| 释义 |
Poiseuille viscosity coefficient Poi·seu·il·le vis·cos·i·ty co·ef·fi·cient (pwah-swē'), an expression of the viscosity as determined by the capillary tube method; the coefficient η = (πPr4t/8vl), where P is the pressure difference between the inlet and outlet of the tube, r the radius of the tube, l its length, and v the volume of liquid delivered in the time t. If volume is in cubic centimeters, time is in seconds, and l and r are in centimeters, then η will be in poise.Poi·seu·il·le vis·cos·i·ty co·ef·fi·cient (pwah-soy' vis-kos'i-tē kō'ĕ-fish'ĕnt) An expression of viscosity as determined by the capillary tube method; the coefficient η = (πPr4t8vl), where P is the pressure difference between the inlet and outlet of the tube, r the radius of the tube, l its length, and v the volume of liquid delivered in the time t. If volume is in cubic centimeters, time is in seconds, and l and r are in centimeters, then η will be in poise. Poiseuille, Jean Léonard Marie, French physiologist and physicist, 1797-1869. poise - the unit of viscosity equal to 1 dyne-second per square centimeter and to 0.1 pascal-second.Poiseuille equationPoiseuille law - describes the volume flow rate of a liquid through a tube.Poiseuille space - Synonym(s): still layerPoiseuille viscosity coefficient - an expression of the viscosity as determined by the capillary tube method. |