

Section 3: Mass Conservation of Flowing Media  
3.1  Law of mass conservation for a continuum, expressed in control volume form. Examples.  
3.2  Mass conservation law in differential form. The physical significance of the divergence of the velocity: = the rate of increase of the material’s volume, per unit volume.  
3.3  Some special forms of the mass conservation equation for quasionedimensional flow, accounting for the effects of unsteadiness, compressibility, and crosssectional area variations. Examples.  
Reading  
Fay, Chapter 3


Problem Set Section 3  
Problem 3.3  
Problem 3.5  
Problem 3.7  
Problem 3.8  