| 研究課題/領域番号 |
22K03966
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| 研究種目 |
基盤研究(C)
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| 配分区分 | 基金 |
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| 応募区分 | 一般 |
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| 審査区分 |
小区分19020:熱工学関連
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| 研究機関 | 神戸大学 |
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研究代表者 |
LI CHUNGGANG 神戸大学, システム情報学研究科, 講師 (70650638)
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| 研究期間 (年度) |
2022-04-01 – 2023-03-31
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| 研究課題ステータス |
中途終了 (2022年度)
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| 配分額 *注記 |
4,030千円 (直接経費: 3,100千円、間接経費: 930千円)
2025年度: 910千円 (直接経費: 700千円、間接経費: 210千円)
2024年度: 1,170千円 (直接経費: 900千円、間接経費: 270千円)
2023年度: 1,170千円 (直接経費: 900千円、間接経費: 270千円)
2022年度: 780千円 (直接経費: 600千円、間接経費: 180千円)
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| キーワード | conjugate heat transfer / compressible flow / natural convection / irregularly rough wall / transition |
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| 研究開始時の研究の概要 |
The effect of the practical surface roughness on the transition in natural convection coupled with the heat conduction inside the wall using a compressible solver is investigated. The practical heat transfer problems are always accompanied by the coupled phenomena including the transition, high temperature differences, heat convection, heat conduction, and roughness surface. Therefore, this research aims to develop a numerical framework to reveal the transition mechanism among the conjugate heat transfer (CHT), natural convection, and practical surface roughness.
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| 研究実績の概要 |
The conjugate heat transfer (CHT) solver based on compressible flow framework which can calculate the convection in the fluid and the conduction in the solid simultaneously has been developed. However, due to the different scales of the characteristic velocities between the fluid and solid, the extremely smaller time step is inevitable. To overcome this problem, the Adaptive Time Scheme developed by authors for computational aeroacoustics is under modification to be applied to CHT problems to increase the time step to save computational time. Besides, to validate the current framework, the simulation of the natural convection and heat conduction around and in a horizontal circular pipe is studied.
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