PENGARUH ALUR TERHADAP PERILAKU ANGKUTAN SEDIMEN SUSPENSI OLEH ARUS DAN GELOMBANG = Influince of Channels Toward Suspended Sediment Transport Characteristics by Currents and Waves
ABSTRACT Generally, design of navigation channels corcern with choosing alignment, dimension, predict of volume of capital dredging, and maintenance dredging. In predicting volume of maintenance a study is needed to predict siltation from suspended sediment. Study of siltation is very important, bec...
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| Format: | Article |
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[Yogyakarta] : Universitas Gadjah Mada
2004
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| _version_ | 1826032887191830528 |
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| author | Perpustakaan UGM, i-lib |
| author_facet | Perpustakaan UGM, i-lib |
| author_sort | Perpustakaan UGM, i-lib |
| collection | UGM |
| description | ABSTRACT
Generally, design of navigation channels corcern with choosing alignment, dimension, predict of volume of capital dredging, and maintenance dredging. In predicting volume of maintenance a study is needed to predict siltation from suspended sediment. Study of siltation is very important, because maitenance dredging activities need high cost.
This research was intended to study the influence of channel for suspended transport caused by current and wave effects conducted by physical experiments. Parameters mesuared in the laboratory consisted of current, sediment concentration, height and period of wave, sediment gradation, sediment falling velocity, and temperature. Analysis of measured data were conducted to know the flow phenomena which characterized sediment passing a channels. Analysis of transport rate of suspended sediment was aimed to illustrate the sedimentation or erosion occurred, and the amount of silting up during certain time span.
The result showed that flow characteristics and suspended sediment concentration were reduced when passing through channels and increased again up on leaving the channels. Consequently, the rate of sediment transport generally follows similar trend. Comparison of mesured transpot rate was made using Lane and Kalinske method. Result of comparison test showed maximum deviation of 7,5% in the upper course of channels (location-1) and 6,7% in the middle of the channels (location-5). Wave height variety H/L = 0,0236, 0,0189, and 0,0142 increased sediment transport relative by 0,42%, 0,30%, and 0,21% compared with sediment transport relative without wave. Decrease in flow speed decrease the sediment transport relative by 0,042% and 0,128% for the decrease in Froude Number (Fr) from 0,10 to 0,093 and 0,069. Variety of initial concentrations increased sediment transport relative by 0,424%, 0,59%, and 0,439 for a decrease in initial concentration from Co = 1,5 g/L to Cn= 1,2 g/L, 1,00 g/L, and 0,75 g/L.
Keywords: Flow, Wave, Concentration, Sediment Transport, Siltation |
| first_indexed | 2024-03-13T19:01:08Z |
| format | Article |
| id | oai:generic.eprints.org:26690 |
| institution | Universiti Gadjah Mada |
| last_indexed | 2024-03-13T19:01:08Z |
| publishDate | 2004 |
| publisher | [Yogyakarta] : Universitas Gadjah Mada |
| record_format | dspace |
| spelling | oai:generic.eprints.org:266902014-06-18T00:28:34Z https://repository.ugm.ac.id/26690/ PENGARUH ALUR TERHADAP PERILAKU ANGKUTAN SEDIMEN SUSPENSI OLEH ARUS DAN GELOMBANG = Influince of Channels Toward Suspended Sediment Transport Characteristics by Currents and Waves Perpustakaan UGM, i-lib Jurnal i-lib UGM ABSTRACT Generally, design of navigation channels corcern with choosing alignment, dimension, predict of volume of capital dredging, and maintenance dredging. In predicting volume of maintenance a study is needed to predict siltation from suspended sediment. Study of siltation is very important, because maitenance dredging activities need high cost. This research was intended to study the influence of channel for suspended transport caused by current and wave effects conducted by physical experiments. Parameters mesuared in the laboratory consisted of current, sediment concentration, height and period of wave, sediment gradation, sediment falling velocity, and temperature. Analysis of measured data were conducted to know the flow phenomena which characterized sediment passing a channels. Analysis of transport rate of suspended sediment was aimed to illustrate the sedimentation or erosion occurred, and the amount of silting up during certain time span. The result showed that flow characteristics and suspended sediment concentration were reduced when passing through channels and increased again up on leaving the channels. Consequently, the rate of sediment transport generally follows similar trend. Comparison of mesured transpot rate was made using Lane and Kalinske method. Result of comparison test showed maximum deviation of 7,5% in the upper course of channels (location-1) and 6,7% in the middle of the channels (location-5). Wave height variety H/L = 0,0236, 0,0189, and 0,0142 increased sediment transport relative by 0,42%, 0,30%, and 0,21% compared with sediment transport relative without wave. Decrease in flow speed decrease the sediment transport relative by 0,042% and 0,128% for the decrease in Froude Number (Fr) from 0,10 to 0,093 and 0,069. Variety of initial concentrations increased sediment transport relative by 0,424%, 0,59%, and 0,439 for a decrease in initial concentration from Co = 1,5 g/L to Cn= 1,2 g/L, 1,00 g/L, and 0,75 g/L. Keywords: Flow, Wave, Concentration, Sediment Transport, Siltation [Yogyakarta] : Universitas Gadjah Mada 2004 Article NonPeerReviewed Perpustakaan UGM, i-lib (2004) PENGARUH ALUR TERHADAP PERILAKU ANGKUTAN SEDIMEN SUSPENSI OLEH ARUS DAN GELOMBANG = Influince of Channels Toward Suspended Sediment Transport Characteristics by Currents and Waves. Jurnal i-lib UGM. http://i-lib.ugm.ac.id/jurnal/download.php?dataId=9727 |
| spellingShingle | Jurnal i-lib UGM Perpustakaan UGM, i-lib PENGARUH ALUR TERHADAP PERILAKU ANGKUTAN SEDIMEN SUSPENSI OLEH ARUS DAN GELOMBANG = Influince of Channels Toward Suspended Sediment Transport Characteristics by Currents and Waves |
| title | PENGARUH ALUR TERHADAP PERILAKU ANGKUTAN SEDIMEN SUSPENSI OLEH ARUS DAN GELOMBANG = Influince of Channels Toward Suspended Sediment Transport Characteristics by Currents and Waves |
| title_full | PENGARUH ALUR TERHADAP PERILAKU ANGKUTAN SEDIMEN SUSPENSI OLEH ARUS DAN GELOMBANG = Influince of Channels Toward Suspended Sediment Transport Characteristics by Currents and Waves |
| title_fullStr | PENGARUH ALUR TERHADAP PERILAKU ANGKUTAN SEDIMEN SUSPENSI OLEH ARUS DAN GELOMBANG = Influince of Channels Toward Suspended Sediment Transport Characteristics by Currents and Waves |
| title_full_unstemmed | PENGARUH ALUR TERHADAP PERILAKU ANGKUTAN SEDIMEN SUSPENSI OLEH ARUS DAN GELOMBANG = Influince of Channels Toward Suspended Sediment Transport Characteristics by Currents and Waves |
| title_short | PENGARUH ALUR TERHADAP PERILAKU ANGKUTAN SEDIMEN SUSPENSI OLEH ARUS DAN GELOMBANG = Influince of Channels Toward Suspended Sediment Transport Characteristics by Currents and Waves |
| title_sort | pengaruh alur terhadap perilaku angkutan sedimen suspensi oleh arus dan gelombang influince of channels toward suspended sediment transport characteristics by currents and waves |
| topic | Jurnal i-lib UGM |
| work_keys_str_mv | AT perpustakaanugmilib pengaruhalurterhadapperilakuangkutansedimensuspensioleharusdangelombanginfluinceofchannelstowardsuspendedsedimenttransportcharacteristicsbycurrentsandwaves |