CHAPTER 1
Basic Considerations
1.1 Conservation of mass - Mass - density Newton's second law - Momentum - velocity The first law of thermodynamics - internal energy - temperature a) density = mass/volume = M / L3 b) pressure = force/area = F / L2 =
CHAPTER 13
Measurements in Fluid Mechanics
13.1
A reading of 4 cm provides a vertical measurement of 4 sin 20 o = 1.368 cm.
p = .01368 ( 9810 13.6 ) = 1825 Pa .
13.2
a)
13.3
13.4
Hg h
V2
V2
h
= p=
;
1.22 = ( 9810 13.6)
,
2
100
2
100
V = 46.8 h and C
CHAPTER 10
Flow in Open Channels
10.1
10.2
Type
Closed Conduit
Open Channel
(a)
Steady,
uniform
Pumping between two
Terminal flow in a very
reservoirs in constant long
prismatic channel
diameter pipe
(b)
Unsteady,
nonuniform
Water hammer
Flood wave in riv
CHAPTER 14
Environmental Fluid Mechanics
14.1
q = -K
dT
15 - 25
= 0.86 x
= 1720 W / m 2
dx
0.005
14.2
a) The temperature changes only in the x-direction
b) q = -K
d T T2 T1
=
dx
L
dT
50 - 100
= 35 x
= 4.3 x 103 W / m 2
dx
0.4
T
T
T
d) q = -K i
+j
+k
y
z
Ludwigs-Maximilians-Universitat Munchen
Departement for Physics
University Observatory
Fortran 90 for Beginners
Tadziu Homann & Joachim Puls
summer semester 2010
1
CONTENTS
Contents
1 Literature, internet resources and
1.1 Literature . . . . . . . . .
CHAPTER 3
Introduction to Fluids in Motion
3.1
pathline streamline streakline
3.2
Pathlines:
Release several at an instant in time and take a time exposure of the subsequent motions of the bulbs.
Sreakline: Continue to release the devises at a g
C HAPTER 2
Fluid Statics
2.1 yz ay 2 yz yz Fz = maz : pz y - ps cos = a z + g 2 2 Since s cos = y and s sin = z, we have Fy = ma y : p y z - ps sin =
z py z ps z y gV pz y s y
y z ay and pz - p = ( a z + g) 2 2 Let y 0 and z 0: p y - p = 0