Quote:
Originally posted by gone_fishin
Waterloo shows this, 9.5131E-4 kg/m.s for the dynamic viscosity of water at 21.11C.
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This is why I said you might want to check the units (and why I listed the units I use). Since F = m * a, Newtons = grams (or kg) * m/s^2. If you replace N in my units above with kg-m/s^2, the resulting units will be kg/m-s. Just realize that when you plug all the units into an equation, such as for Reynolds number, you must be certain that all unit conversions are done.