대한기계학회논문집 (Transactions of the Korean Society of Mechanical Engineers)
- 제6권3호
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- Pages.247-255
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- 1982
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- 1225-5963(pISSN)
DOI QR Code
均一두께 의 원통핀 에서 過渡溫度 分布 에 관한 硏究
Study on Transient Temperature Distribution in Annular Fin of Uniform Thickness
초록
The heat diffusion equation for an annular fin is analyzed by Laplace transformation. The fin has a uniform thickness, with its end insulated, and three different temperature profiles at the base such as step change, harmonic and exponential functions. The exact solutions for the temperature and heat flux of the fins are obtained with the infinite series. The series solutions converge rapidly for large values of dimensionless time, but slowly for small values. Therefore some approximate solutions are presented here to fine the temperature distribution and heat flux for small values of dimensionless time. Furthermore a simple approximate heat flux, .OMEGA.=1.13c.tau.
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