JAXA Supercomputer System Annual Report April 2016-March 2017

Report Number: R16E0020

• Responsible Representative: Yuichi Matsuo(Aeronautical Technology Directorate, Numerical Simulation Research Unit)
• Contact Information: Yasuhiro Mizobuchi(mizo@chofu.jaxa.jp)
• Members: Taisuke Nambu, Hiroki Yao, Shogo Yasuda, Yuichi Matsuo, Yasuhiro Mizobuchi, Hiroyuki Abe, Manabu Hisida, Jin Kusaka, Akira Kikusato, Tsukasa Hori, Youichi Ogata, Yoshimitsu Kohashi, Atsusi Fujino, Shun Ito, Daichi Obinata, Jun Hashimoto, Ichiro Nakamori, Ryohei Kirihara, Mototsugu Itahashi, Takuhito Kuwabara, Yasushi Noguchi, Kazuhiro Uehara, Taisuke Kayashima, Yurina Maeda, Hiroyuki Sakai, Chikara Dodate, Shinji Nakamura, Takahiro Ishida, Daisuke Tanaka, Takayuki Hori, Ryo Uchida, Takeshi Kuramoto, Takashi Kaminaga
• Subject Category: Basic Research(Numerical analysis,Combustion)

Abstract

Development of 3D fully compressible flow simulation software based on Cartesian grid + IB method that can easily deal with moving boundaries, and incorporate automotive engine relatedsub-models on it.

Goal

Enhancement of CAE utilization in automotive engineering by developing an engine combustion simulation software that is sharable in Japan automotive research community

Objective

Construction of 3D core-software for automotive engine combustor simulation

References and Links

N/A

Use of the Supercomputer

Validation of Cartesian grid + IB method, V&V of software, Large scale simulation toward next generation computation

Necessity of the Supercomputer

Massive parametric study, Massive-parallel large scale simulation

Achievements of the Year

Simulation of spark-ignition engine process

We incorporated thesub-models that had been developed by research collaboration universities onto the flow core-software that had been developed by last fiscal year, and then achieved a SI engine process simulation from intake to exhaust.

Fig.1:SI engine process simulation

Publications

Presentations

1)Mizobuch, Y. , Development of LES solver for IC engine using Cartesian grid and immersed boundary method, Advanced Design Technology for Power Generation Engine, Busan University, Aug. 2016.

2)Nambu, T. et al., Development of IC engine simulation platform based on compressible LES and immersed boundary method, LES4IE 2016.

Computational Information

• Parallelization Methods: Hybrid Parallelization
• Process Parallelization Methods: MPI
• Thread Parallelization Methods: OpenMP
• Number of Processes: 1200
• Number of Threads per Process: 8
• Number of Nodes Used: 300
• Elapsed Time per Case (Hours): 120
• Number of Cases: 10

Resources Used

Total Amount of Virtual Cost(Yen): 58,645,973

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