دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

بزرگترین دیکشنری مهندسی نفت با بیش از 20 هزار کلمه ، مصور و با قابلیت تلفظ

کلمه yield value یافت شد:
n: the resistance to initial flow, or the stress required to start fluid movement. This resistance is caused by electrical charges located on or near the surfaces of the particles. The values of the yield point and thixotropy, respectively, are measurements of the same fluid properties under dynamic and static states. The Bingham yield value, reported in pounds/100 square foot, is determined from a directindicating viscometer by subtracting the plastic viscosity from the 300-rpm reading. Also called yield point.

Also called movable shear stress. The viscosity dont change along with the shear stress when shear stress arrive a given value,now shear stress and rate of shearing present direct ratio relation, the value of crossing point of this direct ratio relation
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