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Fundamental numerical analysis on propagation of detonation

JAXA Supercomputer System Annual Report February 2023-January 2024

Report Number: R23EACA45

Subject Category: JSS Inter-University Research

PDF available here

  • Responsible Representative: Toshiharu Mizukaki, Professor, Tokai University
  • Contact Information: Toshiharu Mizukaki, Professor, Tokai University(mzkk@tokai.ac.jp)
  • Members: Toshiharu Mizukaki, Faming Wang

Abstract

For fundamental study on propagation of detonation waves inside rotating detonatio engines, fundamental numerical analysis using CHARIOT was done. In FY2022, 2D numerical analysis on propagation of detonation waves inside a rotating detonation engine with C2H4/O2 and H2/AIR mixture gases have been calucurated.

Reference URL

Please refer to http://www.mzkklab.com .

Reasons and benefits of using JAXA Supercomputer System

Even for fundamental numerical analysisi on propagation of detonation waves, huge computational resources and high-performance CPU must be needed due to high-speed propagation and numerous erementaly reactions. JAXA’s JSS3 has enough capability to carry out numerical analysis for detonation research. Therefore, our reserach need to perform the analysis with JSS3.

Achievements of the Year

Pressure distribution inside RDE combuster.

Temperature distribution inside RDE combuster.

The relation between equivalent ratio and peak pressure behind detonation wave.

The relation between equivalent ratio and peak temperature behind detonation wave.

Annual Reoprt Figures for 2023

Fig.1: Pressure distribution inside RDE combuster.

 

Annual Reoprt Figures for 2023

Fig.2: Temperature distribution inside RDE combuster.

 

Annual Reoprt Figures for 2023

Fig.3: The relation between equivalent ratio and peak pressure behind detonation wave.

 

Annual Reoprt Figures for 2023

Fig.4: The relation between equivalent ratio and peak temperature behind detonation wave.

 

Publications

N/A

Usage of JSS

Computational Information

  • Process Parallelization Methods: MPI
  • Thread Parallelization Methods: OpenMP
  • Number of Processes: 20 – 100
  • Elapsed Time per Case: 217922.4 Hour(s)

JSS3 Resources Used

 

Fraction of Usage in Total Resources*1(%): 0.05

 

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 1409033.60 0.06
TOKI-ST 0.00 0.00
TOKI-GP 0.00 0.00
TOKI-XM 0.00 0.00
TOKI-LM 0.00 0.00
TOKI-TST 0.00 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 245.00 0.20
/data and /data2 5070.00 0.03
/ssd 0.00 0.00

 

Archiver Resources
Archiver Name Storage Used
(TiB)
Fraction of Usage*2(%)
J-SPACE 0.00 0.00

*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.

 

ISV Software Licenses Used

ISV Software Licenses Resources
ISV Software Licenses Used
(Hours)
Fraction of Usage*2(%)
ISV Software Licenses
(Total)
0.00 0.00

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

JAXA Supercomputer System Annual Report February 2023-January 2024