lab 4

Calculations of bead #30 all
large
Radius 2 33 mm 2 vag
n
(Psphere-Poil)
=
.
=




=0 00233m .
9V +


Slope : 4 .
101cm/s n =
2(0 0233m)2(9 8) .
.




(2150kg/ms - 875kg/m3)
=
0 04101M/s
. 9 (0 4101).




0 368Pa S
density kg/m2 n=
.


: 2150 .




Oll #30 =
875 kg/m3



Calculations of large bead #50 oil

radius =
2 33mm .
n= 2 reg (Psphere -
Poll
= 0 . 00233m 9Vt

Slope=2 076 cm/s .
n =
2 (0 . 00233)2(9 8) (2150 .
-
890)
= 0 .
02076 M/s 9 (0 02076) .




density : 2150kgIms n = 0 .
718 Da
.

Oll #50 =
890kg/m3


average radius


# 30 Ol :




ran
V+ 1 202cm/s
.




2g (Pspwere-Pal)




3
=0 01202 M/s
.




n =
0 368 Pa S r
~ 01202(9)(0 368)
. .

. = .




Poll 875KgIms 2 (9 8) (2105 875)

averagea
-
: .




Psphere=2150kgIms v= 1 26mm
.
ro

2

# 50 Oll :

Vavg= 1 26
.
+ 1 26.




ran
V= 0 605cm/s
.
2

=0 00609m/s 2g (Pspwere-Pal) 1 26 mm
rang :
. .




n =
0 718 Pa S r
~ 00605(9)(0 718)
.
. = .
.




Pol =
890kg/ms 2 (9 8) (2105.
-

890)

Psphere=2150kg/m3 v= 1 26 mm
.




-




20°C 20°




548 8 Da .
603 .
7 Pa



0 .
0344 cm/ 0 . 0234 cm3s

0 .
00079 Pa S .

0 00128 Pa S
.
.




Sample calculation
:




marked unmarked r= oQuL/typ

-
:


(548 8)
= (1 85x10- 3))
/
%(5 747x109)
.




VIt nr+g 51870
.



Q

n
Q v
=
= = = .




8QL 747x10-9m2/s 173mm
= 5/932 = 5 .
r= 0 .




= 5 . 365m2 U = (0 000K)"(548 .
. 8)

8(5 365x10-9) (0 32)
.
.




n = 1 05. x 10.3 Pa . S