AS 2360.0-1993

1-AS 2360.0-1993 MEASUREMENT OF FLUID FLOW IN CLOSED CONDUITS - VOCABULARY AND SYMBOLS
4-PREFACE
7-1 Scope
8-2 Symbols
10-3 Subscripts
10-4 General terms in fluid mechanics
10-4.1 flow-rate:
10-4.2 mean flow-rate:
10-4.3 velocity distribution:
10-4.4 flow profile:
10-4.5 swirling flow:
10-4.6 swirl angle,
10-4.7 mean axial fluid velocity,
10-4.8 non-dimensional [relative] velocity,
10-4.9 hydraulic diameter,
10-4.10 kinetic energy coefficient,
11-4.11 static pressure:
11-4.12 Dynamic pressure
11-4.13 total pressure:
11-4.14 stagnation pressure:
11-4.15 Reynolds number,
11-4.16 Mach number,
11-4.17 Strouhal number,
11-4.18 arithmetical mean deviation of the (roughness) profile
12-4.19 equivalent uniform roughness,
12-4.20 universal head loss coefficient,
12-4.21 friction velocity,
12-4.22 steady flow:
12-4.23 pulsating flow of mean constant flow-rate:
12-4.24 unsteady flow:
12-4.25 laminar flow:
12-4.26 turbulent flow:
12-4.27 fully rough turbulent flow:
12-4.28 transition flow:
12-4.29 Coanda effect:
12-4.30 Doppler effect:
12-4.31 ratio of the specific heat capacities,
12-4.32 isentropic exponent,
13-4.33 compressibility factor,
13-5 Uncertainties
13-5.1 average value,
13-5.2 sensitivity [influence] coefficient,
13-5.3 frequency distribution:
13-5.4 population:
13-5.5 sample:
13-5.6 true value:
13-5.7 number of degrees of freedom,
13-5.8 deviation:
13-5.9 experimental standard deviation,
14-5.10 experimental variance,
14-5.11 weight of measurement,
14-5.12 calibration:
14-5.13 normal distribution; Laplace-Gauss distribution
14-5.14 method of least squares:
14-5.15 regression:
14-5.16 (absolute) error of measurement:
14-5.17 outlier:
14-5.18 spurious errors:
14-5.19 random error:
14-5.20 systematic error:
14-5.21 elemental error:
15-5.22 standard error of estimate,
15-5.23 confidence limits:
15-5.24 confidence level:
15-5.25 Students distribution
15-5.26 uncertainty,
15-5.27 accuracy:
15-5.28 measurand:
16-6 General terms related to the devices
16-6.1 flowmeter:
16-6.2 meter tube:
16-6.3 primary device:
16-6.4 secondary device:
16-6.5 output signal:
16-6.6 calibration factor of the primary device:
16-6.7 maximum flow-rate:
16-6.8 minimum flow-rate:
16-6.9 flow-rate range:
16-6.10 transitional flow-rate:
16-6.11 nominal flow-rate:
17-6.12 full-scale flow-rate:
17-6.13 pressure loss
17-6.14 working conditions:
17-6.15 installation conditions:
17-6.16 straight length:
17-6.17 irregularity:
17-6.18 flow conditioner [straightener]:
17-6.19 swirl reducer:
17-6.20 flow stabilizer:
17-6.21 wall (pressure) tapping:
17-6.22 drain holes:
17-6.23 vent holes:
17-7 Differential pressure devices
17-7.1 differential pressure device:
17-7.2 primary device (of a differential pressure device)
17-7.3 orifice; throat
17-7.4 diameter ratio
17-7.5 Pressure tappings; pressure taps
18-7.6 piezometer ring:
18-7.7 carrier ring:
18-7.8 annular chamber:
18-7.9 orifice plate:
20-7.10 nozzle:
20-7.11 Venturi tube:
21-7.12 differential pressure,
21-7.13 differential pressure ratio,
21-7.14 pressure ratio,
21-7.15 acoustic ratio,
21-7.16 velocity of approach factor,
21-7.17 discharge coefficient,
21-7.18 flow coefficient,
21-7.19 expansibility [expansion] factor,
21-8 Critical flow measurement
21-8.1 critical flow:
22-8.2 critical flow function,
22-8.3 real gas critical flow coefficient,
22-8.4 critical pressure ratio:
22-8.5 sonic nozzle:
22-8.6 sonic [critical] Venturi nozzle:
22-9 Velocity-area methods
22-9.1 index of asymmetry,
23-9.2 points of mean axial fluid velocity:
23-9.3 peripheral flow-rate:
23-9.4 current-meter:
23-9.5 propeller-type current-meter:
23-9.6 self-compensating propeller:
23-9.7 spin test
23-9.8 yaw probe:
23-9.9 Pitot tube:
24-9.10 static pressure tapping:
24-9.11 total pressure tapping:
24-9.12 differential pressure
24-9.13 stationary array:
24-10 Tracer methods
24-10.1 dilution methods:
24-10.2 transit time method:
24-10.3 concentration of the tracer,
24-10.4 dilution ratio [rate],
24-10.5 injection cross-section [station]:
24-10.6 sampling cross- section [station]
24-10.7 measuring section:
24-10.8 mixing length:
24-10.9 time of passage of the tracer cloud:
24-10.10 counting rate:
24-11 Electromagnetic methods
24-11.1 electromagnetic flowmeter:
24-11.2 meter tube (of an electromagnetic flowmeter):
24-11.3 meter electrodes:
25-11.4 magnetic field:
25-11.5 electrode signal:
25-12 Weighing and volumetric methods
25-12.1 weighing method:
25-12.2 volumetric method:
25-12.3 diverter:
25-12.4 calibrated measuring [volumetric] tank:
25-12.5 buoyancy correction:
25-12.6 piston prover:
25-12.7 bell prover:
25-12.8 liquid displacement system:
25-12.9 soap-film burette:
25-12.10 ring balance:
29-13 Instability methods
29-13.1 fluidic flowmeter; nutating flowmeter:
29-13.2 vortex flowmeter:
29-13.3 wake oscillator:
30-13.4 bluff body:
30-14 Variable-area methods
30-14.1 constant-head meter:
30-14.2 variable-head meter:
30-14.3 cone-and- float meter:
32-14.4 orifice-and-plug meter:
32-14.5 cone-and-disc meter:
33-14.6 gate-type meter:
33-14.7 spring-loaded variable-head meter:
33-14.8 annular space:
33-14.9 float; sinker:
34-15 Ultrasonic methods
34-15.1 ultrasonic flowmeter:
34-15.2 primary device (of an ultrasonic flowmeter):
34-15.3 ultrasonic transducer:
34-15.4 clamp-on meter:
34-15.5 diagonal beam:
34-15.6 single-path diagonal-beam meter:
34-15.7 multi-path diagonal-beam meter:
34-15.8 time-of-flight ultrasonic meter; transit time meter
36-15.9 beam-deflection meter:
36-15.10 phase-shift meter:
36-15.11 Gaussian integration method:
36-15.12 leading edge:
36-15.13 sing around method:
36-15.14 acoustic matching layer:
36-16 Other methods
36-16.1 cross-correlation meter:
36-16.2 Doppler meter:
36-16.3 multichannel cross-correlation:
38-16.4 multiple- sensor cross- correlation:
38-16.5 turbine flowmeter:
38-17 Meters
38-17.1 Definitions applicable to all meters
38-17.2 Fluid meters
38-17.3 Water meters
38-17.4 Gas meters
38-17.5 inferential flowmeter: