Mechanical Engineering - Hydraulics and Fluid Mechanics - Discussion
Discussion Forum : Hydraulics and Fluid Mechanics - Section 2 (Q.No. 15)
15.
A water tank contains 1.3 m deep water. The pressure exerted by the water per metre length of the tank is
Discussion:
25 comments Page 2 of 3.
Vaibhav said:
8 years ago
Can anyone explain me how that area came?
Vikaah Choudhary said:
8 years ago
Good explanation, thanks @Suman.
Ram said:
8 years ago
Thank you all for the explanation.
Waseem iqbal said:
8 years ago
Hydraulic force P= rAh'.
Where h' = depth of center of gravity = h/2 in this case.
So P = r (L*h) h/2 = 9.81 * (1.3)^2 /2. ( L cancel out for per meter length).
Where h' = depth of center of gravity = h/2 in this case.
So P = r (L*h) h/2 = 9.81 * (1.3)^2 /2. ( L cancel out for per meter length).
Arun kumar said:
8 years ago
P=ρgh^2/2
ρ=1000
g=9.81
h=1.3
Than put,
P=1000*9.81*1.3*1.3/2=8289.45N=8.289KN.
ρ=1000
g=9.81
h=1.3
Than put,
P=1000*9.81*1.3*1.3/2=8289.45N=8.289KN.
(1)
Naresh said:
8 years ago
Yes right @Arun Kumar.
Here it is not mentioned that tank is a triangular or rectangular or as square tank.
so the pressure at a particular point is given by p=wh^2/2 and density of water is given by pgh.
Here it is not mentioned that tank is a triangular or rectangular or as square tank.
so the pressure at a particular point is given by p=wh^2/2 and density of water is given by pgh.
Jsh said:
8 years ago
Pressure =density *gravity *cg of projected area.
Cg lies at half of height.
Force = pressure * area.
Area = height * length.
Force =ρg(h/2)*h*l.
F=8.2.
Cg lies at half of height.
Force = pressure * area.
Area = height * length.
Force =ρg(h/2)*h*l.
F=8.2.
(1)
Sushil Dumka said:
8 years ago
Yes, the answer is right,
8.29 kN.
Pressure diagram becomes triangular and area of triangular is 1/2 wh^2.
8.29 kN.
Pressure diagram becomes triangular and area of triangular is 1/2 wh^2.
(1)
Aman kumar said:
8 years ago
Is it pressure exerted per unit length or pressure force exerted per unit length? Please tell me.
Rakshit Khatri said:
7 years ago
@Aman Kumar.
The pressure exerted by the water per metre length of the tank.
The pressure exerted by the water per metre length of the tank.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers