Computational analysis of compound helicopter
JAXA Supercomputer System Annual Report February 2021-January 2022
Report Number: R21ETET08
Subject Category: Skills Acquisition System
- Responsible Representative: Yoshikazu Makino, Aeronautical Technology Directorate, Aviation Systems Research Unit
- Contact Information: Takeshi Akasaka, Kanazawa Institute of Technology(akasaka@neptune.kanazawa-it.ac.jp)
- Members: Yusuke Hamamoto, Hideaki Sugawara, Yasutada Tanabe
Abstract
The purpose of this study is to investigate aerodynamic interaction between the rotor and the winged-body of a compound helicopter using CFD analysis.
Reference URL
N/A
Reasons and benefits of using JAXA Supercomputer System
The analysis of the aerodynamic interaction between the rotor and the winged-body using the helicopter aerodynamic analysis code rFlow3D is computationally intensive.
Achievements of the Year
The effect of advance ratio on the aerodynamic interaction between main rotor and winged-body was investigated through numerical simulations. Figure 1 shows the computational grid. The rotation of the blades of main rotor were simulated by moving overlapped grid. This simulation was performed using rFlow3D which is deveroped by JAXA. Figure 2 shows the overview of flow field of the rotor and winged-body. As a result, the total aerodynamic performance of the compound helicopter reduced significantly at higher advance ratios.
Publications
– Oral Presentations
1)Hamamoto, Y., Akasaka, T., Tanabe, Y., Sugawara, H., Aerodynamic Interaction Between a Rotor and a Wing on Compound Helicopter in Forward Flights, the 53rd Fluid Dynamics Conference / the 39th Aerospace Numerical Simulation Symposium, Jun. 2021.
2)Hamamoto, Y., Akasaka, T., Tanabe, Y., Sugawara, H .,The Influence of Rotor/Wing Aerodynamic Interaction of Compound Helicopter in Forward Flights on Rotor,the 59th Aircraft Symposium, Dec. 2021.
Usage of JSS
Computational Information
- Process Parallelization Methods: N/A
- Thread Parallelization Methods: OpenMP
- Number of Processes: 1
- Elapsed Time per Case: 168 Hour(s)
JSS3 Resources Used
Fraction of Usage in Total Resources*1(%): 0.62
Details
Please refer to System Configuration of JSS3 for the system configuration and major specifications of JSS3.
System Name | CPU Resources Used(Core x Hours) | Fraction of Usage*2(%) |
---|---|---|
TOKI-SORA | 11443.28 | 0.00 |
TOKI-ST | 4315909.18 | 5.32 |
TOKI-GP | 0.00 | 0.00 |
TOKI-XM | 0.00 | 0.00 |
TOKI-LM | 0.00 | 0.00 |
TOKI-TST | 8.32 | 0.00 |
TOKI-TGP | 0.00 | 0.00 |
TOKI-TLM | 0.00 | 0.00 |
File System Name | Storage Assigned(GiB) | Fraction of Usage*2(%) |
---|---|---|
/home | 44.18 | 0.04 |
/data and /data2 | 18454.51 | 0.20 |
/ssd | 450.99 | 0.12 |
Archiver Name | Storage Used(TiB) | Fraction of Usage*2(%) |
---|---|---|
J-SPACE | 0.00 | 0.00 |
*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 Used(Hours) | Fraction of Usage*2(%) | |
---|---|---|
ISV Software Licenses(Total) | 210.96 | 0.15 |
*2: Fraction of Usage:Percentage of usage relative to each resource used in one year.
JAXA Supercomputer System Annual Report February 2021-January 2022