Courses

# Fluid Dynamics Civil Engineering (CE) Notes | EduRev

## Civil Engineering (CE) : Fluid Dynamics Civil Engineering (CE) Notes | EduRev

The document Fluid Dynamics Civil Engineering (CE) Notes | EduRev is a part of the Civil Engineering (CE) Course Civil Engineering SSC JE (Technical).
All you need of Civil Engineering (CE) at this link: Civil Engineering (CE)

Chapter 5 Fluid Dynamics

• Reynolds equation  = Intertia force + gravity force + viscous force + turbulence force + pressure force 
• Navier - Stoke's equation = Intertia gravity force  +  pressure force  +  viscous force 
• Eulers equation (represents momentum equation in a 2-D, inviscid steady flow) Inertia force = gravity force  +  pressure force 
• Bernoulli's equation (Conservation of Energy) Assumptions in Bernoullis equations:

(i) fluid is ideal
(iii) flow is continous
(iv) fluid is incompressible
(v) flow is non-viscous
(vi) flow is irrotational
(vii) applicable along a stream line Z cons tant pg P where, z = elevation of datum head  • The line representing the sum of all 3 heads is known as total energy line or total head line. 
• Line joining the points of piezometric heads is known as hydraulic grade line or piezometric line. 
• Piezometric head remains constant normal to the stream lines in case of uniform diameter straight pipe. 
• Flow in pipe bend, considered as irrotational flow. Piezometric head line for outer boundary is above than the inner boundary and pressure is also more at outer boundary 
• HGL is always parallel and lower than TEL.   • Kinetic Energy correction factor (i) For laminar flow in pipes, a = 2 (ii) For f ully devel op turbulent f low in pipes, a = 1.33 Lower value is applicable for rough surface and high Reynolds number. 
• Pressure at stagnation point where velocity of flow is zero is known as the stagnation pressure. where po = static pressure and = dynamic pressure

• Flow through Pipe bend  Fx and Fy represents the reaction of bend on water. 

Torque exerted by the water on the pipe will be  V1 = tangential velocity component of absolute velocity at 1

V2 = tangential velocity component of absolute velocity at 2  Offer running on EduRev: Apply code STAYHOME200 to get INR 200 off on our premium plan EduRev Infinity!

## Civil Engineering SSC JE (Technical)

109 docs|50 tests

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

;