JAXA Supercomputer System Annual Report April 2016-March 2017

Report Number: R16E0032

• Responsible Representative: Takeshi Ito(Aeronautical Technology Directorate, Next Generation Aeronautical Innovation Hub Center)
• Contact Information: Takashi Ishida(ishida.takashi@jaxa.jp)
• Members: Hamidreza Kheirandish, Keiji Ueshima, Atsushi Hashimoto, Takashi Ishida, Hideaki Sugawara, Takahiro Yamamoto
• Subject Category: Basic Research(Numerical analysis,Grid generation)

Abstract

In this research, we develop a common fundamental aerodynamic analysis tool by extending FaSTAR-code to be able to handle fluid-structure interaction problems aimed for establishing the technical basis which accelerate the development of civil airplanes.

Goal

In this research, we develop a common fundamental aerodynamic analysis tool aimed for establishing the technical basis which accelerate the development of civil airplanes.

Objective

In this research, we extend FaSTAR-code to be able to handle fluid-structure interaction and conduct validation analysis.

References and Links

Please refer 'Applied fundamental technology | Science & Basic Tech. - Aeronautical Science and Basic Technology Research | Aeronautical Technology Directorate'.

Use of the Supercomputer

Computer for large-scale unsteady flow simulation

Necessity of the Supercomputer

JSS is necessary to complete numerical simulations of unsteady phenomenon and understand it in short time span .

Achievements of the Year

We have extended FaSTAR-code to be able to handle fluid-structure interaction and conducted simulations of the delta-wing fin buffet for the validation. Our numerical results reproduced the unsteady phenomenon that vortex breakdown and disturbed flow affect and induce the vibration of the tail wing. In addition, we confirmed that the tail wing vibrates with a primary mode and we can evaluate the effect of the position of tail wing qualitatively.

Fig.1:Numerical results of fin buffet

Fig.2:Comparison of experimental and numerical results

Publications

N/A

Computational Information

• Parallelization Methods: Process Parallelization
• Process Parallelization Methods: MPI
• Thread Parallelization Methods: n/a
• Number of Processes: 1024
• Number of Threads per Process: 1
• Number of Nodes Used: 32
• Elapsed Time per Case (Hours): 48
• Number of Cases: 10

Resources Used

Total Amount of Virtual Cost(Yen): 3,961,189

Breakdown List by Resources

Note: Virtual Cost=amount of cost, using the unit price list of JAXA Facility Utilization program(2016)

JAXA Supercomputer System Annual Report April 2016-March 2017