What is the criterion of deciding whether the liquid has low, medium or high viscosity?īut why are some liquids more viscous than others is it because they have different solidifying points? or is it their atoms being closer. Why does the viscosity of liquid decrease when temperature increases, whereas the viscosity of gas increases with temperature?ĭerive the analog of Hagen-Poiseuille equation for ostwalde-de-waele model (power law) This online unit converter allows quick and accurate conversion between many units of measure, from one. How come some liquids have more viscosity then other liquids? gerardo lopez Using the Kinematic Viscosity Converter Converter. You could look at the reynolds number and how it describes a fluid. Measurement units, Dynamic Viscosity Converter, Dynamic Viscosity Converter, Centipoises(cP), Grams per centimeter second(g/(cm·s)), Kilograms per meter second(kg/(m·s)), Newton seconds per square meter(N·s/m2), Pascal seconds(Pa·s), Poises(P), Pound-force seconds per square inch(lbf·s/in2), Pound-force seconds per square foot(lbf·s/ft2), Pounds per foot second(lb/(ft·s)), Pounds per. Wow, whew! Thanks wise geek! This is what i need for my science fair! As a simple example, syrup has a much higher viscosity than water: more force is required to move a spoon through a jar of syrup than in a jar of water because the syrup is. The fluid can be a liquid or a gas, but the term is more commonly associated with liquids. In addition, cP (centipoise) is the conventional measurement unit. Viscosity is a scientific term that describes the resistance to flow of a fluid. Density is mass per unit volume of an object and is designated with a p.In this equation, you need to measure the density of both the sphere, p s, and the liquid, p l, it is passing through.The radius of the sphere, a, can be found by measuring the circumference of the sphere and dividing that by 2. As viscosity value increases, the force due to viscosity increases as well. Understand the variables in the viscosity equation. What are some high viscosity and low viscosity fluids? The measurement unit of viscosity is Pa·s (pascal second) or mPa·s (millipascal second). May 29, Please help me derive the analog of Hagen-Poiseuille equation for a power law fluid. Viscosity of SAE 30 oil at 60 degrees Fahrenheit is 35.69 mm2 s 35.69 m m 2 s. Why do different liquids flow more easily than others? It's because the molecules are separated when heat is applied, so it is less viscous and runs smoother.ĭoes oil have a point where it will become a solid or not?