7/23/2019 Shingenii daralt

1/2

3. May 1, 2011ninedimensionsLeave a commentGo to comments

(fluid statics)

. (shear stress) (= 0).

I- (hydrostatic pressure)

.

(

.

. )

. ( , Pa)

= p = g h

= (kg/m3)

g= (m/s2),

h= (m)

.

, , .

.

:

(Manometer) .

U (reference fluid) (h)

.

. ( )

:

(barometer) ( )

.

( , Hg)

. .

Patm= P Hg= HgghHg

II-

:

p = p0+ gz

(p =

https://mongolengineering.wordpress.com/author/ninedimensions/https://mongolengineering.wordpress.com/2011/05/01/fluid-statics/#commentshttps://mongolengineering.wordpress.com/2011/05/01/fluid-statics/#commentshttps://mongolengineering.wordpress.com/2011/05/01/fluid-statics/#commentshttps://mongolengineering.wordpress.com/author/ninedimensions/https://mongolengineering.wordpress.com/author/ninedimensions/

7/23/2019 Shingenii daralt

2/2

p0 =

z = )

dF = p dA

. (p =

: .

Fr ` ` (Resultant Force).

(1/2)(gh) . :

Fr= p dA = (1/2) (gh) bh

.

III-

.

(centroid)

Pc= p0+ g hc= g hc (p0 0 )

hc= ycsin

Pc = g (ycsin ) = Fr/ A

Fr= g A yrsin

IV-

.

.

:

.

.

. (

.

. )

.