Investigation on calculation method for flow concentration with stochastic input

Proving by a lot the measured data,There are many unpredictable and uncontrollable factors in the process of flow concentration. The stochastic differential equation is used to replace the ordinary differential equation to describe the process of the flow concentration more reasonable. The linear random flow concentration system with the white noise input is discussed. The analytic and numerical solution of the flow concentration model can be obtained after the randomness of initial condition is solved.