The velocity v (m/s) of air flowing past a flat surface is measured at several distances y(m) away from the surface. Use Newton's viscosity law to determine the shear stress t (N/m2) at the surface (y=0). dv To dy Assume a value of dynamic viscosity u=1.8. 10-N.s/m2 0 0.002 0.006 0.012 0.018 0.024 0 0.287 0.899 1.915 3.048 4.299 y, m V, m/s (=?) Use unequally spaced three data and the first-derivative of a second-order Langrange polynomial to evaluate the derivative (y=0) and shear stress. Estimate the approximate percent relative error
The velocity v (m/s) of air flowing past a flat surface is measured at several distances y(m) away from the surface. Use Newton's viscosity law to determine the shear stress t (N/m2) at the surface (y=0). dv To dy Assume a value of dynamic viscosity u=1.8. 10-N.s/m2 0 0.002 0.006 0.012 0.018 0.024 0 0.287 0.899 1.915 3.048 4.299 y, m V, m/s (=?) Use unequally spaced three data and the first-derivative of a second-order Langrange polynomial to evaluate the derivative (y=0) and shear stress. Estimate the approximate percent relative error
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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The velocity v (m/s) of air flowing past a flat surface is measured at several distances y(m) away from the surface. Use Newton's viscosity law to determine the shear stress t (N/m2) at the surface (y=0). dv To dy Assume a value of dynamic viscosity u=1.8. 10-N.s/m2 0 0.002 0.006 0.012 0.018 0.024 0 0.287 0.899 1.915 3.048 4.299 y, m V, m/s (=?) Use unequally spaced three data and the first-derivative of a second-order Langrange polynomial to evaluate the derivative (y=0) and shear stress. Estimate the approximate percent relative error
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