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Heat-transfer analysis of indirect moxibustion using unsteady conjugate heat-transfer solutions

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Abstract

A conjugate heat-transfer problem in indirect moxibustion was analyzed by solving the problem of unsteady convective heat transfer coupled with conductive heat transfer. The interaction of a combustion-heated paper disk of moxa with the body and surrounding fluid was revealed by examining the body’s unsteady temperature distributions. From the grid- and time step-independent solutions to the present conjugate heat-transfer problem, the effective stimulation periods for four widths of paper disk, along with the depths of the effective stimulation zones, were obtained. Further, it was found that the effective stimulation zone becomes larger and lasts longer for the wider paper disks, whereas the depth of the effective stimulation zone is saturated beyond a certain size. Lastly, the streamline pattern and the history of the spatially averaged heat-transfer coefficient, which is related to the convective heat transfer between the body and the surrounding fluid, were determined.

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Authors and Affiliations

  1. Department of Energy System, Graduate School of Energy and Environment, Seoul National University of Technology, 172 Gongreung-2-Dong, Nowon-Gu, Seoul, 139-743, Republic of Korea

    Byoung Jin Jeon

  2. Department of Mechanical Engineering, Seoul National University of Technology, 172 Gongreung-2-Dong, Nowon-Gu, Seoul, 139-743, Republic of Korea

    Hyoung Gwon Choi

Authors
  1. Byoung Jin Jeon
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  2. Hyoung Gwon Choi
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Correspondence to Hyoung Gwon Choi.

Additional information

This paper was recommended for publication in revised form by Associate Editor Dongshin Shin

Byoung-jin Jeon is currently in the Masters course at Seoul National University of Technology. He is interested in the numerical simulation of various conjugate heat-transfer phenomena.

Hyoung-gwon Choi received a Ph. D at Seoul National University majoring in FEM-based computational fluid dynamics based on finite element method from Seoul National University. He is currently an associate professor of the Department of Mechanical Engineering of Seoul National University of Technology.

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Jeon, B.J., Choi, H.G. Heat-transfer analysis of indirect moxibustion using unsteady conjugate heat-transfer solutions. J Mech Sci Technol 24, 2051–2057 (2010). https://doi.org/10.1007/s12206-010-0620-0

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  • DOI: https://doi.org/10.1007/s12206-010-0620-0

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