*2(%)
/home 22.75 0.02
/data 11,773.37 0.20
/ltmp 4,660.09 0.40

 

Archiver Resources
Archiver Name Storage Used
(TiB)
Fraction of Usage*2(%)
J-SPACE 1.83 0.05

*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