Geology Reference
In-Depth Information
The non-Newtonian model is implemented in ALPHA3.EXE. Clicking on
this filename produces a message box reminder and three programs as shown in
Figure 6.3c. The message notes that n and K values must be entered into the
bottom attenuation calculator before “Find” can be executed. Two methods are
available to determine n and K. The first assumes that Fann dial readings are
available and the second assumes that viscosities and shear rates are available.
For example, let us use the Fann dial readings shown in the above left calculator
and click “Calculate.” Then, n and K will appear in the bottom boxes of that
calculator. These values should be copied and pasted into the attenuation
calculator (which emphasizes “non-Newtonian” at the top). Then, click “Find”
to obtain the results in Figure 6.3d.
Figure 6.3c
. Non-Newtonian flow menu.
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