Hydraulic Jump Example
ENVE 214 - November 2005
R. W. Jenkinson
Set known parameters
b := 10 m
:= 9806
N
3
y 1 := 0.1 m
m
2
q := 1
v 1 :=
:=
m
s
q
g
v 1 = 10
y1
m
s
Force Balance Equation
- all terms moved to the right
- we have hydrostatic forces and t
Water flows at a rate of 500 ft3/s through a rectangular section 10.0
ft wide from a "steep" slope to a "mild" slope creating a hydraulic
jump, as shown below. The upstream depth of flow (d1) is 3.1 ft.
Find the (a) downstream depth, (b) energy (head) los
PIPE EXPANSIONS AND CONTRACTIONS
How do we evaluate the head loss in an expansion or a contraction
along the length of a pipe?
Like other changes in the geometry of a pipe system, we consider
these in a similar manner to the other minor losses a function
EPA/600/R-00/057 September 2000
EPANET 2 USERS MANUAL
By
Lewis A. Rossman Water Supply and Water Resources Division National Risk Management Research Laboratory Cincinnati, OH 45268
NATIONAL RISK MANAGEMENT RESEARCH LABORATORY OFFICE OF RESEARCH AND DEVEL
1 FLUID MECHANICS
Fluid Mechanics is the study of the behaviour of fluids - at rest and in motion. The term fluid refers to substances that are capable of flowing and that have no definite shape. Fluids, therefore, refer to both liquids and gases. Gases a
Sluice Gate Example
b := 10 m
:= 9806
3
Q := 10
m
N
:=
3
m
g
sec
Determine flow per unit width
q :=
Q
2
q=1
b
m
s
m
V2 := 5
s
Use Continuity to solve for y2
y 2 :=
q
y 2 = 0.2m
V2
Depth at y2
E2 = 1.475m
Energy at location 2
2
V2
E2 := y 2 +
2 g
Energie
REYNOLDS NUMBER AND DRAG ON IMMERSED BODIES SUPPLEMENTAL LECTURE
In Lab 1 there were two components: 1) the Reynolds Apparatus for determination of turbulent flow; and 2) the Stokes Apparatus for determining the drag forces on submerged bodies. We will re