방사성폐기물학회지 (Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT))

  • 제10권4호
  • /
  • Pages.237-246
  • /
  • 2012
  • /
  • 1738-1894(pISSN)
  • /
  • 2288-5471(eISSN)
한국방사성폐기물학회 (Korean Radioactive Waste Society)
권호 표지
DOI QR코드

DOI QR Code

단일 균열암반에서 핵종/콜로이드 복합이동에 대한 수치모델 개발

Development of the Numerical Model for Complex Transport of Radionuclide and Colloid in the Single Fractured Rock

  • 투고 : 2012.07.19
  • 심사 : 2012.10.23
  • 발행 : 2012.12.30
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

본 연구에서는 콜로이드와 핵종의 복합이동에 관한 수치모델을 개발하였다. 콜로이드와 핵종의 반응-이동 지배방정식을 풀기 위하여 Operator Splitting Method 중 Strang의 분리 SNI 방식을 수치해석 방법으로 채택하였고 이는 MATLAB을 이용하여 코드화 되었다. 개발된 수치모델은 용질의 이동 및 분산만을 고려한 해석해를 통한 검증과정에서 피어슨 상관계수의 제곱값($r^2$)이 0.99 이상으로 나타나 모델의 정확성이 입증되었다.

In this study, numerical model for transport of radionuclide and colloid was developed. In order to solve reaction-migration governing equation for colloid and radionuclide, Strang-splitting Sequential Non-Iterative (SNI), which is one of Operator Splitting Method, was used for numerical method and this was coded by MATLAB. From the verification by comparing the simulation results with analytical solution considering only solute transport and rock diffusion, the Pearson's correlation coefficient was greater than 0.99 which demonstrates the accuracy of the model.

키워드

참고문헌

  1. Min-Hoon Baik and Won-Jin Cho, "An Experimental Study on the Sorption of Uranium(VI) onto a Bentonite Colloid", J. of the Korean Radioactive Waste Society, 4(3), pp.235-243(2006).
  2. Andre R., Dirk-Alexander B., Richard S., "The Importance of Bentonite Colloids on the Radionuclide Transport in the Far-Field of a Waste Repository in Granite", Gesellschaft fur anlagen und Reaktorsicherheit (GRS) mbH Braunschweig, Germany.
  3. R.W. Buddemeier, J.R. Hunt, Transport of colloidal contaminants in groundwater : radionuclide migration at the Nevada Test Site, Appl. Geochem. 3 , pp.535-548 (1998).
  4. Min-Hoon Baik, Jae-Kwang Lee and Jong-Won Choi, "Research Status on the Radionuclide and Colloid Migration in Underground Research Facilities", J. of the Korean Radioactive Waste Society, 7(4), pp.243- 253 (2009).
  5. S.H. Li, H. Yang, C.P. Jen, Modeling of colloid transport mechanisms facilitating migration of radionuclides in fractured media, Nucl. Technol. 148, pp.1- 11(2004).
  6. Bear, J., Dynamic of Fluids in Porous Media, Elsevier, New York (1972).
  7. Carrayrou, J.; Mose, R.; Behra, P., "Operator-splitting procedures for reactive transport and comparison of mass balance errors", Journal of Contaminant Hydrology, 68, pp.239-268 (2004). https://doi.org/10.1016/S0169-7722(03)00141-4
  8. Tang, D.H.; Frind, E.O.; Sudicky, E.A., Contaminant transport in fractured porous media; Analytical solution for a single fracture. Water Resources Research , 17(3), pp.555-564 (1981). https://doi.org/10.1029/WR017i003p00555
  9. Jung-Woo Kim and Min-Hoon Baik, "Development of the Numerical Model for Reactive Transport of Radionuclide and Bacteria in the Single Fractured Rock", Korea Atomic Energy Research Institute, KAERI/ TR-4196/2010 (2010).
  10. Jung-Woo Kim, Min-Hoon Baik, Seung-Yeop Lee and Jong-Min Oh, "The Effects of Bacteria on the Radionuclide Migration in the Fractured Rock", Korea Atomic Energy Research Institute, KAERI/TR- 4442/2011 (2011).