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Contact Name
Muh. Nurjati Hidayat
Contact Email
jurnalpengairan@ub.ac.id
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Editorial Address
Jurnal Teknik Pengairan Jurusan Teknik Pengairan Fakultas Teknik, Universitas Brawijaya Jl. MT. Haryono 167 Malang
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Kota malang,
Jawa timur
INDONESIA
Jurnal Teknik Pengairan: Journal of Water Resources Engineering
Published by Universitas Brawijaya
ISSN : 20861761     EISSN : 24776068     DOI : 10.21776
Core Subject : Engineering,
Jurnal Teknik Pengairan is a scientific journal published regularly twice per year by Faculty of Engineering, Universitas Brawijaya. The paper submitted in this journal covers the fields of Water Resources Information System, Water Resources Conservation, Water Resources Utilization and Efficiency, Water Structure Engineering Planning and Water Resources Engineering Basic Knowledge. The submitted paper can be a summary of research reports or scientific literature review. The language used in this journal is either English or Indonesian.
Arjuna Subject : -
Articles 374 Documents
Numerical Model of Wave Transmission on Curtain-Wall Pile Breakwater with DualSPHysics Tahalele, Marcio; Khaldirian, Muhammad Farizqi
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol. 16 No. 2 (2025)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.pengairan.2025.016.02.2

Abstract

One of the problems often encountered in coastal areas is changes in coastal morphology caused by wave propagation. Curtain Wall-Pile Breakwater (CPB) is a practical alternative to dampen waves heading towards the shore. This study investigates the wave transmission caused by CPB using the Smoothed Particle Hydrodynamics (SPH) method and compares the experimental results with SPH. SPH was employed using open-source Computational Fluid Dynamics (CFD) software based on the DualSPHysics code. The numerical model (SPH) was made to resemble the experiment. The study was based on the effect of wave period (T) and the ratio between the submerged depth of the wave retaining wall and the water depth (h/d) of the CPB. The results show that CPB is effective in reducing incident waves. The effectiveness is seen from the resulting Transmission Coefficient (Kt) value. The baseline model Kt value is 0.854, and the Kt value with CPB is 0.693. The research findings show that the wave period (T) dramatically affects the wave transmission caused by CPB. The resulting Kt value decreases with increasing wave steepness (Hi/L), increasing incident wave height (Hi), and wave period (T). In addition, the increase in h/d also affects the Kt value, i.e., the resulting Kt value gets smaller. This study concludes that CPB can reduce the incident wave, thereby reducing the impact of waves on the protected side. Therefore, in designing a breakwater, it is necessary to consider the wave period (T) and the permeability level of the breakwater (h/d variation).
2D Modeling for Structural Flood Mitigation and Normalization with HEC-RAS: A Case Study of Tabelo River Agastya, Dewandha Mas; Kusuma, Rr. Widyawati Tresna; Jayanegara, I Dewa Gede; Yasa, I Wayan; Sulistiyono, Heri
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol. 16 No. 2 (2025)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.pengairan.2025.016.02.9

Abstract

Changes in land use for the development of the Mandalika Special Economic Zone (SEZ) have led to increased flooding. A rainfall intensity of 35 mm recorded at the ARR KEK Mandalika station led to a flood event, with a water level reaching 1.2 meters on March 23, 2022. Therefore, a study is needed to determine the flood discharge that affects the Tabelo Watershed and to identify the appropriate structural mitigation measures for flood management. After conducting frequency analysis with Hydrognomon and Generalized Extreme Value (GEV), the flood discharge for the 50, 100, and 200-year return periods was 149.5 m3/s, 162.5 m3/s, and 175.2 m3/s. Structural mitigation by river normalization and levees construction on the Tabelo River was carried out along 1882.5 m at stationing P0 – P101 and 468.5 m at stationing S0 – S30. The levee construction is planned to be 14 m wide for the upstream section, up to the junction, and 16 m wide for the junction to the river mouth. The river levee is designed to be 3.30 meters high and 16 meters wide. The stability of the levee is calculated by considering its stability against overturning, sliding, and reactions from the foundation soil under both normal and seismic conditions. Based on the results of the stability calculations, the safety factor values for stability against shear forces under normal and earthquake conditions were obtained, namely, Fs (3.81 > 2.00) and Fs (1.27 > 1.25).
Analysis of Sengkarang Watershed Performance with the Addition of River Maintenance Flow Parameters Sodikin, Wahlul; Juwono, Pitojo Tri; Sholichin, Moh
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol. 16 No. 2 (2025)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.pengairan.2025.016.02.6

Abstract

Watershed management plays a crucial role in maintaining water balance and ecosystem sustainability. However, conventional watershed performance assessments often overlook the importance of river maintenance discharge. This study evaluates the hydrological performance of the Sengkarang Watershed by incorporating river maintenance discharge as an additional parameter. The research employs the Tennant method to determine the maintenance flow and the Analytic Network Process (ANP) to weigh its significance. Six expert respondents participated in the weighting process. The study compares the results of the conventional five-parameter assessment with the newly modified six-parameter approach. Findings reveal that the Sengkarang Watershed is concerning, with high fluctuations in flow regimes and annual runoff coefficients. Including river maintenance discharge significantly increases the weight of flood parameters from 2.0% to 4.7%, while the new index for river maintenance discharge contributes 1.8% to the overall assessment. Despite these changes, the watershed remains classified as “Poor,” highlighting the need for further restoration efforts. The study suggests that integrating river maintenance discharge into performance assessments provides a more comprehensive understanding of watershed conditions, supporting better policy formulation for sustainable water resource management.
Comparative Analysis of Rainfall Patterns in Jatigede Watershed Using the Huff Method Setiyowati, Yunita Ayu; Harisuseno, Donny; Sajali, M. Amar
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol. 16 No. 2 (2025)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.pengairan.2025.016.02.5

Abstract

The temporal distribution of rainfall plays a vital role in hydrological analysis, particularly in estimating peak flood discharge, which significantly impacts the design of flood control infrastructure. Understanding rainfall distribution patterns is essential for improving flood forecasting and water resource management. This study aims to compare the rainfall distribution patterns in the Jatigede Watershed (DAS Jatigede) using the Huff Quartile 1 to 4 method. Hourly rainfall data were collected from six rainfall stations: Bayongbong, Cikajang, Darmaraja, Jatigede, Leuwigintung, and Sadawangi, with Ground Station data used for validation. The analysis revealed that rainfall in the Jatigede Watershed is steeper than Huff Quartile 1, with peak intensity occurring earlier during events, indicating a high concentration of rainfall at the beginning of storms, which may affect flood peak formation and watershed response time. These findings underscore the need to adjust hydrological models to better reflect actual rainfall distribution. However, the study has limitations, including a relatively small number of observation stations, potential inaccuracies in rainfall measurements, and the Huff method’s limited ability to capture spatial rainfall variability. Addressing these limitations in future research is essential for enhancing flood risk assessment and hydrological modeling accuracy in the Jatigede Watershed.