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

JAXA Supercomputer System Annual Report February 2024-January 2025

Report Number: R24EDA101C39

Subject Category: Aeronautical Technology

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 hydrogen fuel. To differ from the flow field of jet fuel, we need to investigate the flow field of hydrogen 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 hydrogen 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. We confirmed the numerical analysis of exit gas temperature are consistent with the experimental results.

Fig.1: Computational grid around injectors

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 - 1534
Elapsed Time per Case: 240 Hour(s)

JSS3 Resources Used

Fraction of Usage in Total Resources*1(%): 0.34

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	9019793.23	0.41
TOKI-ST	1582.17	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	31.22	0.02
/data and /data2	112715.11	0.54
/ssd	278.89	0.01

Archiver Resources
Archiver Name	Storage Used (TiB)	Fraction of Usage*2(%)
J-SPACE	1.80	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)	16.29	0.01

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