hydrostaticsfluid prac report

8/20/2019 HydrostaticsFluid Prac Report

http://slidepdf.com/reader/full/hydrostaticsfluid-prac-report 1/6

Student Name Student Number C.Munsamy 21416311R.Naidoo 21410445S.Lutchmiah 21350006P.Mthembu 21512087.Moyana 21517171C.M.Mto!o 21520141

"nt#oduction

Hydrostatic pressure is, the pressure exerted by a fuid at

equilibrium due to the orce o gravity. A fuid in this condition is

known as a hydrostatic fuid. So our Hydrostatic pressure lab was

to determine the hydrostatic pressure o water on a fat surace.

Adding weight and then lling the tank with water to the point

where the apparatus was in equilibrium. So we can calculate theorce on the fat surace using the given equations.

Abstract

$he e&'e#iment sho(s the hyd#ostatic th#ust actin) on an ob*ect in a +uid

,(ate#-. ie#ent de'ths (e#e #eco#ded as the (ei)hts (e#e measu#ed.

$he system sta#ted at e/ui!ib#ium o# each indiidua! #eco#ded (ei)ht.

Aim

!uid

Mechanics ""

yd#ostatics

#at Co'y

#ou' 8 Monday



• $o dete#mine hyd#ostatic th#ust actin) on a '!ane su#ace (hen the

su#ace is 'a#tia!!y subme#)ed and u!!y subme#)ed in (ate#

• ete#mine the 'osition o !ine o action

Apparatus

• $he 112 yd#ostatic P#essu#e ''a#atus

• ate# 9u)

• Measu#in) bea:e#

• Measu#in) system

• ate#

• Set o masses

• Len)th o sma!! bo#e tubin)

Procedure1. dd "nitia! masses and add (ate# to the system. ;/ui!ib#ium must be

#eached.2. $a:e #eadin)s o tube and mass3. Re'eat the '#ocess by addin) die#ent masses to the han)e#.

;/ui!ib#ium must be #eached beo#e #eco#din) mass and de'th4. ate# shou!d be added #om time to time to :ee' system in

e/ui!ib#ium

Results

Readings

Readin) e'th ,mm- Mass ,)-1 <8.5 2002 105.5 230

3 117.5 2804 122.5 3005 12< 3306 141 3807 146.5 4008 154 430< 167.5 480

Calculations

!ormulae or" #using an example o $%%g or each&



Hydrostatic Thrust

F = ρg bd

3

2

F =1000∗9. 81∗0 .075∗0 .0985

3

2

F = 3.!"

#$perimental Centre o% Pressure

h' ' =

mgL

F

h' ' =0 .2∗9 .81∗0 .275

3 .569

h&= '.(() m

*easured Turning *oment

' ( h) * !

' ( %.++$ * -./

' ( %.-/ 0m

Theoretical Centre o% Pressure

h' ' = H −

d

3

h' ' =0.2−

0.0985

3

H11( %.+2$ m

Turning *oment

' ( h)* !

' ( %.+2$ *-./

' ( %./2 0m



+iscussion $he o#ce a''!ied in the system e#tica! ace o buoyant mate#ia! counte# acts

the mass added to the han)in) a#m. So (e :no( that i (e moe a(ay #om the



sea !ee! the '#essu#e (i!! chan)e eithe# (ith ai# o# (ate#. So in ou# e&'e#iment

a!so chan)e in '#essu#e because o the (ei)ht o the (ate# aboe and buoyant

o#ces c!ea#!y sho( the '#o'e#ties o (ate#. $he (ate# '#essu#e (as so hi)h that

(e add the mass 50 ) to 430) een sti!! /uad#ant (as ab!e to su''o#t it in static

e/ui!ib#ium. So the idea !et us to be!iee that the cu#ed a#ea a!!o(s o# a !a#)e#

su#ace (ith (hich the (ate# can act u'on o# !ess chan)e in de'th.

Recommendationsensity (as ta:en as 1000 :).m3 ho(ee# this density on!y a''!ies to 4

e)#ees Ce!sius Readin)s (e#e ta:en on a day (ith much hi)he# tem'e#atu#e

and density (ou!d hae been die#ent (hich (ou!d aect the ca!cu!ations.

Re%erences1. #m=e!d Limited 2002 "nst#uction Manua! 116> Rin)(ood am'shi#e.

?24 1@ ;n)!and

2. 9ohn C!ayden Centre Of Pressure htt'ABB(((.*ccii!en)inee#.comBcent#eo'#essu#e.htm

http://www.jfccivilengineer.com/centre_of_pressure.htm

http://www.jfccivilengineer.com/centre_of_pressure.htm

hydrostaticsfluid prac report

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