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Lecture_10_notes

# Lecture_10_notes - Chemical Engineering 374 Fluid Mechanics...

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1 1 Chemical Engineering 374 Fluid Mechanics Fall 2011 Exam 1 Review Exam Review, By Content/Lectures Classes 1-9 (plus review) Chapter 1 Introduction/Basics Chapter 2.1-2.6 Fluid Properties Chapter 3.1-3.6 Pressure/Fluid Statics Chapter 4.1, 4.6 RTT, Conservation Laws Chapter 5.1-5.5 M.B., E.B., Bernoulli Homeworks 1-9 2

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2 Class 1--Introduction • Syllabus • Schedule • Policies • Competencies/Goals Info Sheets Units, esp. lbm vs. lbf Sig. Figs. Problem Solving 3 Class 2 – Fluid Properties Fluid definition in terms of stress Liquids vs gases Continuum assumption Density – gases, liquids (T, P variations) Coefficient of compressibility (P, V) Coefficient of volume expansion (T, V) Viscosity– in terms of stress ( τ = μ du/dy) Force per area, also a momentum flux. Non-Newtonian Fluids – Newtonian Bingham plastic – Pseudoplastic – Dilitant 4
3 Class 3 – Pressure/Fluid Statics Pressure (F/A), a normal stress, isotropic/scalar. – Units Absolute vs gage (which/when/specify) Barometric equation Force balance on a body, divergence theorem Δ P = ρ gh (for constant density). Know what to do for variable ρ Ideal Gas: Isothermal à ideal gas law Ideal Gas: Adiabatic à ideal gas law with T, P relation, where γ =c p /c v ~ const Liquid P variation with depth, gas variation with depth.

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