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All Journal Jurnal Teknik Pengairan: Journal of Water Resources Engineering
Anggara Cahyo Wibowo
Jurusan Teknik Pengairan Fakultas Teknik, Universitas Brawijaya
Engineering

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PEMODELAN NUMERIK PELIMPAH SAMPING WADUK TELAGAWAJA BALI KABUPATEN KARANGASEM DENGAN ANALISA KOMPUTASI FLUIDA DINAMIS Wibowo, Anggara Cahyo; Dermawan, Very; Juwono, Pitojo Tri
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 7, No 2 (2016)
Publisher : Fakultas Teknik, Universitas Brawijaya

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Abstract

ABSTRAK Pembangunan bendungan Telagawaja merupakan suatu alternatif untuk mengatasi masalah pemenuhan kebutuhan air, baik domestik maupun non domestik sebagai suatu upaya konservasi sumber daya air. Bendungan terdiri dari bangunan pelimpah, saluran peluncur dan kolam olak. Tujuannya adalah memberikan gambaran tentang pola hidrolika pada pelimpah samping (side channel spillway) yang terjadi pada model test. Dasar dari hasil kalibrasi CFD (Computational Fluid Dynamic) adalah data hasil pengukuran model test. Hasil kalibrasi yang didapat untuk parameter kecepatan memenuhi kriteria yaitu kesalahan relatifnya dibawah 10%. Namun ada beberapa section yang tidak memenuhi standar KR, yaitu hasil parameter tekanan serta parameter tinggi muka air. Diharapkan dengan adanya penelitian ini, hasil pemodelan hidraulika bisa menjadi lebih berkembang dalam penentuan sebuah alternatif desain spillway dan mempermudah dalam proses perencanaannya. Kata Kunci: CFD, Skala Model, Model Fisik, Hidrolika, Pelimpah ABSTRACT Construction of Telagawaja dams is an alternative to resolve the problem of fulfillment the water needs for both domestic and non-domestic in the area as the conservation of water resources. Dams consist of spillway, chute, and stilling basin. The aim of this study is to describe a detail of the hydraulics patterns of side channel spillway in model tests. Basic criteria of CFD (Computational Fluid Dynamic) calibrations is measurement data from model test. The calibration results for velocity parameter of relative error less than 10%. However, there are several sections that cannot be accepted by the standards relative error, such as the result of pressure parameters and the parameters of the water level. Expected the results of the hydraulics modeling could be more improved in the determination of an alternative spillway design and simplify the planning process. Keywords: CFD, Scale Modelling, Physical Model, hydraulics, Spillway
Studi Penentuan Kinerja Pengelolaan Das Di Sub Das Konto Hulu Wibowo, Anggara Cahyo; Sayekti, Rini Wahyu; Rispiningtati, Rispiningtati
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 4, No 2 (2013)
Publisher : Fakultas Teknik, Universitas Brawijaya

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Abstract

At the Sub Konto watershed upstream, Malang Regency, the success of watershed management was certainly related to the analysis of watershed sustainability performance indicators. Key performance indicators of sustainable management of watersheds in the region was covered environmental sustainability (land use and water management) as well as the sustainability of social, economic, and institutional. Therefore, an increase in cultivation area function requires integrated planning that some watershed management goals and objectives achieved, such as: 1) soil erosion control, 2) optimal water yield, and 3) productivity and carrying capacity of the land preserved. Thus land degradation can be controlled and wellbeing of the community can be assured. The purpose of this study was to determine the performance of sustainability in watershed management upstream Sub Konto watershed, and to know the results of the classification index parameters examined include land cover, land use suitability, erosion index, coefficient of river regime, the coefficient of variance, index of water use, sedimentation, runoff coefficient in Sub Konto watershed upstream. From this study it can be seen the results of the classification and calculation of the average in 2003 - 2012 include indices for land cover classification were 45.71% medium, the suitability of the land use classification of 85.21% good, erosion index of 85.98 classifications medium, the coefficient regime river classification either 8.88 good, coefficient variance of 0.18 medium, classification, water use index of 0.34 good classification, sedimentation of 2.23 medium classification ,runoff coefficient of 0.52 bad classification on the Sub Konto watershed upstream.Keywords: DAS, erosion, land use
Co-Authors Pitojo Tri Juwono Rini Wahyu Sayekti Rispiningtati Rispiningtati Very Dermawan