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Numerical analysis for turbo pumps

JAXA Supercomputer System Annual Report April 2019-March 2020

Report Number: R19EK2305

Subject Category: Space Technology

PDF available here

  • Responsible Representative: Masashi Okada, Project manager, H3 Project Team
  • Contact Information: Satoshi Ukai(ukai.satoshi@jaxa.jp)
  • Members: Hideyo Negishi, Satoshi Ukai, Mizuho Aotsuka

Abstract

Design evaluation using numerical simulation is carried out for technical issues of the LE-9 engine turbo pump.

Reference URL

N/A

Reasons and benefits of using JAXA Supercomputer System

In order to carry out large-scale numerical analysis of multiple cases in a short period of time.

Achievements of the Year

The analysis of forced resonance of turbine rotors has been carried out, and the results have been reflected to LE-9 turbo pump design.

Publications

– Non peer-reviewed papers

Azuma et al, “The Development Status of LE-9 Engine Turbopump for H3 Launch Vehicle”, AIAA Propulsion and Energy Forum, Indianapolis, AIAA Paper 2019-4439, August, 19-22, 2019

Usage of JSS2

Computational Information

  • Process Parallelization Methods: XPFortran
  • Thread Parallelization Methods: OpenMP
  • Number of Processes: 20 – 960
  • Elapsed Time per Case: 500 Hour(s)

Resources Used

 

Fraction of Usage in Total Resources*1(%): 2.91

 

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 26,411,763.52 3.21
SORA-PP 8,077.66 0.05
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 3,680.62 3.07
/data 16,850.50 0.29
/ltmp 2,393.54 0.20

 

Archiver Resources
Archiver Name Storage Used
(TiB)
Fraction of Usage*2(%)
J-SPACE 0.26 0.01

*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