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Efficient Mixing Of Liquids At Low Reynolds Numbers
The present invention relates to a device and method for mixing substances, particularly very viscous substances in small volumes . The mixing of liquids is essential for many industrial and laboratory processes. Rapid mixing almost always requires some macroscopic flow, which is regularly induced by stirring or shaking. In order to provide efficient mixing the flow needs to be chaotic or turbulent. It is known that a flow is likely to be turbulent when the Reynolds number, Re, is large. In order to obtain a high Reynolds number, the liquid velocity and the tank size should be sufficiently large while the liquid should be of low viscosity. When the liquids are very viscous and/or the tank is small, the velocity required to create a turbulent flow may be so high, that it becomes quite impractical. There is a need to facilitate the mixing of substances, by providing a novel method and device that enables the efficient mixing of substances even very viscous, in small volumes, at arbitrary low Reynolds numbers. The present invention provides that adding minute concentrations (as low as 0.001% of fluid volume) of custom-designed additives to viscous liquids for industrial mixing enables efficient continuous mixing independent of tank size, Reynold's number, liquid viscosity, and at very low flow velocities. At a given flow, the addition of these custom-made additives decreases mixing time one thousand-fold.relates device mixing substances viscous small volumes

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