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CFD analysis of wind turbine wake

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Report Number: R16E0104 Responsible Representative: Yuichi Matsuo(Aeronautical Technology Directorate, Numerical Simulation Research Unit) Contact Information: Yosuke Shinozaki(shinozaki.yosuke@ilab.eco.rcast.u-tokyo.ac.jp) Members: Keita Kimura, Yasutada Tanabe, Yuta Uemura, Yosuke Shinozaki Subject Category: Aviation(other ) Abstract In a wind farm, a distance between turbines is important from the point of view of energy recovery and turbulence intensity in a wake. And in recent years, the introduction of two-bladed wind turbines is investigated. The purpose of this study is to reveal the effect of blade number・・・<<read more>>

High Resolution Analysis of Unsteady Aerodynamics for RLG with Fast Fluid Solver FaSTAR

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Report Number: R16E0103 Responsible Representative: Yuichi Matsuo(Aeronautical Technology Directorate, Numerical Simulation Research Unit) Contact Information: Keiichi Murakami(murakei@chofu.jaxa.jp) Members: Yuki Matsui Subject Category: Basic Research(CFD) Abstract In order to obtain a low computation cost and stable high resolution solution for the aircraft Rudimentary Landing Gear (RLG), the CFD solver FaSTAR developed by JAXA is used as the central difference base, and in the place where the calculation is unstable, the numerical viscosity of the upwind difference To extend. As a result,・・・<<read more>>

Research on numerical simulation of combustion phenomena

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Report Number: R16E0102 Responsible Representative: Yuichi Matsuo(Aeronautical Technology Directorate, Numerical Simulation Research Unit) Contact Information: Himeko Yamamoto(himeko@toki.waseda.jp) Members: Himeko Yamamoto Subject Category: Basic Research(Numerical analysis) Abstract For the development of a jet engine combustor with high environmental compatibility, we develop the combustion calculation code that can capture the complex combustion field and the pressure propagation with practical calculation cost. In addition, a verification calculation of this calculation code is conducted on the hydrogen jet lifted flame. Goal For the development・・・<<read more>>

Numerical calculation of Green engine (study of ultrahigh-temperature low NOx emission combustor technology) filming-type airblast atomizing process

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Report Number: R16E0101 Responsible Representative: Toshiya Nakamura(Aeronautical Technology Directorate, Next Generation Aeronautical Innovation Hub Center) Contact Information: Kazuaki Matsuura(matsuura.kazuaki@jaxa.jp) Members: Kazuaki Matsuura, Mitsumasa Makida, Hideshi Yamada, Yoji Kurosawa, Naoki Nakamura, Jun Iino, Huilai Zhang, Shunya Uesaka, Tomoyuki Iwasaki, Ryota Torikai Subject Category: Aviation(Aircraft engine) Abstract Experimental study of planner filming-type airblast atomizer shows the clear effects of the ambient pressure and the vane angles on atomization characteristics. Since the atomization process occurs in the narrow region which is vicinity of・・・<<read more>>

Basic research for system integration of silent supersonic airplane technologies

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Report Number: R16E0100 Responsible Representative: Yoshikazu Makino(Next Generation Aeronautical Innovation Hub Center, Aeronautical Technology Directorate) Contact Information: Yoshikazu Makino(makino@chofu.jaxa.jp) Members: Yuki Kishi, Shinya Kitazaki, Jun Yamamoto, Go Iwamoto, Masahiro Kanazaki, Yoshikazu Makino, Hiroaki Fujiwara, Hideyuki Obata, Yohei Kasuga, Masaya Miyazaki Subject Category: Aviation(Aircraft) Abstract The system integration design technologies for achieving low sonic-boom, low aerodynamic drag, low landing and take-off noise, and light weight simultaneously are the key technologies for future supersonic airplanes. JAXA is promoting the R&D for these・・・<<read more>>