| Autor: |
Singh, V. P., Aravamuthan, V., Joseph, E. S. |
| Zdroj: |
Irrigation Science; November 1994, Vol. 15 Issue: 2-3 p137-146, 10p |
| Abstrakt: |
Time-independent (or steady-state) cases of channel flow were treated and errors of the kinematic-wave and diffusion-wave approximations derived for finite flow at the upstream end. The diffusion-wave approximation was found to be in excellent agreement with the dynamic wave representation, with error magnitudes of 0.2% for values of KF02=7.5, where K is the kinematic-wave number and f0 is the Froude number. Even for small values of KF02(e.g., KF02=0.75), the errors were typically in the range of 1.3 to 3.7%. The approximate analytical diffusion-wave solution performed poorly with error magnitudes greater than 30% even for large values of KF02. The kinematic-wave approximation was also found to be in good agreement with the dynamic-wave representation with errors of about 1.2% for KF02=7.5 and varying from 15 to 44% for KF02=0.75. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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