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Digital tuft; measurement system of surface phisycal quantity for aircraft

JAXA Supercomputer System Annual Report April 2020-March 2021

Report Number: R20EDA102F00

Subject Category: Aeronautical Technology

PDF available here

  • Responsible Representative: Masaru Naruoka, Aeronautical Technology Directorate, Flight Research Unit
  • Contact Information: Masaru Naruoka(naruoka.masaru@jaxa.jp)
  • Members: Masaru Naruoka, Hiroya Toriida

Abstract

Development of measurement system of surface phisycal quantity for aircraft

Reference URL

N/A

Reasons and benefits of using JAXA Supercomputer System

The puropose is to perform CFD analyses for estimation of aerodynamic penalty of aircraft equipped with the developed sensor system. The advantage of JSS2 is its speed and preciseness of calculation.

Achievements of the Year

The comparisons of the calculation results show that the grid density does not significantly affect the flow around the additional sensor susyem equipped on the surface of a target aircraft.

Annual Reoprt Figures for 2020

Fig.1: Comparison of Cp around sensor systems bewteen grid density

 

Publications

N/A

Usage of JSS

Computational Information

  • Process Parallelization Methods: MPI
  • Thread Parallelization Methods: N/A
  • Number of Processes: 512
  • Elapsed Time per Case: 5 Hour(s)

Resources Used(JSS2)

 

Fraction of Usage in Total Resources*1(%): 0.11

 

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 654,815.43 0.12
SORA-PP 1,324.87 0.01
SORA-LM 42.14 0.02
SORA-TPP 0.00 0.00

 

File System Resources
File System Name Storage Assigned
(GiB)
Fraction of Usage*2(%)
/home 3.58 0.00
/data 1,244.55 0.02
/ltmp 732.42 0.06

 

Archiver Resources
Archiver Name Storage Used
(TiB)
Fraction of Usage*2(%)
J-SPACE 1.36 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.

 

Resources Used(JSS3)

 

Fraction of Usage in Total Resources*1(%): 0.00

 

Details

Please refer to System Configuration of JSS3 for the system configuration and major specifications of JSS3.

Computational Resources
System Name Amount of Core Time
(core x hours)
Fraction of Usage*2(%)
TOKI-SORA 0.00 0.00
TOKI-RURI 0.00 0.00
TOKI-TRURI 0.00 0.00

 

File System Resources
File System Name Storage Assigned
(GiB)
Fraction of Usage*2(%)
/home 3.58 0.00
/data 1,244.55 0.02
/ssd 35.76 0.02

 

Archiver Resources
Archiver Name Storage Used
(TiB)
Fraction of Usage*2(%)
J-SPACE 1.36 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.

JAXA Supercomputer System Annual Report April 2020-March 2021


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Language / 言語

"Annual Report" available

How to use JSS3

To use JSS3, please refer to "How to use JSS3" page .

Location

Chofu Aerospace Center
7-44-1 Jindaiji Higashi-machi, Chofu-shi, Tokyo