CD Skripsi
Model Laboratorium Pola Aliran Pada Krib Impermeable Terhadap Variasi Debit Dan Posisi Krib Di Sungai Berbelok
Groyne is building cross river that serves as building steering flow to protect riverbanks from attacks the current flows. Laboratory model used to demonstrate the phenomenon of pattern flows that occur around the Groyne at the maender. Groyne models used in this study is Groyne type impermeable with dimensions of length 0.15 m, width 0.03 m and high 0.15 m. The flow rate used is 0.00134 m3 / sec (Q1), 0.00298 m3 / sec (Q2) and 0.0056 m3 / sec (Q3). Position Groyne used is 0 ° (S1), 15 ° (S2) and 30 ° (S3) to turn the corner. Distance between Groyne is 30 cm and the configuration Groyne angle of 135 ° to the wall outside of the turn. The pattern flows at each position variation Groyne with debit Q1, vortex flow occurs in the space between the Groyne and Groyne with a radius lengthy of the vortex is relatively short. The pattern flows at each position variation Groyne with debit Q2, vortex flow occurs around the Groyne with a radius lengthy of the vortex is relatively modest. The pattern flows at each position variation Groyne with debit Q3, vortex flow occurs before at the Groyne, a space between the Groyne and Groyne with a radius lengthy of the vortex relatively long. Overall, phenomenon the pattern flow of the most well occur in debit Q1 position Groyne S2. Keywords: patterns of flow, maender, Groyne type of impermeable
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