| Project/Area Number |
22K03966
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 19020:Thermal engineering-related
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| Research Institution | Kobe University |
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Principal Investigator |
LI CHUNGGANG 神戸大学, システム情報学研究科, 講師 (70650638)
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| Project Period (FY) |
2022-04-01 – 2023-03-31
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| Project Status |
Discontinued (Fiscal Year 2022)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2025: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2024: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2023: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2022: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
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| Keywords | conjugate heat transfer / compressible flow / natural convection / irregularly rough wall / transition |
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| Outline of Research at the Start |
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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| Outline of Annual Research Achievements |
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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