| 研究課題/領域番号 |
22K20412
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| 研究種目 |
研究活動スタート支援
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| 配分区分 | 基金 |
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| 審査区分 |
0301:材料力学、生産工学、設計工学、流体工学、熱工学、機械力学、ロボティクス、航空宇宙工学、船舶海洋工学およびその関連分野
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| 研究機関 | 九州工業大学 |
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研究代表者 |
陳 文涛 九州工業大学, 大学院工学研究院, 研究職員 (30963201)
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| 研究期間 (年度) |
2022-08-31 – 2024-03-31
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| 研究課題ステータス |
完了 (2023年度)
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| 配分額 *注記 |
2,860千円 (直接経費: 2,200千円、間接経費: 660千円)
2023年度: 1,430千円 (直接経費: 1,100千円、間接経費: 330千円)
2022年度: 1,430千円 (直接経費: 1,100千円、間接経費: 330千円)
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| キーワード | 準カシミヤカプリング / ナノギャップ / フォノン熱輸送 / 熱共振 / 分子動力学解析 |
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| 研究開始時の研究の概要 |
Phonon heat transfer can be induced by quasi-Casimir coupling due to molecular interaction across a nanogap without electromagnetic fields. However, the quasi-Casimir coupling between the nanostructures and adsorbed water layers on the solid surfaces is still open for question. Therefore, we will verify phonon transmission across a nanogap via nanostructures and adsorbed water layers, focusing on quasi-Casimir coupling and thermal resonance.
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| 研究実績の概要 |
In FY 2023, the contributions of atomic surface terminations to phonon transmission across a nanogap and mechanism of excessive local heat flux at interfacial layers were studied by molecular dynamics simulations using LAMMPS. For SiC-SiC nanogap, the optical phonon transmission enhanced heat transfer across SiC-SiC nanogap in the identical case of C-C with thermal resonance between C-terminated layers. For Pt-water interface, a singular excess in local heat flux appears only at resonant interfacial layers, whereas a uniform distribution is noted without interfacial resonance.
These results have been published in Nanoscale by Royal Society of Chemistry and presented at 14th International Conference on Computational Heat and Mass transfer and Thermal Engineering Conference 2023.
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