Page - 431 - in Book of Full Papers - Symposium Hydro Engineering

Table:3. Prediction of Sediment by Unsteady State Flow Equations S No. Investigators Predicted Sediment ton Present Studies Unteady State Flow Equations 1. Exner(1−𝜆 𝑝 ) 𝜕 𝜂 𝜕 𝑡 =− 𝜕 𝑞 𝑏 𝑠 𝜕 𝑥 − 𝜕 𝑞 𝑏 𝑚 𝜕 𝑛 +𝜈 𝑠 (𝑐 ?̅? −𝐸 𝑠 ) 112200.20 2. Proposed Unsteady Equation 𝜕 𝑐 𝜕 𝑡 =−5+1.35 ( 𝜕 𝑄 𝜕 𝑥 𝑑 𝑥 𝑑 𝑡 ) 0.96 +( 𝜕 𝑄 𝜕 𝑥 𝑑 𝑥 𝑑 𝑡 ) −0.5 −( 𝜕 𝑄 𝜕 𝑥 𝑑 𝑥 𝑑 𝑡 ) −0.25 120172.6 Observed 119607.29 Data Analysis and Discussion: Sediment concentration plays significant role in prediction of sedimentation in the reservoirs. Table:4. Gist for Prediction of Sediment S No. Investigators Predicted Sediment ton 1. Camenen and Larson Method 1194604.32 2. Engelund and Hansen Method 756025.46 3. Ackers and White’s Method 600278.89 4. Meyer-Peter and Muller Method 445292.83 5. Neilsen Method 210378.91 Present Studies 6. Quadratic 0.0004Q2 - 0.0025Q+ 90 Method 342617.84 7. Log-log plot 5e 0.05 ln Q Method 316959.32 8. 𝑃 𝑜 𝑤 𝑒 𝑟 𝐿 𝑎 𝑤 𝐶 =700𝑄 −0.9 127052.40 9. Unsteady Exner 112200.20 10. Unsteady 𝜕 𝑐 𝜕 𝑡 =−5+1.35 ( 𝜕 𝑄 𝜕 𝑥 𝑑 𝑥 𝑑 𝑡 ) 0.96 +( 𝜕 𝑄 𝜕 𝑥 𝑑 𝑥 𝑑 𝑡 ) −0.5 −( 𝜕 𝑄 𝜕 𝑥 𝑑 𝑥 𝑑 𝑡 ) −0.25 120172.6 Observed 119607.29 431