PO.FRAC.Proppant.WallFactor
Description
Wall correction factor for settling in narrow fracture (Faxen), [dimensionless].
Syntax
=PO.FRAC.Proppant.WallFactor(dp, w)Parameters
| Parameter | Description |
|---|---|
| dp | Particle diameter, [inches]. |
| w | Fracture width, [inches]. |
SI Unit Version
Lambda Name
PO.FRAC.Proppant.WallFactor.SIFormula
=LAMBDA(dp, w, LET(
dp_in, PO.UnitConverter(dp, "cm", "in"),
w_in, PO.UnitConverter(w, "cm", "in"),
PO.FRAC.Proppant.WallFactor(dp_in, w_in)))SI Parameters
| Parameter | Unit | Description |
|---|---|---|
dp |
cm | Particle diameter, [cm] |
w |
cm | Fracture width, [cm] |
How to save as a reusable Excel function
LAMBDA is a built-in Excel feature (Microsoft 365) that lets you create custom functions without VBA. The formula above works as-is when pasted into a cell.
To save a LAMBDA as a reusable named function:
- Go to Formulas → Name Manager → New
- Enter a name, e.g.
PO.FRAC.Proppant.WallFactor.SI - In Refers to, paste the LAMBDA formula without the trailing invocation
(...) - Click OK
Now use =PO.FRAC.Proppant.WallFactor.SI(...) anywhere in your workbook.