Abstract: This paper studies the radial flow of chemical solution through porous media with dispersion and adsorption.Numerical simulation indicates that the concentration profile of solution bears the character of propagation wave,so that dispersion causes dilution and dissipation of solution and adsorption results in a loss,thus leading to dispersion and lagging of concentration propagation.

摘要： 本文研究了有弥散和吸附的化学溶液径向渗流问题。数值模拟表明溶质浓度分布具有传播波的性质,弥散使溶液稀释,吸附使溶质损耗,从而导致浓度传播波分散和滞后。