(A) study on the estimation atmospheric transport and diffusion of radionuclide in simple terrain = 단순지형에서 방사성 핵종의 대기중 이동 및 확산평가를 위한 연구

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The Gaussian plume model is widely used to calculate the concentration of radionuclide release to flat terrain in the nuclear power plant. This model assumes that the terrain is flat. So, predicting the dispersion of radionuclide releases to region of complex terrain is difficult. Because plume patterns are changeable by terrain-induced processes the plume behavior must be modified by terrain effects. In this study, modified Gaussian plume model used for estimation of concentrations of plume near an isolated hill or well-defined segment of hills. In addition, a computer code for an atmospheric transport and diffusion model (KTDM) considering terrain effect are developed. To verify the code results, KTDM has been compared with an EPA officially certified code, CTDMplus for a typical isolated hill. The results show that terrain factors at various isolated hills are derived from the meteorological conditions(wind speed, ambient temperature) and terrain features(hill top elevation, major axis length of hill, minor axis length of hill). The distributions of the concentration at the ground-level and terrain surface show the increasing peak concentrations expected over terrain beyond those concentrations that would have been expected for the same meteorological conditions over flat terrain.
Advisors
Lee, Kun-Jairesearcher이건재researcher
Description
한국과학기술원 : 원자력공학과,
Publisher
한국과학기술원
Issue Date
1995
Identifier
101815/325007 / 000933558
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 원자력공학과, 1995.8, [ v, 48 p. ]

Keywords

Radionuclide; Terrain Effect; Atmospheric Diffusion; 대기확산; 방사성 핵종; 지형효과

URI
http://hdl.handle.net/10203/49338
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=101815&flag=dissertation
Appears in Collection
NE-Theses_Master(석사논문)
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