Page 336 - Fluid Mechanics and Thermodynamics of Turbomachinery

318 Index
Illustrative examples Logarithmic spiral 215, 216, 229
annular diffuser 52 3 Loss coefficients in IFR turbine 247 8
axial compressor 38 9, 148 9, 152 4,
173 4, 177 9
axial turbine 43, 100 1, 104 7, 118 20 Mach number
centrifugal compressor stage 211, 226 7 blade 17
centrifugal pump 207 8, 218 9 critical 78
compressor cascade 76 8 eye of centrifugal compressor 206
compressor cascade off-design 77 impeller exit 222 5
conical diffuser 50 1 inlet to a cascade 67 8
fan blade design 80 1 radial flow turbine 246 7
Francis turbine 295 6 relative 209
free-vortex flow 173 4 Manometric head of a pump 218
multistage axial compressor 148 9 Mass flow rate 17
Pelton turbine 289 90 Matrix through-flow computation 192
Penstock diameter 286 Mixed flow turbomachines 2
radial flow gas turbine 241, 24 6, Mollier diagram:
252 3, 259 60, 262 3 axial compressor stage 141
scale effects (Francis turbine) 300 1 axial turbine stage 95
three dimensional flow 173 4, 177 9 centrifugal compressor stage 203
Impeller analysis compressors and turbines 32
for centrifugal compressor 203 4 inward flow radial turbine 240
Impulse turbomachines 2 Momentum:
Impulse blading 70 1 moment of 27
Impulse turbine stage 102 one-dimensional equation of 23, 25
Incidence angle 68
loss 260 et seq.
nominal 68 National Advisory Committee for
optimum 70 Aeronautics (NACA) 70, 73
reference 68 National Aeronautics and Space
Inducer 202 Administration (NASA) 70, 71
Inequality of Clausius 29 National Gas Turbine Establishment
Interaction effect of closely spaced blade (NGTE) 137
rows 191 Net energy transfer 6
Internal energy 24 Net hydraulic power 7
Isolated actuator disc 189 Net positive suction head 14, 302
Newton, unit of force 4
Newton’s second law of motion 25
Joule, unit of energy 4
Number of impeller blades in IFR turbine
253 6
Nominal conditions 69, 74 6
Kaplan turbine 2, 9, 279, 280, 296 9
Kelvin, unit (thermodynamic temperature) 4 Nozzle efficiency 41 et seq.
Kinematic viscosity 7
Kutta Joukowski theorem 61
Off-design operation of IFR turbine 260
et seq.
Lieblein correlation 71 4 Off-design performance of compressor
Lift 59 60, 61, 126 cascade 76 8
coefficient 60, 76, 145, 153, 162, 164 5 One-dimensional flow 24
relation to circulation 61 Optimum efficiency
Lift to drag ratio 61, 62 3 IFR turbine 248 et seq.
Ljungstr¨ om steam turbine 236 7 variable geometry turbomachine 9