Turbulence After the Bend

Slides:



Advertisements
Similar presentations
Syringe Viscometer.
Advertisements

Fluid Mechanics for Mechanical Engineering Viscous Flow in Ducts
Two Phase Pipeline Part II
Aero-Hydrodynamic Characteristics
Motion of particles trough fluids part 1
Experiment 8 : Minor Losses
53:071 Principles of Hydraulics Laboratory Experiment #2 Local Losses in Pipe Flows Li-Chuan Chen, Marian Muste, and Larry Weber.
VIII. Viscous Flow and Head Loss. Contents 1. Introduction 2. Laminar and Turbulent Flows 3. Friction and Head Losses 4. Head Loss in Laminar Flows 5.
Fluid Mechanics and Applications Inter American Chapter 6 MEEN 3110 – Fluid Mechanics and Applications Fall Lecture 06 LOSSES IN PIPE SYSTEMS.
Pipeline Hydraulics.
CE 230-Engineering Fluid Mechanics Lecture # BERNOULLI EQUATION.
Engineering H191 - Drafting / CAD The Ohio State University Gateway Engineering Education Coalition Lab 4P. 1Autumn Quarter Transport Phenomena Lab 4.
MECH 221 FLUID MECHANICS (Fall 06/07) Chapter 9: FLOWS IN PIPE
CE 230-Engineering Fluid Mechanics Lecture # 28 Laminar flow in circular pipes.
Reynolds Experiment Laminar Turbulent Reynolds Number
CE 230-Engineering Fluid Mechanics
Pertemuan CLOSED CONDUIT FLOW 1
CEE 331 Fluid Mechanics April 17, 2017
Fluid Mechanics 08.
ASEE Southeast Section Conference INTEGRATING MODEL VALIDATION AND UNCERTAINTY ANALYSIS INTO AN UNDERGRADUATE ENGINEERING LABORATORY W. G. Steele and J.
Flow Sensors.
Recent Advances in Condensation on Tube Banks P M V Subbarao Professor Mechanical Engineering Department I I T Delhi Reduce the Degree of Over Design!!!
Pipe Flow Considerations Flow conditions:  Laminar or turbulent: transition Reynolds number Re =  VD/  2,300. That is: Re 4,000 turbulent; 2,300
Laminar Flow in Pipes and Annuli
CE Fluid Mechanics Diogo Bolster
MER Design of Thermal Fluid Systems Pumps and Fans Professor Anderson Spring Term
Lesson 15 Surge and Swab Pressures
Lesson 12 Laminar Flow - Slot Flow
Li-Chuan Chen, Marian Muste, and Larry Weber
Experiment 5 Pipe Flow-Major and Minor losses ( review)
Water amd wastewater treatemt Hydraulics
Chapter Six Non-Newtonian Liquid.
Lesson 21 Laminar and Turbulent Flow
 V 1 2 / 2 + p 1 /  + gz 1 =  V 2 2 /2 + p 2 /  + gz 2 + h lT h lT = h l + h m HEADLOSSHEADLOSS.
CL-232 Lab Experiment FM-202 : Nature of Flow Staff TA’S Mr. Amit Shinde Munish Kumar Sharma Mr. B.G. Parab Laxman R. Bhosale.
Estimating The Viscosity Bio-fluids Bien 301 Jasma Batham.
Lesson 23 HEAD LOSS DEFINE the terms head loss, frictional loss, and minor losses. DETERMINE friction factors for various flow situations using the Moody.
30 th June 20111Enrico Da Riva, V. Rao Parametric study using Empirical Results June 30 th 2011 Bdg 298 Enrico Da Riva,Vinod Singh Rao CFD GTK.
PIPELINE DESIGN ‘ THE ENGINEERING APPROACH’ SESSION OBJECTIVES THE ENGINEERING EQUATIONS TRANSMISSION LINE GAS FLOW LIQUID SYSTEM.
© Pritchard Introduction to Fluid Mechanics Chapter 8 Internal Incompressible Viscous Flow.
Scientific Method Unit Vocabulary 1. Scientific method – involves a series of steps that are used to investigate a natural occurrence. 2. Problem/Question.
Unit 1 Physics on the go Topic 2 Materials: Viscosity.
VISCOUS FLOW IN CONDUITS  When we consider viscosity in conduit flows, we must be able to quantify the losses in the flow Fluid Mechanics [ physical.

Friction Factors, Pumping and You Understanding how friction affects your bottom line.
Osborne Reynolds Fluid Flow Demonstration Senior Design Project EML 4552 Group #1 John Curry Antoine Berret Edmund Laryea Michael McIntyre.
Heat Transfer Su Yongkang School of Mechanical Engineering # 1 HEAT TRANSFER CHAPTER 6 Introduction to convection.
Major loss in Ducts, Tubes and Pipes
Thermal Considerations in a Pipe Flow (YAC: 10-1– 10-3; 10-6) Thermal conditions  Laminar or turbulent  Entrance flow and fully developed thermal condition.
Heat Transfer in a Packed Bed Reactor with Downflow of Air and Water
Martti Veuro.
Internal Incompressible
Energy Loss in Valves Function of valve type and valve position
Date of download: 10/22/2017 Copyright © ASME. All rights reserved.
Date of download: 11/7/2017 Copyright © ASME. All rights reserved.
Hydrotransport 17 Effect of comminuted flint on pumping chalk slurry in the 92 km Kensworth – Rugby pipeline N.J. Alderman1 N.I.Heywood1 and D. J. Clowes2.
Date of download: 12/16/2017 Copyright © ASME. All rights reserved.
Flow through tubes is the subject of many fluid dynamics problems
Chapter 4. Analysis of Flows in Pipes
Heat Transfer Coefficients
Subject Name: FLUID MECHANICS
Review of ChE Fluid Mechanics
Viscous Flow in Pipes.
CHAPTER 6 Viscous Flow in Pipes
REAL FLUIDS SECTION 4.
Major and Minor Losses in Pipes
Part VI:Viscous flows, Re<<1
Fluid Mechanics Lectures 2nd year/2nd semister/ /Al-Mustansiriyah unv
TURBULENT TRANSPORT MECHANISM
Presentation transcript:

Turbulence After the Bend Jeffery Aguiar Drew Hayes University of the Pacific CVL-130 Fluid Mechanics Dr. Camilla Saviz

Presentation Topics Purpose Background theory Experimental design Results Analysis Suggested improvements Conclusion

Introduction Constructed 3 water pipes that tested the theory of turbulence after a bend Measured the length of turbulence for each pipe a total of three times Analyzed results & compared with theory Implemented & suggested further improvements of the experiment

Purpose Theory predicts that ~20 diameters away from a 90º bend a turbulent regime is witnessed iff the flow is laminar before the bend After the set length of turbulence the flow then transitions back to laminar

Theory Calculate flow rate using manometer Q = Ko(H/G)1/2 where Ko= Constant H = displaced height in manometer [in] G = 1

Theory (cont’d) Reynolds Number (<2300, laminar) vd Re =  where v = velocity [ft/s]  = viscosity [ft2/s] d = diameter [ft]

Experimental Design Design of a single apparatus Figure 1- Experimental apparatus used to measure turbulent regime

Actual Design Figure 2- Apparatus used to measure turbulent regime before drilling injection points

Procedure Set up the system Check for laminar flow Inject dye Measure turbulent zone length Three for each apparatus & three manometer readings Repeat with varying pipe diameters

Results Figure 3- Plot of the calculated of L/D values versus Reynolds

Results (cont’d) Figure 4- Plot of the calculated of the length of the turbulent regime values as function of pipe diameter

Analysis Agreement with the theory (~20) Direct relationship between l/d values & pipe diameter Accuracy of l/d values (avg. D=1.03,max D=2.33)

Suggested Improvements Problem Solution Wall friction Smooth pipe (e/d) Injection point Longer needle Transition point Larger diam. pipe Air bubbles Air release valve Measured Length Ruler along pipe

Conclusion Observed turbulence after the bend Measured the length of turbulence Confirmed the theory

Now please enjoy our video ! Acknowledgements Dr. Camilla Saviz Adrian Now please enjoy our video !