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1. The velocity profile for a film of liquid flowing down a vertical wall driven by gravity is given by U=(Lx -0.5x²) (pg/μ) Where, L is the thickness of the film, U is the downward velocity, x is the distance perpendicular to the wall, p is liquid density, and u is liquid viscosity. Sketch the velocity profile. • • Find the volume flow rate for a layer of water 2 cm thick flowing down a wall 175 cm wide at a temperature of 25°C. Calculate the expression for volume flow rate and the bulk velocity. How is the bulk velocity related to the maximum velocity?

1. The velocity profile for a film of liquid flowing down a vertical wall driven by gravity is given by U=(Lx -0.5x²) (pg/μ) Where, L is the thickness of the film, U is the downward velocity, x is the distance perpendicular to the wall, p is liquid density, and u is liquid viscosity. Sketch the velocity profile. • • Find the volume flow rate for a layer of water 2 cm thick flowing down a wall 175 cm wide at a temperature of 25°C. Calculate the expression for volume flow rate and the bulk velocity. How is the bulk velocity related to the maximum velocity?

Introduction to Chemical Engineering Thermodynamics
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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Help me with the second and third point. I am not sure which eqn to use. Thank you. 

1. The velocity profile for a film of liquid flowing down a vertical wall driven by gravity is given by U=(Lx -0.5x²)(pg/μ) Where, L is the thickness of the film, U is the downward velocity, x is the distance perpendicular to the wall, p is liquid density, and u is liquid viscosity. Sketch the velocity profile. • • Find the volume flow rate for a layer of water 2 cm thick flowing down a wall 175 cm wide at a temperature of 25°C. Calculate the expression for volume flow rate and the bulk velocity. How is the bulk velocity related to the maximum velocity?
Transcribed Image Text:1. The velocity profile for a film of liquid flowing down a vertical wall driven by gravity is given by U=(Lx -0.5x²)(pg/μ) Where, L is the thickness of the film, U is the downward velocity, x is the distance perpendicular to the wall, p is liquid density, and u is liquid viscosity. Sketch the velocity profile. • • Find the volume flow rate for a layer of water 2 cm thick flowing down a wall 175 cm wide at a temperature of 25°C. Calculate the expression for volume flow rate and the bulk velocity. How is the bulk velocity related to the maximum velocity?
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