AcuFieldView Postprocessing

Hello,

I am trying to estimate the backpressure in an exhaust muffler with input as flow rate in lit/min corresponding to the engine speed and outlet BC as pressure. I am new to CFD analysis, so I would like help on how to check pressure drop result in AcuField view. I find it a bit difficult to understand the user interface of AcuField view.  I have uploaded a snap of my Boundary condition below. 

Thanks,

Srivatsan

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