Numerical Solution for Orifice Flow

Numerical Solution for Orifice Flow With orifice flow, the last two terms of the momentum balance (line resistance and potential energy change) are negligible. The momentum balance, Eq. (23-40), reduces to... 

FIG. 23-34 Numerical solution of the momentum balance for orifice flow using Eqs. (23-56) and (23-59). 

In closing, the reader should be reminded that even comprehensive numerical simulations, e.g., simulations that include coagulation and use a two-dimensional flow field, have similar difficulties in predicting the formation of the micrometer-sized particles that are found in RESS experiments with micro-orifices. Our two-step model can therefore be seen as a practical tool that predicts these difficulties and aids us in the search for solutions. 

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