Behavior of Gaseous Volatile Organic Compounds Considered by Density-Dependent Gas Advection

밀도차에 의해 발생하는 이송을 고려한 휘발성 유기화합물 가스의 거동

  • 이창수 (위덕대학교 BT학부) ;
  • 이영화 (경산대학교 건축 건설시스템공학부)
  • Published : 2002.12.01


A numerical model is investigated to predict a behavior of the gaseous volatile organic compounds and a subsurface contamination caused by them in the unsaturated zone. Two dimensional advective-dispersion equation caused by a density difference and two dimensional diffusion equation are computed by a finite difference method in the numerical model. A laboratory experiment is also carried out to compare the results of the numerical model. The dimensions of the experimental plume are 1.2m in length, 0.5m in height, and 0.05m in thickness. In comparing the result of 2 methods used in the numerical model with the one of the experiment respectively, the one of the advective-dispersion equation shows better than the one the diffusion equation.


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