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A range of about 2.2:1. well, if a 2.2 fold increase isn't big enough, lets suggest a 5 fold change. According to the other data there you would need a solution that has about 50% glycerine. (We are no-longer talking about the painters who add the odd drop of glycerine to paints to slow the drying down.)
Meson. Senior Members. 23. 159. Posted August 22, 2011. Anyone know where I can find tables of kinematic viscosity for ethylene glycol / water solutions? I need to design a cooling system using a 50/50 mix @ 100C. Thanks in advance.
18.4k. Posted March 22, 2008. Dragging ions through the solution using an electric field is more difficult if the liquid is viscous. Heating water will reduce the viscosity and so less work will be done on those ions. If you need to waste less effort working against viscosity then you will get better efficiency .
Calculating the viscosity of a blended liquid consisting of two or more liquids having different viscosities is a three step procedure. The first step involves calculation of the Viscosity Blending Index (VBI) of each component of the blend using the following equation (known as a Refutas equation): (1) VBI = 14.534 × ln [ln (v + 0.8)] + 10.975.
The viscosity term in the formula above is that of the liquid, not of the gas. Vs = 2 9 (ρp−ρf) μ gR2. Vs = terminal velocity of bubble in m/s. ρp = density of particle (in this case that's a bubble!) in kg/m3. ρf = density of fluid (the soda, so take that of water) in kg/m3. μ = viscosity of fluid (water) in Pa s.
The answer is a combination of atmospheric pressure, surface tension, viscosity, and whether there's a free surface. The water will poor smoothly if you tilt the container only slightly. That's because there's a free surface for air to flow into the bottle above the water at the same time that water is flowing out.
Uh, no. If the oceans were made of mercury the tides would be smaller. Mercury is more viscous than water and is more dense than water. The greater viscosity results in a greater lag and a smaller amplitude. The greater density results in a greater self-gravitation, which acts against the tidal potential from some third body.
114. Posted December 27, 2007. Getting Na2CO3 from baking soda is easy. Simply put the soda into a tin can and place it over high heat. After a couple minutes it will start to "bubble" (It almost looks like blowing air through a layer of sand). When it stops bubbling, it's done.
The other big difference is that water can flow in open channels and often has a free surface. Gases 'expand to fill theor container'. Obviously air is also less dense, and has lower viscosity so any formulae that depend upon these properties will also change., that of course is partly taken care of in dimensionless number modelling, but it ...
That article had univeristy swim team members perform laps in water and in a guar gum solution with about 10 times the viscosity of water, and found that times were pretty darn close to the same. The major conclusion was that competitive swimming wasn't really in the laminar flow regime, and that surface drag was only a tiny factor.