Paper Details

Sediment transport is a significant factor in effective design of hydraulic structures and open channel water conveyance. Estimation of theamount of sediment material w hich a specific flow can carry is one of the major issues of sedimentation research. Unit stream power is defined as thetime rate of potential energy per unit weight of water, and is found to be the dominant factor in the determination of total sediment concentration beingcarried by the (Yang, 1972). Yang’s (1979) unit stream power approach for total load sediment transport function is applied to test the predictability oftotal sediment transport rate by using flume data sets of Samaga et al (1986), Willis et al (1972) and river data set of Middle Loup river of Hubbel et al(1959). The performance of the Yang’s sediment transport function for different data sets has been evaluated by finding statistical parameters, such asroot mean square error (RMSE), discrepancy ratio and inequality coefficient. From the evaluation, it is observed that the Yang (1979) total load functionunder predicts the sediment transport rate for the three mixtures M1, M2, M3 and predicts well for mixture M4 of Samaga et.al data set giving good resultcompared to other mixtures. For both Willis et al (1972) data set and the river data of Hubbel et al (1959) total load function of Yang (1979), both underpredicts as well as over predicts sometimes.Yang total load equation gives better results for samaga et al (1986) data sets for the four mixture.

H. N.Prajapati, S. I. Waikhom, Dr. S. M. Yadav, V.G.Yadav, “ASSESING THE PREDICTABILITY OF TOTAL SEDIMENT TRANSPORT RATE FOR UNIT STREAM POWER APPROACH”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 2, Issue 13, pp. -, January 2015.