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METHOD AND APPARATUS FOR MEASURING APPARENT VISCOSITY OF A NON-NEWTONIAN FLUID
METHOD AND APPARATUS FOR MEASURING APPARENT VISCOSITY OF A NON-NEWTONIAN FLUID
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机译:测量非牛顿流体视粘度的方法和装置
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摘要
Method and apparatus are disclosed for measuring an apparent viscosity of a non-Newtonian fluid. The method and apparatus involves calculating a power-law number n relating a shear stress of the fluid to a shear rate of the fluid, and then calculating an estimated apparent viscosity ?est of the fluid at a selected shear rate based on a yield stress Y of the fluid and on the calculated power-law number n. The estimated apparent viscosity of the fluid at a selected shear rate is calculated based on the experimental observation that reference shear stress is 1.5 times the yield stress for most shear thinning fluids (e.g., grease).
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