Model Simulasi Interaksi Gelombang dan Arus di Perairan Dangkal

Sujantoko, Sujantoko; Natakusumah, Dantje Kardana

doi:10.5614/jts.2003.10.3.3

Cited by 9 publications

(4 citation statements)

References 4 publications

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“…According to Sujantoko and Natakusumah (2003), the water depth is shallow if it smaller compare to width then there is only insignificant layer formed. Because of it, if there is a quick current of water the layer taken along to the deepest depth area with it and will accumulate there.…”

Section: Resultsmentioning

confidence: 99%

Diversity of Cu and Total Cr Metals in Surface Water and Sludge of Textile Wastewater from Tuan Kentang Village Seberang Ulu I Sub District Palembang

Astari¹,

Napoleon²,

Mohadi³

2018

STI

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Nowadays, the production of rainbow fabric as a traditional fabric of Palembang city has been grown rapidly. Commonly, the waste water as the by-product of rainbow fabric production is discharged directly to domestic channels without any previous waste water treatment. This research was aimed to evaluate the presence of Cu and total Cr heavy metal in the area of rainbow fabric industrial center in Tuan Kentang Village, Sebrang Ulu I Sub Distric, Palembang. The Cu and total Cr polluted in the collected wastewater sample was analyzed by using atomic adsorption spectrometry method with wet destruction technique. The results indicated that the area of Tuan Kentang villages is contributing metal contaminants distribution and accumulation to nature.

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Section: Resultsmentioning

confidence: 99%

Diversity of Cu and Total Cr Metals in Surface Water and Sludge of Textile Wastewater from Tuan Kentang Village Seberang Ulu I Sub District Palembang

Astari¹,

Napoleon²,

Mohadi³

2018

STI

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“…Hal tersebut dapat diatasi diantaranya dengan perhitungan gelombang dengan data angin permukaan, permodelan gelombang laut dengan berbagai aplikasi, dan juga melakukan interpolasi dari data yang tersedia tersebut. Permodelan gelombang laut dapat menunjukkan efek shoaling, refraksi, difraksi, dan dissipasi energi (Sujantoko & Natakusumah, 2003). Untuk peramalan gelombang laut dangkal dari data angin memerlukan data kedalaman pada titik peramalan.…”

Section: Pendahuluanunclassified

Peramalan Gelombang Laut Dangkal Dan Hubungannya Dengan Sebaran Lifeform Karang Di Perairan Kota Padang

Tanto¹,

Nurjaya

Bengen

et al. 2021

Jurnal Kelautan Nasional

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Data gelombang laut penting dikaji karena dapat mengakibat abrasi ataupun sedimentasi pada suatu pantai. Paramater gelombang laut juga dapat berperan secara tidak langsung terhadap bentuk lifeform karang. Kajian bertujuan untuk melakukan peramalan gelombang laut dangkal dari perhitungan data kecepatan dan arah angin permukaan, kemudian menghubungkan kejadian gelombang laut terhadap sebaran lifeform karang. Selama bulan April 2018, gelombang laut lebih tinggi terjadi pada awal dan akhir bulan. Karakteristik tinggi gelombang laut di wilayah kajian dominan dari angin dan dikuatkan oleh panjang fetch efektif arah angin bertiup. Terjadi hubungan erat antara parameter gelombang laut di lokasi kajian terhadap sebaran lifeform karang. Hasil analisis PCA dari sebaran gelombang laut di wilayah kajian memiliki nilai hubungan sebesar 79.23 %. Hasil analisis CA dari keterkaitan antara lifeform karang di wilayah kajian sebesar 74.40 %. Tinggi gelombang laut maksimum di perairan P. Sirandah sebesar 1.07 m dengan periode 4.26 s, terdapat karang jenis submassive (CS) dominan mencapai 77.33 – 85.27 %. Kondisi gelombang laut di perairan P. Pasumpahan tidak menentu, secara umum rendah pada saat-saat air laut pasang dan surut waktu purnama dan perbani. Terdapat banyak jenis lifeform karang di perairan ini yaitu semua jenis karang non-Acropora dan Acropora jenis bercabang (ACB). Terumbu karang di perairan P. Sikuai dan P. Soronjong kurang baik (0.2 – 17.53 %). Lifeform karang jenis submassive paling rendah pada ke dua pulau ini (0.07 %).

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“…One of these uses is the construction of a port. However, if the port construction is not carried out properly, it will impact the surrounding beaches, namely sedimentation and erosion [1][2][3][4][5][6][7][8]. Another problem about the coastal area is a change in the coastline in the form of a retreating coastline resulting in loss or damage to infrastructure facilities and settlements caused by high sea wave activity.…”

Section: Introductionmentioning

confidence: 99%

Simulation of a Wave Hydrodynamic Numerical Model on a Single Vertical Porous Breakwater

Sujantoko,

Pramestika,

Mustain

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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One of the problems in the coastal area is a change in the coastline in the form of a coastline retreat which results in the loss or damage of infrastructure and settlement facilities caused by extreme sea wave activity. One way to anticipate this problem is to build a breakwater. This research is focused on the effect of porosity and freeboard on the transmission and reflection of waves in a single vertical porous breakwater. Numerical modeling was done using a 3D Numerical Wave Tank (NWT) based on Smoothed Particle Hydrodynamic (SPH). The numerical model results show that the average transmission and reflection coefficients are 0.58 and 0.42. In addition, it can be seen that the freeboard and porosity influence the value of the transmission and reflection coefficients. Generally, the smaller the freeboard, the greater the transmission coefficient and the smaller the reflection coefficient. Meanwhile, the greater the porosity, the greater the transmission coefficient, and vice versa, the smaller the reflection.

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Model Simulasi Interaksi Gelombang dan Arus di Perairan Dangkal

Cited by 9 publications

References 4 publications

Diversity of Cu and Total Cr Metals in Surface Water and Sludge of Textile Wastewater from Tuan Kentang Village Seberang Ulu I Sub District Palembang

Diversity of Cu and Total Cr Metals in Surface Water and Sludge of Textile Wastewater from Tuan Kentang Village Seberang Ulu I Sub District Palembang

Peramalan Gelombang Laut Dangkal Dan Hubungannya Dengan Sebaran Lifeform Karang Di Perairan Kota Padang

Simulation of a Wave Hydrodynamic Numerical Model on a Single Vertical Porous Breakwater

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