Application of the Cartesian grid and an IB method to the analysis of aircraft engine combustors

JAXA Supercomputer System Annual Report February 2023-January 2024

Report Number: R23EDA102G31

Subject Category: Aeronautical Technology

Responsible Representative: Daisuke Nambu,
Contact Information: Taisuke Nambu, Aviation Technology Directorate, Aircraft Lifecycle Innovation Hub(nambu.taisuke@jaxa.jp)
Members: Dan Hori, Manabu Hisida, Ryohei Kirihara, Takuya Karatsu, Takuhito Kuwabara, Yasuhiro Mizobuchi, Taisuke Nambu, Kei Shimura, Hiroki Yao, Satoshi Atsuchi, Naoki Tani

Abstract

Enabling to conduct numerical analysis of thermal fluid phenomena within aircraft engine combustors using HINOCA-AE ensuring reasonable TAT (Turn Around Time) and accuracy, the potential for expanding the application of numerical analysis to combustor design is explored.

Reference URL

N/A

Reasons and benefits of using JAXA Supercomputer System

Massive-parallel large scale simulation, Large number of simulations for software validation

Achievements of the Year

Combustion analysis using a solver employing orthogonal grids and the Immersed Boundary method was conducted for a realistic scale combustor. Challenges for achieving practical CFD simulations for combustor design with reasonable TAT and accuracy were extracted.

Fig.1: Time averaged fuel mole fraction

Fig.2: Time averaged CO2 mole fraction

Fig.3: Time averaged H2O mole fraction

Fig.4: Time averaged total temperature(Non-dimensional)

Publications

N/A

Usage of JSS

Computational Information

Process Parallelization Methods: MPI
Thread Parallelization Methods: OpenMP
Number of Processes: 1 – 5666
Elapsed Time per Case: 350 Hour(s)

JSS3 Resources Used

Fraction of Usage in Total Resources*1(%): 1.59

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	42834648.48	1.93
TOKI-ST	112256.24	0.12
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	1972.62	1.64
/data and /data2	154185.10	0.95
/ssd	37558.02	3.55

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)	110.66	0.05

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