Effects of Free-Stream Characteristics on Spatio-Temporal Structures of Turbulent Heat Transfer

• Project/Area Number: 19760134
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Thermal engineering
• Research Institution: Nagoya Institute of Technology
• Principal Investigator: HOURA Tomoya Nagoya Institute of Technology, 工学研究科, 助教 (00324484)
• Project Period (FY): 2007 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥3,390,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥390,000); Fiscal Year 2008: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2007: ¥1,700,000 (Direct Cost: ¥1,700,000)
• Keywords: 強制対流 / 乱流境界層 / 熱伝達 / 熱工学 / 流体工学 / 主流乱れ / 圧力勾配

Research Abstract

熱や物質の移流拡散現象は,そこに流入する流れ場の特性により大きく影響を受ける。熱交換器の温度効率,燃焼器の熱効率や燃焼効率の向上,有害排出物質の低減のためには,この主流の特性が,乱流熱伝達に及ぼす影響を明らかにする必要がある。本研究では,独自の速度・温度変動の多点同時計測システムにより,圧力勾配や主流乱れといった主流の特性が,乱流熱伝達の時空間構造に及ぼす影響を明らかにした。

Research Products

• [Journal Article] Spatiotemporal turbulent structures of thermal boundary layer subjected to nonequilibrium adverse pressure gradient (2008)
  • Author(s): T. Houra and Y. Nagano
  • Journal Title: Int. J. Heat and Fluid Flow Vol. 29 Pages: 591-601
  • Peer Reviewed
• [Journal Article] Spatio-temporal turbulent structures of thermal boundary layer subjectec to non-equilibrium adverse pressure gradient (2008)
  • Author(s): Houra, T. and Nagano, Y.
  • Journal Title: Int. J. Heat and Fluid Flow 29 Pages: 591-601
  • Peer Reviewed
• [Journal Article] Spatio-temporal turbulent structures of thermal boundary layer subjected to non-equilibrium adverse pressure gradient (2008)
  • Author(s): Houra, T. and Nagano, Y.
  • Journal Title: Int. J. Heat and Fluid Flow (掲載決定)
  • Peer Reviewed
• [Presentation] 加熱された2次元丘により撹乱される乱流境界層の熱輸送特性 (2009)
  • Author(s): 保浦知也,田川正人,長野靖尚
  • Organizer: 日本伝熱学会東海支部 支部講演会
  • Place of Presentation: 豊田工業大学
  • Year and Date: 2009-02-06
• [Presentation] 加熱された2次元丘により撹乱される乱流境界層の熱輸送特性 (2009)
  • Author(s): 保浦知也, 田川正人, 長野靖尚
  • Organizer: 日本伝熱学会東海支部支部講演
  • Place of Presentation: 豊田工業大学
  • Year and Date: 2009-02-06
• [Presentation] Turbulent flow and dispersion from a point source over a two-dimensional hill (2009)
  • Author(s): T. Houra, M. Tagawa and Y. Nagano
  • Organizer: Sixth International Symposium on Turbulence, Heat and Mass Transfer(THMT-09)
  • Place of Presentation: Rome, Italy(発表予定)
• [Presentation] Spatio-temporal turbulent structures of thermal boundary layer subjected to non-equilibrium adverse pressure gradient" (2007)
  • Author(s): T. Houra, S. Shakouchi and Y. Nagano
  • Organizer: 5th International Symposium on Turbulence and Shear Flow Phenomena(TSFP-5)
  • Place of Presentation: TU Munich, Germany
• [Presentation] Spatio-temporal turbulent structures of thermal boundary layer subjected to non-equilibrium adverse pressure gradient (2007)
  • Author(s): Houra, T., Shakouchi, S. and Nagano, Y.
  • Organizer: 5th International Symposium on Turbulence and Shear Flow Phenomena
  • Place of Presentation: TU Munich, Germany