Sudradjat, Hendra Putra (2018) Kajian Tinggi Air Di Hulu Bendung Dan Penentuan Koefisien Debit Pada Pelimpah Ambang Dengan Bentuk Alinyemen Puncak Linear dan Multi Halfcircular Dengan Model Fisik. Masters thesis, Institut Teknologi Sepuluh Nopember.
Preview |
Text
3116205005-Master_Thesis.pdf - Accepted Version Download (10MB) | Preview |
Abstract
Pelimpah ambang berfungsi melimpahkan debit air yang berkelebihan dan menanggulangi bahaya overtopping terhadap jenis-jenis bangunan air. Debit air yang mengalir pada pelimpah ditinjau dari karakteristik hidraulik tidak hanya ditentukan oleh lebar ambang saja, tetapi ditentukan pula oleh parameter-parameter aliran lainnya, yaitu geometri pelimpah ambang yang terdiri dari lebar pelimpah ambang, tebal ambang, dan tinggi pelimpah ambang. Dari dasar itu kemudian penulis melakukan penelitian aliran melalui pelimpah ambang dengan bentuk geometri linear dan multi halfcircular. Ambang multi halfcircular akan memiliki kemampuan mengalirkan debit yang lebih besar dibandingkan ambang linear. Hal ini karena panjang ambang multi halfcircular lebih besar nilainya dibandingkkan ambang linear. Penelitian dilakukan dengan melakukan pengukuran aliran pada model seri pelimpah ambang linear dan ambang multi halfcircular yang ditempatkan dalam flume di laboratorium. Tinggi muka air di udik pelimpah diukur dengan menggunakan sensor (Ultrasonic Water Level Recorder). Debit aliran dihitung dari data hasil pengukuran yang berdasarkan rumus hidrolika rehbock, sedangkan analisa data menggunakan metode statistik deskriptif untuk mendapatkan nilai rata-rata dan erornya.
Dari hasil penelitian ini, peneliti menyajikan grafik hubungan antara muka air di udik pelimpah dan debit, grafik muka air dan debit yang melewati pelimpah, serta grafik hubungan antara koefisien debit dan H/P (muka air dan tinggi pelimpah).
=============================================================================================================
The weir serve to overflow excessive water discharge and overcome the dangers of overtopping of hydraulics structure types. The flow of water flowing in the overflow in terms of the hydraulic characteristics is determined not only by the weir, but also by other flow parameters, ie the weir geometry of the width, the thickness, and the height of the weir overlay. From that basis then the author conducted a research flow through an overflow weir with a linear and multi half-circular geometry. Multi-circular weir will have the ability to drain greater discharge than linear weirs. This is because the multi halfcircular had length is greater than the linear weir. The experiment was conducted by measuring the flow on the linear weir abutment model and the multiple half-circular weir placed in the flume in the laboratory. The water level in the hill is measured using a sensor (Ultrasonic Water Level Recorder). The flow discharge is calculated from the measurement data based on the rehbock hydraulic formula, while the data analysis uses descriptive statistical method to get the average value and error.
From the results of this study, the researcher presents the graph of the relationship between the water level in the overflow hill and discharge, the water level graph and the discharge through the spillway, and the graph of the relationship between the discha coefficient and H / P (water level and high abundance).
| Item Type: | Thesis (Masters) |
|---|---|
| Additional Information: | RTL 627.883 Sud k-1 |
| Uncontrolled Keywords: | weir; Discharge; Water Level; Discharge Coefficient; Ambang; Debit; Tinggi Air; Koefisien Debit |
| Subjects: | T Technology > TC Hydraulic engineering. Ocean engineering > TC424 Water levels T Technology > TC Hydraulic engineering. Ocean engineering > TC812 Irrigation |
| Divisions: | Faculty of Civil Engineering and Planning > Civil Engineering > 22101-(S2) Master Thesis |
| Depositing User: | SUDRADJAT HENDRA PUTRA |
| Date Deposited: | 02 Mar 2018 04:02 |
| Last Modified: | 26 Jun 2020 03:05 |
| URI: | http://repository.its.ac.id/id/eprint/49791 |
Actions (login required)
 |
View Item |