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Kinematic viscosity

In fluid dynamics, it is sometimes more appropriate to work in terms of kinematic viscosity (sometimes also called the momentum diffusivity), defined as the ratio of the dynamic viscosity (μ) over the density of the fluid (ρ). It is usually denoted by the Greek letter nu (ν):

$\nu ={\frac {\mu }{\rho }},$

$$\nu ={\frac {\mu }{\rho }},$$

and has the dimensions [ ${\textstyle \mathrm {(length)^{2}/time} }$ ], therefore resulting in the SI units and the derived units:

$\left[\ \nu \ \right]={\frac {\rm {m^{2}}}{\rm {s}}}=\mathrm {{\frac {\rm {N\cdot m}}{\rm {kg}}}\cdot s} =\mathrm {{\frac {\rm {J}}{\rm {kg}}}\cdot s} =\ [\$specific energy$\ ]\ \times \ [\$time$\ ]$.

Testing

$\left[\ \nu \ \right]={\frac {\rm {m^{2}}}{\rm {s}}}=\mathrm {{\frac {\rm {N\cdot m}}{\rm {kg}}}\cdot s} =\mathrm {{\frac {\rm {J}}{\rm {kg}}}\cdot s} =\ [$ specific energy $]\ \times \ [$ time$\ ]$.

$$\left[\nu \right]={\frac {\rm {m^{2}}}{\rm {s}}}=\mathrm {{\frac {\rm {N\cdot m}}{\rm {kg}}}\cdot s} =\mathrm {{\frac {\rm {J}}{\rm {kg}}}\cdot s} =\ [$$ specific energy $]\ \times \ [$ time$]$.

${\begin{aligned}\left[\nu \right]&={\frac {\rm {m^{2}}}{\rm {s}}}\\&=\mathrm {{\frac {\rm {N\cdot m}}{\rm {kg}}}\cdot s} \\\end{aligned}}$

${\begin{aligned}\left[\nu \right]&={\frac {\rm {m^{2}}}{\rm {s}}}=\mathrm {{\frac {\rm {N\cdot m}}{\rm {kg}}}\cdot s} \\&&=\mathrm {{\frac {\rm {J}}{\rm {kg}}}\cdot s} \\&=\ [\end{aligned}}$ specific energy $]\ \times \ [$ time$]$.

Conversion

1–3 ft (0.30480000–0.91440000 m)

1,000 kilograms ()

1,000 kilograms ()

1,000 kilograms (2,204.6226 lb)

1,000 kilograms ()

1,000 kilograms (2,204.6226 lb)

1 pound (0.4536 kg)

1 pound (0.453592370 kg)

1,000 newtons (224.8089 lbf)

1,000 newtons ()

Left	C	Right

test

test 1 2 3 4 5 Currently, 13 text are traveling (of those 2 are text). The highest number of 14 text was reached on (of those 2 text). test

	Currently,	10	humans in total
	are orbiting Earth.
	(of those,	2	are women).
	The record number
	of	14	humans in total
	was first reached on 21 Sep 2021
	(of those	3	were women).

test1

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