Characteristics of thermal energy transfer governed by molecular-scale structure in polymer liquids and soft matters

• Project/Area Number: 24560218
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Thermal engineering
• Research Institution: Tohoku University
• Principal Investigator: OHARA Taku 東北大学, 流体科学研究所, 教授 (40211833)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000); Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2012: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
• Keywords: 熱工学 / 分子伝熱 / 界面熱抵抗 / ポリマー液体 / ソフトマター / 構造 / 熱輸送 / 液体 / ポリマー / 固液界面 / 固体表面

Outline of Final Research Achievements

The aim of this study is to clarify anomalous characteristics of thermal energy transfer in polymer liquids and soft matters focusing on their nonuniform and anisotropic structures. Interfaces of linear chain alkane liquids and lipid bilayer membranes were selected for materials analyzed as the liquid and soft matter. Some new findings such as an oscillatory distribution of thermal conductivity in the layered region of the liquid in the vicinity of a solid surface and the fact that thermal boundary resistance between the two monolayers of a lipid bilayer is significantly influenced by species of lipid were obtained. Based on these findings, the relation between the molecular-scale structure and thermal energy transport characteristics was discussed.

Research Products

• [Journal Article] Structure and transport properties of liquid alkanes in the vicinity of α-quartz surfaces (2014)
  • Author(s): Hari Krishna Chilukoti, Gota Kikugawa, Taku Ohara
  • Journal Title: International Journal of Heat and Mass Transfer Volume: 79 Pages: 846-857
  • DOI: 10.1016/j.ijheatmasstransfer.2014.08.089
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Investigation of thermal resistance and heat conduction at α-quartz-liquid alkane interfaces using nonequilibrium molecular dynamics simulations (2014)
  • Author(s): Hari Krishna Chilukoti, Gota Kikugawa, Masahiko Shibahara, Taku Ohara
  • Journal Title: Proc. 15th International Heat Transfer Conference Volume: -
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Structure and transport properties at the liquid-vapor interfaces of binary n-alkane mixtures (2014)
  • Author(s): Hari Krishna Chilukoti, Gota Kikugawa, Taku Ohara
  • Journal Title: Proc. 25th International Symposium on Transport Phenomena Volume: -
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Thermal resistance between nano-structured surfaces and liquids (2014)
  • Author(s): Taku Ohara, Masahiko Shibahara, Gota Kikugawa, Chilukoti Hari Krishna
  • Journal Title: Proc. 14th International Symposium on Advanced Fluid Information Volume: -
• [Journal Article] Thermal Transport in Lipid Bilayer Membranes (2014)
  • Author(s): Taku Ohara, Takeo Nakano, Gota Kikugawa
  • Journal Title: Proc. 11th International Conference on Flow Dynamics Volume: -
• [Journal Article] Investigation of interfacial properties at alpha-quartz/alkane interfaces using molecular dynamics simulations (2013)
  • Author(s): Hari Krishna Chilukoti, Gota Kikugawa and Taku Ohara
  • Journal Title: International Journal of Advanced Research in Engineering & Technology Volume: 4 Pages: 68-76
  • Peer Reviewed
• [Journal Article] Molecular heat transfer in lipid bilayers with symmetric and asymmetric tail chains (2013)
  • Author(s): Takeo Nakano, Gota Kikugawa and Taku Ohara
  • Journal Title: ASME Journal of Heat Transfer Volume: 135 Issue: 6 Pages: 61301-61301
  • DOI: 10.1115/1.4023572
  • Peer Reviewed
• [Journal Article] Investigation of Interfacial Properties at α-Quartz/Alkane Interfaces Using Molecular Dynamics Simulations (2013)
  • Author(s): Hari Krishna Chikukoti, Gota Kikugawa and Taku Ohara
  • Journal Title: International Journal of Advanced Research in Engineering & Technology Volume: 4
  • Peer Reviewed
• [Journal Article] Molecular Heat Transfer in Lipid Bilayers and Effect of Alkyl Chain Length (2013)
  • Author(s): Takeo Nakano, Gota Kikugawa and Taku Ohara
  • Journal Title: ASME Journal of Heat Transfer Volume: 135
  • Peer Reviewed
• [Journal Article] A Molecular Dynamics Study on Transport Properties and Structure at the Liquid-Vapor Interfaces of Alkanes (2013)
  • Author(s): Hari Krishna Chikukoti, Gota Kikugawa and Taku Ohara
  • Journal Title: International Journal of Heat and Mass Transfer Volume: 59 Pages: 144-154
  • DOI: 10.1016/j.ijheatmasstransfer.2012.12.015
  • Peer Reviewed
• [Presentation] Local thermal conductivity of liquid alkane in the solid-liquid interface region (2014)
  • Author(s): Hari Krishna Chilukoti, Gota Kikugawa, Taku Ohara
  • Organizer: 日本機械学会熱工学コンファレンス2014
  • Place of Presentation: 東京、芝浦工業大学豊洲キャンパス
  • Year and Date: 2014-11-09
• [Presentation] Structure and transport properties at the liquid-vapor interfaces of binary n-alkane mixtures (2014)
  • Author(s): Hari Krishna Chilukoti, Gota Kikugawa, Taku Ohara
  • Organizer: 25th International Symposium on Transport Phenomena
  • Place of Presentation: Tailand, Krabi
  • Year and Date: 2014-11-05
• [Presentation] Thermal transport in lipid bilayer membranes (2014)
  • Author(s): Taku Ohara, Takeo Nakano and Gota Kikugawa
  • Organizer: 11th International Conference on Flow Dynamics
  • Place of Presentation: 仙台、仙台国際センター
  • Year and Date: 2014-10-10
  • Invited
• [Presentation] Molecular dynamics study on intrinsic structure and molecular migration at liquid-vapor interfaces of alkanes (2014)
  • Author(s): Hari Krishna Chilukoti, Gota Kikugawa, Taku Ohara
  • Organizer: 日本流体力学会年会2014
  • Place of Presentation: 仙台、東北大学川内北キャンパス
  • Year and Date: 2014-09-16
• [Presentation] Investigation of thermal resistance and heat conduction at α-quartz-liquid alkane interfaces using nonequilibrium molecular dynamics simulations (2014)
  • Author(s): Hari Krishna Chilukoti, Gota Kikugawa, Masahiko Shibahara, Taku Ohara
  • Organizer: 15th International Heat Transfer Conference
  • Place of Presentation: 京都、京都国際会議場
  • Year and Date: 2014-08-15
• [Presentation] Investigation of thermal resistance and heat conduction at alpha-quartz-liquid alkane interfaces using nonequilibrium molecular dynamics simulations (2014)
  • Author(s): Hari Krishna Chilukoti, Gota Kikugawa and Taku Ohara
  • Organizer: 15th International Heat Transfer Conferenece
  • Place of Presentation: 京都
• [Presentation] 気液瞬時界面近傍における液体アルカンの構造
  • Author(s): Hari Krishna Chilukoti, Gota Kikugawa and Taku Ohara
  • Organizer: 第50回日本伝熱シンポジウム
  • Place of Presentation: 仙台
• [Presentation] Intrinsic structure and diffusion at the liquid-vapor interfaces of alkanes by molecular dynamics simulation
  • Author(s): Hari Krishna Chilukoti, Gota Kikugawa and Taku Ohara
  • Organizer: 2013 ASME Summer Heat Transfer Conference
  • Place of Presentation: Minneapolis, USA
• [Presentation] Study of alkane chain length influence on structure and dynamic properties at intrinsic liquid-vapor interfaces
  • Author(s): Hari Krishna Chilukoti, Gota Kikugawa and Taku Ohara
  • Organizer: 12th International Symposium on Fluid Control, Measurement and Visualization (FLUCOME2013)
  • Place of Presentation: 奈良
• [Presentation] Molecular dynamics mechanism of thermal energy transport in liquid methane reproduced by all-atom and united-atom models
  • Author(s): Joji Haneda, Gota Kikugawa and Taku Ohara
  • Organizer: 4th International Symposium on Micro and Nanotechnology
  • Place of Presentation: Shanghai, China
• [Presentation] A molecular dynamics study on effect of temperature on diffusion in the vicinity of an alpha-quartz surface/alkane interfaces
  • Author(s): Hari Krishna Chilukoti, Gota Kikugawa and Taku Ohara
  • Organizer: 4th International Symposium on Micro and Nanotechnology
  • Place of Presentation: Shanghai, China
• [Presentation] Surface termination effect on structure of decane liquid in the vicinity of alpha-quartz surfaces
  • Author(s): Hari Krishna Chilukoti, Gota Kikugawa and Taku Ohara
  • Organizer: 10th International Conference on Flow Dynamics
  • Place of Presentation: 仙台
• [Presentation] 直鎖アルカン飽和液中の熱エネルギー伝搬機構に関するAll-Atom分子動力学シミュレーション
  • Author(s): 羽田城司, 菊川豪太, 小原拓
  • Organizer: 日本機械学会2012年度年次大会
  • Place of Presentation: 金沢
• [Presentation] Molecular Dynamics Study on Effect of Chain Length on Liquid-Vapor Interfacial Properties of Alkanes
  • Author(s): Hari Krishna Chikukoti, Gota Kikugawa and Taku Ohara
  • Organizer: 9th International Conference on Fluid Dynamics
  • Place of Presentation: 仙台
• [Presentation] 流体の熱輸送を支配する分子動力学機構
  • Author(s): 小原 拓
  • Organizer: 大阪大学機械工学系第63回技術交流会
  • Place of Presentation: 大阪
  • Invited
• [Presentation] Molecular Dynamics Simulation of Liquid-Vapor Interfacial Properties of n-Alkanes
  • Author(s): Hari Krishna Chikukoti, Gota Kikugawa and Taku Ohara
  • Organizer: 3rd International Forum on Heat Transfer
  • Place of Presentation: 長崎
• [Presentation] Investigation of Interfacial Properties at α-Quartz/Alkane Interfaces Using Molecular Dynamics Simulations
  • Author(s): Hari Krishna Chikukoti, Gota Kikugawa and Taku Ohara
  • Organizer: 2nd International Conference on Advancements in Engineering and Management
  • Place of Presentation: ハイデラバード（インド）