• Like
Elementary Fluid Mechanics by Rasikh Tariq
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

Elementary Fluid Mechanics by Rasikh Tariq

  • 230 views
Published

 

Published in Automotive
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Be the first to comment
No Downloads

Views

Total Views
230
On SlideShare
0
From Embeds
0
Number of Embeds
0

Actions

Shares
Downloads
9
Comments
0
Likes
1

Embeds 0

No embeds

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
    No notes for slide
  • In numerous Actual Physical Situation we don’t need to knew about the Parameters Normal to the Flow. But in certain situations knowing these Parameters Normal to Streamline is Important. Like in the case of Tornado , where parameters Normal to Streamline are Important rather than Along the Streamline. R= Local Radius of Curvature of the Streamline

Transcript

  • 1. Elementary Fluid Mechanics By Rasikh Tariq Department of Mechanical Engineering - Mohammad Ali Jinnah University, Islamabad Campus 1
  • 2. Concept of Streamline & NormalThe lines that are tangent to the velocity Vectors throughout the flow field. 2
  • 3. Balancing Newton’s 2nd LawAssumptions Inviscid Fluid Analysis Steady-Flow AnalysisInviscid Fluid Analysis:- The Fluid is assumed to have ZERO Viscosity.Steady Flow Analysis:- Fluid properties (Either Intensive or Extensive) that areindependent of TIME. 3
  • 4. Balancing Newton’s 2nd Law 4
  • 5. Balancing Newton’s Law Normal to Streamline 5
  • 6. Balancing Newton’s Law Normal to StreamlineThe equation tells us Pressure Variation along the path Normal toStreamline.i.e Depending On the Path.Assumptions:- Inviscid Flow Steady-flow Fluid Analysis Valid for Fluids that are only experiencing Pressure & Weight. 6
  • 7. Balancing Newton’s 2nd Law Along the StreamlinePressure Variation Along the Streamline i.e. Path FunctionAcross 2 different Points i.e. Point Function is also Bernoullis Equation.Assumptions:-  Invscid Flow Analysis  Steady Flow Analysis 7
  • 8. Further Assumption – Bernoullis EquationFor Incompressible Flow i.e. Density is constant along theStreamline is also Bernoullis Equation.Assumptions:-  Inviscid Flow Analysis  Steady Flow Analysis  Incompressible Fluid Analysis  Only applicable along the StreamlineRestrictions:-  Rotational Effects  Concept of Vorticity  No External Mechanical Devices (Pumps & Turbines) 8
  • 9. Effects of Compressibility For Incompressible Flow i.e. Density is constant along the StreamlineAssumptions:-  Compressible  Isentropic (Internally Reversible & Adiabatic Process or constant Entropy)  Steady FlowWhere k= 9
  • 10. Concept of Stagnation PointFluid Velocity is ZERO at Stagnation Point. 11
  • 11. Applying Bernoullis Equation Stagnation Point 12
  • 12. Applying Bernoullis Equation- Free Jet By Balancing Bernoullis Equation, we get. 1 h 2 d 13
  • 13. Applying Bernoullis Equation- Free JetCo-efficient of Contraction 14
  • 14. Applying Bernoullis Equation- Free JetCo-efficient of Contraction 15
  • 15. Applying Bernoullis Equation- Free JetCo-efficient of Contraction 16
  • 16. Applying Bernoullis Equation- Free JetCo-efficient of Contraction 17
  • 17. Flow Rate Measurement – Closed Channel Balancing Bernoullis Eq 0 0 Further Simplifying using We come up with 18
  • 18. Flow Rate Measurement – Closed ChannelOpen Channel (Lower Stream)Sluice Gate And We come up to the Result Note : But make sure, Never forget all the Assumptions 19
  • 19. Flow Rate Measurement – Closed ChannelOpen Channel (Upper Stream)Weir 20
  • 20. Flow Rate Measurement – Closed Channel Open Channel (Upper Stream) Weir AndWe come up to the Result Note : But make sure, Never forget all the Assumptions 21
  • 21. Thank youDepartment of Mechanical Engineering - Mohammad Ali Jinnah University, Islamabad Campus 22