Development of CFD technology to support design of aircraft combustor with real configuration.
JAXA Supercomputer System Annual Report April 2017-March 2018
Report Number: R17EA2117
Subject Category: Aeronautical Technology
- Responsible Representative: Takashi Yamane, Aeronautical Technology Directorate, Propulsion Research Unit
- Contact Information: Mitsumasa Makida makida.mitsumasa@jaxa.jp
- Members: Mitsumasa Makida(JAXA), Naoki Nakamura(ASIRI)
Abstract
In this research, we aim to obtain design methods for development of aircraft combustors with real configuration, which estimate dispersion of the fuel droplets, evaporation, and combustion processes.
Reference URL
N/A
Reasons for using JSS2
It is important to do parametric case study with slightly different geometry, and each case with spray and combustion needs large scale simulation. To conduct such simulation and visualization effectively, we use the super computer with high parallelization efficiency.
Achievements of the Year
In this fiscal year, we integrate real gas effect, fuel evaporation and chemical reaction model into the base solver, which enabled to simulate the distribution of fuel spray, fuel vapor and chemical reaction rate near the fuel nozzle with realistically complicated configuration.
Fig.1: Disrtibution of fuel spray, fuel vapor and reaction rate near fuel nozzle
Publications
N/A
Usage of JSS2
Computational Information
- Process Parallelization Methods: MPI
- Thread Parallelization Methods: Automatic Parallelizatio
- Number of Processes: 120
- Elapsed Time per Case: 300.00 hours
Resources Used
Fraction of Usage in Total Resources*1(%): 0.31
Details
Please refer to System Configuration of JSS2 for the system configuration and major specifications of JSS2.
| System Name | Amount of Core Time(core x hours) | Fraction of Usage*2(%) |
|---|---|---|
| SORA-MA | 2,536,622.63 | 0.33 |
| SORA-PP | 4,300.70 | 0.05 |
| SORA-LM | 0.00 | 0.00 |
| SORA-TPP | 0.00 | 0.00 |
| File System Name | Storage Assigned(GiB) | Fraction of Usage*2(%) |
|---|---|---|
| /home | 211.66 | 0.15 |
| /data | 9,391.05 | 0.17 |
| /ltmp | 1,519.10 | 0.11 |
| Archiver Name | Storage Used(TiB) | Fraction of Usage*2(%) |
|---|---|---|
| J-SPACE | 0.14 | 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 2017-March 2018