dynasonics Badger Meter IS-6000 Doppler User Manual

11.1.4. Lined or Built-Up Non-Metal Channels
Material
Manning Coeff.
Strickler
Coeff.
n min n Norm n max kst
1. Cement a. Neat surface 0.010 0.011 0.013 91
b. Mortar 0.011 0.013 0.015 77
2. Concrete a. Trowel finish 0.011 0.013 0.015 77
b. Float finish 0.013 0.015 0.016 67
c. Finished, with gravel on bottom 0.013 0.017 0.020 59
d. Unfinished 0.014 0.017 0.020 59
3. Wood a. Planed, untreated 0.0.1 0.012 0.014 83
b. Planed, creosoted 0.011 0.012 0.015 83
c. Unplaned 0.011 0.013 0.015 77
d. Plank with battens 0.012 0.015 0.018 67
a. Glazed 0.011 0.013 0.015 77
b. In cement mortar 0.012 0.015 0.018 67
5. Masonry a. Cemented rubble 0.017 0.025 0.030 40
b. Dry rubble 0.023 0.032 0.035 31
6. Asphalt a. Smooth 0.013 0.013 — 77
b. Rough 0.016 0.016 — 63
7. Vegetal lining 0.030 — 0.500 —
Table 5: Specific roughness coefficients (Manning & Strickler coefficients) for lined or built-up non-metal channels
11.1.5. Excavated or Dredged Channels
Material
Manning Coeff.
Strickler
Coeff.
n min n Norm n max kst
A. Earth, straight and uniform 0.016 0.022 0.035 29
B. Earth, winding and sluggish 0.023 0.030 0.040 25
C. Rock cuts 0.030 0.040 0.040 25
D. Unmaintained channels 0.040 0.070 0.140 7
Table 6: Specific roughness coefficients (Manning & Strickler coefficients) for excavated or dredged channels
11.1.6. Natural Channels
Material
Manning Coeff.
Strickler
Coeff.
n min n Norm n max kst
A. Fairly regular section 0.030 0.050 0.070 20
B. Irregular section with pools 0.040 0.070 0.100 14
Table 7: Specific roughness coefficients (Manning & Strickler coefficients) for regular/irregular sections
11.2. Bibliography
[1] DIN 4263 (2011): Kennzahlen von Abwasserkanälen und -leitungen für die hydraulische Berechnung im Wasserwesen,
Beuth Verlag GmbH, Berlin, 9 S.
[2] ISO 748:2007: Hydrometry - Measurement of liquid flow in open channels using current-meters or floats (ISO 748:2007);
German version EN ISO 748:2007.
[3] Grant, Douglas M., Dawson, Brian D. (2001): Isco Open Channel Flow Measurement Handbook, 5 th edition; Isco Inc.
Lincoln, Nebraska, USA.
Annex
Page 111 March 2021 HYB-UM-03155-EN-03

dynasonics Badger Meter IS-6000 Doppler Specifications

General

Brand	dynasonics
Model	Badger Meter IS-6000 Doppler
Category	Measuring Instruments
Language	English