kinematic viscocity
kinematic viscocity
(OP)
how do i calculate the kinematic viscocity of fluids.can some one help me in getting some usefull formulae.i want the value of kinematic viscocity at a particular temperature.
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RE: kinematic viscocity
you can find the kinematic viscosity of many common fluids doing a simple search.
RE: kinematic viscocity
i even found out the formula for kinematic viscocity as dynamic viscocity over density.
but this does not solve my problem i am looking for other ways to find out kinematic viscocity taking temperature into account and other parameters not just density and dynamic viscocity.
RE: kinematic viscocity
RE: kinematic viscocity
I got the information regarding few liquids but still need to know many.I searched various sites but could not get at that particular temperature.
RE: kinematic viscocity
RE: kinematic viscocity
http://ww
eqn 1.10
See if it fits your other data
Good luck
RE: kinematic viscocity
In my experience it is a lot easier to find tabulations of dynamic viscosity than of kinematic viscosity. You will probably have better luck if you search for the dynamic viscosity and the density as a function of temperature and then convert to kinematic for yourself.
Probably the best free online compilation of physical properties is at http://webbook.nist.gov/
If you have trouble with the variety of units that viscosity is used in, download my free units conversion program Uconeer (www.katmarsoftware.com). This program has conversion factors for both kinematic and dynamic viscosity, and if you enter the density it will convert beteen the two as well.
regards
Katmar
RE: kinematic viscocity
Your information is good but this equation gives more unknowns which we have to find out.Do you have any information regarding how to find out those values?
Your help will be appreciated.
Thank You
RE: kinematic viscocity
cheers
RE: kinematic viscocity
For example: for hydrocabons (above 2 cst) the ASTM D341 model is:
log.10.log10(v-0.7) = A -B.log10(T+273) where v is the kinematic viscosity at temperature T deg C.
The relationship for other liquids is often modelled by the Anderade equation.
For a nominal sum you can source a solution from Cheresources (http://www
Note that you will require to know the viscosity at two different temperatures to define the curve for any specific liquid.
JMW
www.ViscoAnalyser.com
RE: kinematic viscocity