fluid mechanics pressure measurement ppt

See Fig.7.73. Academic year. Results indicate that the cavity pressure drop prior to surface closure is an order of magnitude greater than previously assumed. Suppose the pipe contains water, and mercury is used as the measuring liquid. . ii. . General Energy Equation 8. Figure shows one of the many types of mechanical pressure gauges in use today. Pressure measurement operations will be conducted by using U-tube and inclined tube manometers. ¦ Fi 0 Viscous/Inviscid Steady/Unsteady Compressible/ Incompressible ¦ Fi! Flow measurement B. Fluid properties C. Fluid statics D. Energy, impulse, and momentum equations E. Pipe and other internal flow 7% of FE Morning Session Up to 15% of FE Afternoon Session Afternoon (Depends on Discipline) A. Bernoulli equation and mechanical energy balance B. Hydrostatic pressure INTI International University. Water, Oils, Alcohols, etc. In the English system of units, pressure is expressed as "psi" or lbf/in 2. Fluid mechanics is a discipline within the broad field of applied mechanics concerned with the behaviour of liquids and gases at rest or in motion. Fluid mechanics itself is also divided into several categories. . The local atmospheric pressure is 15 psia. Fluid Mechanics 9-10a Fluid Measurements Pitot Tube – measures flow velocity • The static pressure of the fluid at the depth of the pitot tube (p0) must be known. Share. Pressure distribution for a fluid at rest A force balance in the z direction gives: For an infinitesimal element (Dz 0) Incompressible fluid Liquids are incompressible i.e. Zain Chughtai. LAB REPORT EXPERIMENT # 1 PRESSURE MEASUREMENT PNGE 211: AN INTRODUCTION TO FLUID MECHANICS Made By: Nabeel Ahmed Khan Submitted To: Doruk Alp Date of Submission: 15/04/16 OBJECTIVE The purpose of this experiment is to demonstrate different pressure measurement methods. . Remote sensing is often more convenient than putting a measuring device into a system, such as a person’s artery. Fluid Mechanics Overview Gas Liquids Statics Dynamics Air, He, Ar, N 2, etc. … pressure of a fluid stays constant, the gauge pressure of the same fluid will vary as atmospheric pressure changes. The undiminished transmission of pressure through a fluid allows precise remote sensing of pressures. Pressure always acts inward normal to any surface (even imaginary surfaces as in a control volume). FIGURE 3–2 Two basic pressure gages. Selection of pressure gauges depends upon the location and type of fluid flow. PRESSURE MEASUREMENT Pressure is an important variable in fluid mechanics and many instruments have been devised for its measurement. Fluid Mechanics Introduction Video Lecture From Properties of Fluid Chapter of Fluid Mechanics Subject For All Students. For example, when a car drives up a mountain (atmospheric air pressure decreases), the (gauge) tire pressure goes up. . . Fluids are a collection of randomly arranged molecules held together by by weak cohesive forces. . . If the pitot tube is to be used to measure the velocity of a liquid in a pipe, then we must adopt some method to know the static pressure head H. For instance, we may use a pitot tube and a vertical piezometer tube and measure the difference of the liquid levels in the two tubes. . . FERC FERC. . ASSIGNME NT/ TEST/PROJ ECT Assignment I Test I. COMPLETI ON DATE* … Thought Questions
Why is the electricity produced at the bottom of dams?
When you catch a deep-sea fish, why does its eyes pop-out?
Why do your ears pop on an airplane or up in the mountains?
Chapter 23