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Acoustic Liner Program for future High-bypass-ratio Aircraft engines(Development of combustor)

JAXA Supercomputer System Annual Report February 2023-January 2024

Report Number: R23EDA101C39

Subject Category: Aeronautical Technology

PDF available here

  • Responsible Representative: Kenichiro Nagai, Aeronautical Technology Directorate,Aviation Environmental Sustainability Innovation
  • Contact Information: Naoyuki Okamura(okamura.naoyuki@jaxa.jp)
  • Members: Taisuke Nambu, Hideji Saiki

Abstract

In this project, we will apply next-generation acoustic liner to combustor. To perform the numerical analysis of combustor with the acoustic liner by using HINOCA-AE which is CFD solver for aircraft engine combustors.

Reference URL

N/A

Reasons and benefits of using JAXA Supercomputer System

We have designed the combustor by using the carbon neutral fuel (ex. hydrogen). To differ from the flow field of jet fuel, we need to investigate the flow field of carbon neutral fuel on the design phase.

Achievements of the Year

Our numerical analysis is focused on the flow field of the inner combustion chamber by using carbon neutral fuel. Large Eddy Simulation (LES) was performed with the inner combustion chamber as shown in Fig.1 The time-averaged temperature field are shown in Fig.2.According to numerical analysis, we obtained results of the flow field around injector, the dilution holes and so on.

Annual Reoprt Figures for 2023

Fig.1: Computational grid around injectors

 

Annual Reoprt Figures for 2023

Fig.2: Time-averaged temperature field of inner combustion chamber

 

Publications

N/A

Usage of JSS

Computational Information

  • Process Parallelization Methods: MPI
  • Thread Parallelization Methods: OpenMP
  • Number of Processes: 1 – 926
  • Elapsed Time per Case: 240 Hour(s)

JSS3 Resources Used

 

Fraction of Usage in Total Resources*1(%): 0.20

 

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 5534413.11 0.25
TOKI-ST 258.39 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 25.79 0.02
/data and /data2 110135.58 0.68
/ssd 264.21 0.02

 

Archiver Resources
Archiver Name Storage Used
(TiB)
Fraction of Usage*2(%)
J-SPACE 1.71 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.

 

ISV Software Licenses Used

ISV Software Licenses Resources
ISV Software Licenses Used
(Hours)
Fraction of Usage*2(%)
ISV Software Licenses
(Total)
11.75 0.01

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

JAXA Supercomputer System Annual Report February 2023-January 2024