Research on the performance improvement of practical aero-engine fuel injector
JAXA Supercomputer System Annual Report February 2022-January 2023
Report Number: R22EBA30200
Subject Category: Aeronautical Technology
- Responsible Representative: Takashi Yamane, Aeronautical Technology Directorate, En-Core Project team
- Contact Information: Kazuaki Matsuura, Japan Aerospace Exploration Agency, Aeronautical Technology Directorate, En-Core Project team(matsuura.kazuaki@jaxa.jp)
- Members: Kazuaki Matsuura, Kinya Saito, Takahiro Inagawa, Jun Iino, Kunihiko Sakata, Aya Yoshida, Kodai Kato, Mitsumasa Makida, Naoki Nakamura
Abstract
Our study is focusing on the improvement of fuel injector performance. Numerical simulations on air-flow, atomization, fuel/air mixing, combustion, and thermal analysis on such injectors in realistic shapes are of our interest.
Reference URL
N/A
Reasons and benefits of using JAXA Supercomputer System
In order to analyze air-flow, atomization, fuel/air mixing, combustion, and thermal analysis of a realistic shape fuel nozzle precisely, we conduct the flamelet combustion analysis using large size of database, and the use of super computer is necessary.
Achievements of the Year
Numerical simulations for an annular combustor were performed in order to investigate its combustion instabilities.
Two cases were studied: Case I with all of twelve fuel injectors in the same design (Design A) , and Case II with six of fuel injectors in Design A and the rest in Design B.
The difference between the two cases in terms of characteristics of combustion instability was successfully captured.
Publications
N/A
Usage of JSS
Computational Information
- Process Parallelization Methods: MPI
- Thread Parallelization Methods: N/A
- Number of Processes: 2100
- Elapsed Time per Case: 120 Hour(s)
JSS3 Resources Used
Fraction of Usage in Total Resources*1(%): 2.89
Details
Please refer to System Configuration of JSS3 for the system configuration and major specifications of JSS3.
System Name | CPU Resources Used(Core x Hours) | Fraction of Usage*2(%) |
---|---|---|
TOKI-SORA | 77773063.81 | 3.39 |
TOKI-ST | 192921.96 | 0.19 |
TOKI-GP | 0.00 | 0.00 |
TOKI-XM | 0.00 | 0.00 |
TOKI-LM | 23480.13 | 1.57 |
TOKI-TST | 2366.29 | 0.06 |
TOKI-TGP | 0.00 | 0.00 |
TOKI-TLM | 0.00 | 0.00 |
File System Name | Storage Assigned(GiB) | Fraction of Usage*2(%) |
---|---|---|
/home | 266.15 | 0.24 |
/data and /data2 | 187357.33 | 1.44 |
/ssd | 299.17 | 0.04 |
Archiver Name | Storage Used(TiB) | Fraction of Usage*2(%) |
---|---|---|
J-SPACE | 0.09 | 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 Used(Hours) | Fraction of Usage*2(%) | |
---|---|---|
ISV Software Licenses(Total) | 3419.09 | 2.38 |
*2: Fraction of Usage:Percentage of usage relative to each resource used in one year.
JAXA Supercomputer System Annual Report February 2022-January 2023