Ch 5. Fundamental Laws (Differential) Multimedia Engineering Fluids ConservationMass Navier-Stokesand Euler's ConservationEnergy
 Chapter 1. Basics 2. Fluid Statics 3. Kinematics 4. Laws (Integral) 5. Laws (Diff.) 6. Modeling/Similitude 7. Inviscid 8. Viscous 9. External Flow 10. Open-Channel Appendix Basic Math Units Basic Equations Water/Air Tables Sections Search eBooks Dynamics Fluids Math Mechanics Statics Thermodynamics Author(s): Chean Chin Ngo Kurt Gramoll ©Kurt Gramoll

 FLUID MECHANICS - CASE STUDY Introduction Problem Description On a winter night, the heater unit in George's apartment broke. He woke up because of the coldness, and he wondered how much heat was being lost through the large glass window in his bedroom. The inner surface temperature of the glass window is 20oC while the outer surface temperature is 5oC. The window glass has a thickness of 2 cm. Questions Obtain the temperature profile of the glass window, and determine the amount of heat conducted (per unit area) through it using Fourier's law. Temperature Boundary Conditions Approach Fourier's law of conduction is given by:      q = -kA dT/dx Take the thermal conductivity of the glass (k) as 0.8 W/m-K. Assume the temperature varies across the glass only (i.e., one-dimensional), and is steady-state.

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