Textbook Notes (280,000)
US (110,000)
LSU (20,000)
CE (800)
CE 2200 (100)
All (100)
Chapter

Chapter 5 CV And Continuity


Department
Civil Engineering
Course Code
CE 2200
Professor
All

This preview shows pages 1-3. to view the full 9 pages of the document.
CE 2200/Willson February 27, 2015 1
Fluid Flow Concepts and Basic
Control Volume Equations
Introduction
Control Volume Conservation Equation
Conservation of Mass/Continuity
CE 2200
Fall 2015
Chapter 5
Dot Product
u v u v = cos
θ
q!
u
v
normal unit vector, n
magnitude of one
direction is normal to the surface
Area vector, A = nA
Differential Area vector, dA = ndA n
A
Surface

Only pages 1-3 are available for preview. Some parts have been intentionally blurred.

CE 2200/Willson February 27, 2015 2
Flow Rate
dA
V
=Δ=
area
area
AdvAvQ
Q v dA
area
=cos
θ
Q v A= •
dA
V
Flow Rate
Mean, or average velocity
turbulent flow: the mean velocity may closely approximate
the actual flow
laminar flow: the mean velocity probably doesnt approximate
the actual flow

Only pages 1-3 are available for preview. Some parts have been intentionally blurred.

CE 2200/Willson February 27, 2015 3
Control Volume Approach
System: a given quantity of matter
For solids---use system approach with Lagrangian viewpoint
For fluids---this approach is too complicated for most systems
Control Volume Approach
mass momentum energy
Extensive Property, B
Intensive Property, β = B/m
You're Reading a Preview

Unlock to view full version