ChE 241 SW1
1. Find the maximum velocity of an LPG feedstock in laminar flow at 20 and 1 atm. The gaseous
stock composed of 4.6% ethylene, 70.17% propane, 25.07% propylene and 0.16% isobutene is to be
transported in a 2-inch pipe at a distance of 100 m us

ChE 241 HW1
Problem 1. (2B.3) Laminar Flow in a narrow slit
(a) A Newtonian fluid is in laminar flow in a narrow slit formed by two parallel walls a distance 2B
apart. It is understood that B<W, so that edge effects are unimportant. Make a differential
mo

ChE 241 Transport Phenomena
Problem 1. Create an executable program/worksheet that can illustrate the 2-D velocity distribution
throughout the cross-section of a duct defined by the equation:
2 2
+
=1
2 2
The velocity distribution lines must be shown as a

ChE 241
Problem 1. Consider Figure 1,
Figure 1. Illustration of problem
Conditions:
a.
b.
c.
d.
Steady-state conduction
2D Heat flow
No internal heat generation
K is constant
Write the equation in Finite Difference Form:
2
Consider 2 , Taylor Series Expa

ChE 241 Transport Phenomena
First Long Examination
Since: sin = sin and cos = cos .
The final formula would become:
() = [cos() sin()]
Therefore:
= cos
= sin
c. Plot of streamlines
Using the stream function
= sin
And knowing that:
=
=
the streamlin

ChE 241 Project
Article Title: Transient molecular diffusion in microfluidic channels: Modeling and experimental
verification of the results1
Figure 1. Schematic presentation of the micro channel
Definition of terms: (TM target molecule)
C(x,t)
Analyte co

Problem 1
function Heat2D
%Run Heat2D
clear all; clc
prompt = 'What is the Plate Width (x-axis)? ';
x = input(prompt);
W=x; et dimensiom y-axis
prompt = 'What is the Plate Length (y-axis)? ';
y = input(prompt);
L=y; et dimension x-axis
M = 30; et number o

ChE 241
A salt solution with concentration C0 is continuously injected at a steady state rate at the center of a large,
thin square sample of a clear polymeric gel placed in a similar salt solution with concentration C1 (where
C1 < C0). The gel is almost

ChE 241 Review Test
1 FLUID DYNAMICS SHELL MOMENTUM BALANCE
Using shell momentum balance, find the velocity profile and the maximum velocity of a Newtonian fluid
of viscosity in laminar flow inside a rectangular duct of dimension and length . The pressure