CE 716 EROSION AND SEDIMENTATION Pierre Y. Julien, Fall 2005 Assignment #1 Chapters 1,2, and 3 due September 7, 2005 Problem # 1 (20%) 1a. Consider a 6 m high container that is 0.5m x 0.5m at the base
Problem #1 (40%)
Solve Problem 8.8 p. 193. Data from the Jamuna River in Bangladesh
from Klassen(also listed in Julien, 1992)show dunes at a discharge of
10000 m3/s. Flow depth of 11m average velocity
Problem # 1 (30 points)
Solve Exercise 7.1 p. 166. Plot tan as a function of d2/d1 and explain
the effect of the particle ratio on the criterion for incipient motion.
Solution.
Figure Angle of repose
Problem #1:
Refer to the Rhine River and determine the following in SI units:
1. Bedform type from Liu and Albertson
2'0 =thSf =p-u.2
u. =./thSf
A
Rh = F assume rectangular channel geometry
w-d 260m-9
Problem # 1
Demonstrate that the equation of motion (Eqs. 3.11d and 3.11a) are identical.
Also reduce Equation (3.5a)to Equation(3.1a)
Solution.
Eqs.3.11a is
ax=
d vx vx
v
v
v
=
+v x x +v y x + v z x