Measurement_of_fluid_flow - Measurement of fluid flow...

Info icon This preview shows pages 1–6. Sign up to view the full content.

Measurement of fluid flow Chapter 15 Engineering Measurements Dr. Belal Gharaibeh August 1, 2011
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

Flow measurement methods Flow meters 1. Obstruction meters (comprisable and incompressible fluids) a. Venture b. Flow nozzles c. Orifices 2. Velocity probes 1. Pressure probes 2. Scattering techniques
Image of page 2
15.2 Flow Characteristics Very low velocity fluid particles “flow in parallel lines with respect to the walls of the conduit (pipe) velocity is large at the center and zero at the wall (laminar flow) At a “critical velocity” the fluid particles motion becomes random and complex and the flow is called turbulent flow
Image of page 3

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

Flow Characteristics, continue Reynolds number is a dimensionless number used to separate the laminar from turbulent flow : Re=inertial force/viscous force D=a sectional dimension of the fluid stream Ρ =density V=velocity of fluid μ=the absolute viscosity of the fluid
Image of page 4
Flow..continue Critical Reynolds number for pipes between 2100 and 4000 Volume flow rate: integral of velocity distribution over the cross sectional area Average velocity Flow meters measure Q and/or V, while velocity probes measure V(x,y)
Image of page 5

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

Image of page 6
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern