Development of an improved mixing model for an SRM code

Abstract: Consider two gases being pumped into a container of some sort. How will they mix? How will they interact with one another? And how do you model the mixing using a computer? One way is to rst divide the two gases into smaller groups called particles and then let these particles interact with one another at random. Two of the models that is used today is CURL and Modied CURL. They work well and the results are consistent with experimental data. One drawback with them is that neither of them can handle mixing with two particles of dierent sizes. So here is presented a new model based on CURL and Modied CURL but with the extension of handling particles of dierent sizes. To test the consistency of these new models simulations are done using DARS, a product of LOGE.