Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
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A Study on the Boundary Condition for Analysis of Bio-heat Equation According to Light Irradiation

광조사에 따른 생체열 방정식의 해석을 위한 경계조건의 확립에 대한 연구

  • Ko, Dong Guk (Dept. of Mechanical Engineering, Graduate School, Chonbuk Nat'l Univ.) ;
  • Bae, Sung Woo (Dept. of Mechanical Design Engineering, Chonbuk Nat'l Univ.) ;
  • Im, Ik-Tae (Dept. of Mechanical Design Engineering, Chonbuk Nat'l Univ.)
  • 고동국 (전북대학교 대학원 기계공학과) ;
  • 배성우 (전북대학교 기계설계공학부) ;
  • 임익태 (전북대학교 기계설계공학부)
  • Received : 2015.02.26
  • Accepted : 2015.09.08
  • Published : 2015.11.01
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Abstract

In this study, the temperature change in an imitational biological tissue, when its surface is irradiated with bio-light, was measured by experiments. Using the experimental data, an equation for temperature as a function of time was developed in order to use it as a boundary condition in numerical studies for the model. The temperature profile was measured along the depth for several wavelengths and distances of the light source from the tissue. It was found that the temperature of the tissue increased with increasing wavelength and irradiation time; however, the difference in the temperatures with red light and near infrared light was not large. The numerical analysis results obtained by using the developed equation as boundary condition show good agreement with the measured temperatures.

본 연구에서는 모의 생체조직에 광을 조사하고 그에 따른 조직 내의 열전달 현상을 분석하였으며 이를 이용하여 수치해석 시 필요한 표면 경계조건에 대한 관계식을 도출하였다. 세 가지 서로 다른 파장의 광을 높이를 바꾸면서 조사하여 표면에서부터 깊이방향으로 조직 내의 온도를 측정하였다. 그 결과 파장과 조사 시간이 길수록 한천조직의 온도는 높아졌으나 붉은 색 파장과 근적외선은 큰 차이를 나타내지 않았다. 도출된 경계조건을 사용한 수치해석 결과는 측정된 온도와 잘 일치하였다.

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References

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