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chosing function based on problem

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Old   January 29, 2020, 12:13
Exclamation chosing function based on problem
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I have complex tubular assembly as shown. Fluid flows from internal path, so it will push the Mandrel (green part) towards right side. Some fluid will flow annular gap between Mandrel and restriction (pink part) and then it will force piston (sky colour) on left side.
Model: k-e
Fluid: Cement
Inlet B.C.: 79.5 kg/sec
Outlet B.C: 0 gauge pressure

My question is

1) Since I want to estimate net force acting on Mandrel (green part), which function (area, area-avg, mass-flow-avg, mass-avg etc , will give me near to exact value in CFX?. I want to make it as monitor point.

2) If I want to find erosion rate by cement flow on solids, what should be approach ?

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Old   January 29, 2020, 15:44
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In theory, from the available variables/functions, you should use

force_x()@Boundary of Interest
force_y()@Boundary of Interest
force_z()@Boundary of Interest

Anything else, it would be arranging/smearing the numbers to be something you expect.
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area averaged, function, mass flow average

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