Fondasi: Jurnal Teknik Sipil
Vol 15, No 1 (2026)

Effect of Discharge Variations on Flow Characteristics in Chute

Syabrina Arvadelia (Universitas Sultan Ageng Tirtayasa)
Firyaal Nabila (Universitas Sultan Ageng Tirtayasa)
Bayu Krisna Wisnulingga (Universitas Sultan Ageng Tirtayasa)
Ngakan Putu Purnaditya (Universitas Sultan Ageng Tirtayasa)
Bambang Adhi Priyambodho (Universitas Sultan Ageng Tirtayasa)
Subekti Subekti (Universitas Sultan Ageng Tirtayasa)



Article Info

Publish Date
30 Apr 2026

Abstract

The utilization of water resources in open channel systems is critical to support drainage efficiency and surface flow control, especially in areas with steep topographic conditions. Chute are used to overcome flows with large base slopes so that channels can be designed with sub-critical bottom slopes and do not cause erosion. This study aims to analyze the effect of discharge variations on the characteristics of flow and hydraulic jump on chute. The research method uses a physical model using flume conducted at the Integrated Laboratory of Sultan Ageng Tirtayasa University. Based on the results of the study, it was shown that the increase in flow discharge at the constant slope (1:1) and the difference in the constant height of the chute (0.2 m) resulted in an increase in water level elevation and an increase in velocity upstream, retreat and downstream. The type of flow that occurs upstream is an almost critical flow (Fr = 1), while the type of flow in the upstream and downstream is a supercritical flow (Fr > 1). The hydraulic jump length and hydraulic jump height have increased due to the increase in flow discharge. The flow velocity and froude numbers from upstream to upstream have increased, while the flow velocity and froude numbers from downstream have decreased.

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Journal Info

Abbrev

jft

Publisher

Subject

Civil Engineering, Building, Construction & Architecture Transportation

Description

Terbitan berkala yang mempublikasikan hasil penelitian yang berkaitan dengan pengembangan sains dan teknologi dalam bidang teknik sipil (Struktur, Transportasi, Geoteknik, Sumber Daya Air dan Manajemen Konstruksi) sebagai bentuk kekayaan intelektual. Diterbitkan sebanyak 2 kali dalam satu tahun ...