Efficiency improvement of aerodynamic model building and comparison.

JAXA Supercomputer System Annual Report February 2023-January 2024

Report Number: R23EDA201N05

Subject Category: Aeronautical Technology

Responsible Representative: Yasuhiro Mizobuchi, Aircraft Lifecycle Innovation Hub, Aviation Technology Directorate
Contact Information: Makoto Ueno, Aircraft Lifecycle Innovation Hub, Aviation Technology Directorate(ueno.makoto@jaxa.jp)
Members: Makoto Ueno, Kento Yamada, Chigusa Hamada, Takahiro Yamamoto

Abstract

The air flow rate in the engine nacelle is adjusted using annular plugs placed in the nacelle to evaluate the effect of the air flow rate in the engine nacelle on the aerodynamic characteristics of the aircraft.

Reference URL

N/A

Reasons and benefits of using JAXA Supercomputer System

It is necessary to perform CFD computation including flow around a whole aircraft because it requires highly parallelized computation. Additionally, the JSS3 was chosen because the FaSTAR CFD solver is optimized, as well.

Achievements of the Year

Because we did not perform any computation using the JSS3 in this year, we have no new results to show.

Publications

– Peer-reviewed papers

Numerical Study on Variation in Drag Difference by Adding Annular Plug into Flow-Through Nacelle with Integrated Configuration

Usage of JSS

Computational Information

Process Parallelization Methods: MPI
Thread Parallelization Methods: N/A
Number of Processes: 25
Elapsed Time per Case: 12.5 Hour(s)

JSS3 Resources Used

Fraction of Usage in Total Resources*1(%): 0.03

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	732797.15	0.03
TOKI-ST	4886.66	0.01
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	603.54	0.50
/data and /data2	116642.85	0.72
/ssd	0.00	0.00

Archiver Resources
Archiver Name	Storage Used (TiB)	Fraction of Usage*2(%)
J-SPACE	30.29	0.11

*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)	91.10	0.04

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