Consider the following steady, three-dimensional velocity field in Cartesian coodinates: V → = ( u , v , w ) = ( a x y 2 − b ) i → − 2 c y 3 j → + d x y k → , where a , b, c and d are constants. Under what conditions is this flow field incompressible?
Consider the following steady, three-dimensional velocity field in Cartesian coodinates: V → = ( u , v , w ) = ( a x y 2 − b ) i → − 2 c y 3 j → + d x y k → , where a , b, c and d are constants. Under what conditions is this flow field incompressible?
Solution Summary: The author explains the condition for the incompressible fluid. Write the expression of the three-dimensional velocity field in Cartesian coordinates.
Consider the following steady, three-dimensional velocity field in Cartesian coodinates:
V
→
=
(
u
,
v
,
w
)
=
(
a
x
y
2
−
b
)
i
→
−
2
c
y
3
j
→
+
d
x
y
k
→
, where a, b, c and d are constants. Under what conditions is this flow field incompressible?
This is an old practice exam. Fce = 110lb and FBCD = 62 lb but why
Quiz/An eccentrically loaded bracket is welded to the support as shown in Figure below. The load is static. The weld size
for weld w1 is h1 = 4mm, for w2 h2 = 6mm, and for w3 is h3 =6.5 mm. Determine the safety factor (S.f) for the welds.
F=29 kN. Use an AWS Electrode type (E100xx).
163 mm
S
133 mm
140 mm
Please solve the question above
I solved the question but I'm sure the answer is wrong
the link :
https://drive.google.com/file/d/1w5UD2EPDiaKSx3W33aj
Rv0olChuXtrQx/view?usp=sharing
Q2: (15 Marks)
A water-LiBr vapor absorption system incorporates a heat exchanger as shown in
the figure. The temperatures of the evaporator, the absorber, the condenser, and the
generator are 10°C, 25°C, 40°C, and 100°C respectively. The strong liquid leaving
the pump is heated to 50°C in the heat exchanger. The refrigerant flow rate through
the condenser is 0.12 kg/s. Calculate (i) the heat rejected in the absorber, and (ii) the
COP of the cycle.
Yo 8
XE-V
lo
9
Pc
7
condenser
5
Qgen
PG
100
Qabs
Pe
evaporator
PRV
6
PA
10
3
generator
heat exchanger
2
pump
185
absorber
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