Pengaruh Bukaan Pintu Tailgate pada Panjang Loncat Air pada Hilir Bendung Triangular

Wicaksono, Imam Kiat and , Gurawan Djati, W.ST.,M.Eng (2021) Pengaruh Bukaan Pintu Tailgate pada Panjang Loncat Air pada Hilir Bendung Triangular. Skripsi thesis, Universitas Muhammadiyah Surakarta.

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Abstract

One of the efforts to be able to utilize water properly is to build weirs and irrigation channels that are facilitated by floodgates. However, it is not uncommon to find uncontrolled water leaps that result in scouring downstream of the weir. At the opening of the tailgate, supercritical flow usually occurs and a hydaraulic jump occurs which is useful as an energy damper and can raise the water level. To prevent scouring downstream of the weir, the ideal water jump length can be found. The length of the water jump is the distance between the front surface of the hydraulic jump to the surface of the wave roll which is immediately going downstream influenced by the height of the water level downstream of the stepping and the width of the water gate opening (tailgate). The research experiment was conducted at the Hydraulics Laboratory of the Civil Engineering Study Program, Faculty of Engineering, Muhammadiyah University of Surakarta. The study used a flume device with a size of 30 cm x 60 cm x 100 cm with a slope of the channel base of 0.0058. Using a triangular type weir with a height of 20 cm. This research uses seven variations of discharge with each of the discharge has five variations of the tailgate openings, so that the running is done as many as 35 running. At each discharge, the water level is tested, the water jump length, the water jump height and the height after the water jump. The results of the study show several conclusions. First, the higher the tailgate opening, the longer the water jump will be. Second, the equation for predicting the jump length of the water with Froude's number can use the linear equation with the LSE (Least Square Error) method Lj = a.Fr2 + c on each discharge. Third, the greater the value of Fr1, the longer the water jump will be.

Item Type:	Karya ilmiah (Skripsi)
Uncontrolled Keywords:	water jump, water jump length, tailgate door, weir, energy attenuation, water jump height.
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Divisions:	Fakultas Teknik > Teknik Sipil
Depositing User:	IMAM KIAT WICAKSONO
Date Deposited:	16 Aug 2021 03:21
Last Modified:	16 Aug 2021 03:21
URI:	http://eprints.ums.ac.id/id/eprint/93547

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