Help please! I have no idea how to answer this modelling question. Please explain answer well so I can understand. Thanks.
![3. [14 marks] A pollutant enters a stream in a single blob across the full width with equation for concentration P(x,0) = 0.1](http://img.homeworklib.com/images/86cae8d2-10dc-4064-a5a7-8d82adb15008.png?x-oss-process=image/resize,w_560)


Help please! I have no idea how to answer this modelling question. Please explain answer well so I can understand. Thanks. 3. [14 marks] A pollutant enters a stream in a single blob across the full w...
3. [14 marks] A pollutant enters a stream in a single blob across the full width with equation for concentration P(x,0) 0.1e . The stream is moving with speed 1m/s in the positive direction so that if the blob does not diffuse, the equation describing the concentration is -5<x<01>0 where B is the rate of turbulent diffusion (a) Using the techniques of first-order pdes, solve for the concentration of pollutant if β = 0. (b) Write an explicit forward-time-backward-space finite...