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I-8 Index<br />

Orifice meter, 119, 442<br />

Outer layer, 405<br />

Overexpanded nozzle, 608,<br />

video V11.6<br />

Overlap layer, 405<br />

video V11.5,<br />

Panel method, 702<br />

Parallel plates, 309<br />

Pascal, B., 28, 39<br />

Pascal, 13<br />

Pascal’s law, 39<br />

Pathline, 154, video V4.11<br />

Pelton wheel, 674, video V5.6, video V12.2,<br />

video V12.3<br />

Perfect gas law, 12, 615, video V11.1<br />

Physical properties of <strong>fluid</strong>s:<br />

of air, 717, 718<br />

of common gases, 14, 714<br />

of common liquids, 12, 715<br />

of U.S. Standard Atmosphere, 719, 720<br />

of water, 716<br />

Piezometer, 50, 105, video V2.2<br />

Piezometric head, 124, video V2.2<br />

Pipe:<br />

aging, 412<br />

compressible adiabatic flow in, see Fanno line flow<br />

developing flow in, 388<br />

fittings, 422<br />

flow meter, 441<br />

flowrate, 441<br />

fully developed flow in, 313, 388, 390<br />

head loss, see Head loss<br />

heat transfer in, see Rayleigh line flow<br />

hydraulically smooth, 413<br />

laminar flow in, 313, 385, 388, video V6.13<br />

noncircular, 425<br />

relative roughness of, 411<br />

smooth, 413<br />

transitional flow in, 385, 399, video V8.2,<br />

video V8.3, video V8.8<br />

turbulent flow in, 385, 399, video V8.2,<br />

video V8.3<br />

Pipe system components, 384<br />

Pipe systems, 384, video V6.14<br />

loop, 438<br />

multiple pipes, 437<br />

networks, 440<br />

parallel, 437<br />

series, 437<br />

single pipes, 428<br />

Pi terms, 335, 336, 345<br />

Pi theorem, 335<br />

Pitot, H., 28<br />

Pitot-static tube, 106, 109, video V3.8<br />

Pitot tube, 124, 632, video V3.8<br />

Plane Poiseuille flow, 315<br />

Planform area, 497<br />

Poise, 20<br />

Poiseuille, J., 28, 313, 393<br />

Poiseuille flow, 313, 393, video V6.13<br />

plane, 315<br />

Poiseuille’s law, 315, 393<br />

Polar coordinates, 75<br />

Polar diagram, lift-drag, 516<br />

Position vector, 148<br />

Potential, velocity, 284<br />

Potential energy, 103, 223<br />

Potential flow theory, 284, 305, video V6.9<br />

basic plane flows, 286, video V6.6, video V6.7,<br />

video V6.10<br />

doublet, 293<br />

sink, 288<br />

source, 288<br />

uniform flow, 287<br />

vortex, 290<br />

singularity, 289<br />

superposition of basic plane<br />

flows, 295, video V6.5<br />

flow past cylinder, 300<br />

flow past half-body, 296, video V6.5<br />

flow past Rankine oval, 298<br />

flow past rotating cylinder, 303<br />

Potential function, 284<br />

Pound:<br />

force, 8<br />

mass, 8<br />

Power, 2, 224<br />

coefficient, 666, 683<br />

units of, 7<br />

Power-law velocity profile, 406<br />

Power specific speed, 684<br />

Prandtl, L., 27, 29, 405, 468<br />

Prandtl boundary layer equations, 474<br />

Prediction equation, 355<br />

Pressure:<br />

absolute, 13, 48<br />

atmospheric, 13, 719, 720<br />

center of, 58, 60<br />

coefficient, 349, 496<br />

definition, 13<br />

dynamic, 105<br />

gage, 13, 48<br />

hydrostatic, 42, 105<br />

isentropic stagnation, see Isentropic stagnation<br />

properties<br />

measurement of, 48, 109, video V2.2, video V2.3<br />

at a point, 38, 279, 307<br />

stagnation, 105, 106, 632, video V3.7<br />

static, 105<br />

suction, 48<br />

thermodynamic, 105<br />

total, 105, 106<br />

vacuum, 48<br />

vapor, 23<br />

Pressure coefficient, 349, 496<br />

Pressure distribution:<br />

airfoil, 463<br />

automobile, 513, video V2.1<br />

converging–diverging nozzle, 608<br />

cylinder, inviscid flow, 301, 491<br />

cylinder, viscous flow, 491<br />

entrance of pipe, 388, 417<br />

hydrostatic, 42<br />

in rigid-body motion, 72, 75<br />

in a rotating <strong>fluid</strong>, 75<br />

standard atmosphere, 47, 419, 420<br />

Pressure drag, see Drag<br />

Pressure drag coefficient, 496

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