Article Per Year (5 Year)
p-Index From 2021 - 2026
0.882
P-Index
This Author published in this journals
All Journal Jurnal HIDROPILAR Computational and Experimental Research in Materials and Renewable Energy (CERiMRE) TRANSPUBLIKA INTERNATIONAL RESEARCH IN EXACT SCIENCES (TIRES)
Sukoco, Nawanto Budi
Unknown Affiliation
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Earth & Planetary Sciences Energy Materials Science & Nanotechnology Mathematics Physics

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
ANALYSIS OF PARABOLIC EQUATION (RAMGEO) PROPAGATION MODEL IN NORTH NATUNA SEA Agustinus, Agustinus; Manik, Henry Munandar; Sukoco, Nawanto Budi; Muharrom, Eka Yudha; Supriyanto, Taufiq
TRANSPUBLIKA INTERNATIONAL RESEARCH IN EXACT SCIENCES Vol. 3 No. 3 (2024): JULY
Publisher : Transpublika Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55047/tires.v3i3.1264

Abstract

The waters of the North Natuna Sea are one of Indonesia's conflict-prone maritime areas, frequently traversed by foreign vessels due to its direct border with several neighboring countries, necessitating effective maritime security assurance. To ensure this security, meticulous sea control and surveillance, particularly through the utilization of monitoring tools such as SONAR to detect foreign objects traversing or entering the North Natuna Sea waters, are required. This research aims to analyze the characteristics of underwater acoustic wave propagation patterns, particularly in the formation of silent areas or Shadow Zones, using the Parabolic Equation method (RAMGeo). Parabolic Equation propagation model (RAMGeo) simulations are conducted utilizing the AcTUP v2.2L Toolbox. Temperature and salinity data against depth obtained from Marine Copernicus for one year are utilized in this study, spanning from January 1, 2023, to December 31, 2023, encompassing both the west and east monsoon seasons. Sound propagation velocity calculations are based on the empirical Medwin equation, with a focus on a source depth of 10 meters at frequencies of 100 and 1,000 Hz in the North Natuna Sea. Simulation results indicate that both the west and east monsoon seasons exhibit similar and dense underwater acoustic wave propagation patterns. At a frequency of 100 Hz, the Transmission Loss ranges between 30 to 60 dB, with Shadow Zone areas extending from 0 - 500 meters and from 500 - 1,500 meters. Meanwhile, at a frequency of 1,000 Hz, the Transmission Loss ranges between 30 to 70 dB, with almost no Shadow Zone area present.
Hydrodynamic Characteristics of the Lombok Strait During the 2022 West Monsoon Peak and Estimation of Ocean Current Power Generation Potential Malik, Kurnia; Pranowo, Widodo Setiyo; Sukoco, Nawanto Budi; Adrianto, Dian; Setiyadi, Johar; Handoko, Dadang
Computational And Experimental Research In Materials And Renewable Energy Vol 6 No 2 (2023): November
Publisher : Physics Department, Faculty of Mathematics and Natural Sciences, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/cerimre.v6i2.43786

Abstract

The Lombok Strait is one of the crucial straits in the Indonesian area because it falls in the Indonesian Archipelagic Sea Lanes of Communication II (ALKI II), and is considered as a strategic chokepoint. Additionally, it serves as a passage for ARLINDO, facilitating the movement of water masses from the Pacific to the Indian Ocean. This unique attribute creates a diverse ecosystem in the Lombok Strait due to the convergence of marine organisms from both oceans. The Lombok Strait presents an opportunity for harnessing renewable energy from its currents. However, there is a scarcity of direct measurements and oceanographic data for the Lombok Strait, making it impractical and costly to conduct direct observations using oceanographic mooring instruments. Therefore, one approach to better understand natural phenomena in the ocean is to use numerical methods such as Computational Fluid Dynamics (CFD) with the Finite Element Method (FEM) application. In this study, the software Mike3FM was used, which incorporates both Computational Fluid Dynamics (CFD) and the Finite Element Method (FEM). This software used bathymetric data and coastlines to create a triangular mesh in the horizontal plane and a grid mesh in the vertical plane. The simulations conducted in January 2022, for 30 days with hourly intervals around the sill area showed an average current velocity of 1.2 m/s at various depths, including 5, 50, 150, and 250 meters. The current primarily flowed southward in the direction of the Indian Ocean. The conversion of avarage current velocity to electrical power at depths of 5, 50, 150, and 250 meters above the sill yielded values of 0.86 kW, 0.70 kW, 0.34 kW, and 0.19 kW, respectively. Based on the results of the hydrodynamic modeling experiments, it is evident that the Lombok Strait has the potential to develop ocean current power generation.Keywords: Hydrodynamics, the Lombok Strait, CFD, FEM, West Monsoon.
Analisis Harmonik Konstanta Pasang Surut di Perairan Teluk Banten Menggunakan Metode Least Square dan Admiralty: Harmonic Analysis of Tidal Constants in Banten Bay Coastal Waters Using The Least Squares Method and Admiralty Sutarto, Sutarto; Heriyanto, Dwi; Pranowo, Widodo Setiyo; Yulianto, Yulianto; Sukoco, Nawanto Budi; Widodo, Kukuh Suryo; Alam, Tasdik Mustika
Jurnal Hidropilar Vol. 10 No. 2 (2024): Jurnal Hidropilar
Publisher : Sekolah Tinggi Teknologi Angkatan Laut (STTAL)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37875/hidropilar.v10i2.360

Abstract

Wilayah pesisir memiliki kondisi fisik laut dengan variasi gelombang pasang surut yang beraneka ragam, seperti yang terjadi pada perairan Teluk Banten dimana terdapat banyak aktivitas manusia yang dapat mengakibatkan proses oseanografi laut. Tujuan dari penelitian ini untuk mengetahui bagaimana karakteristik pasang surut di perairan Teluk Banten yang meliputi data-data yaitu komponen pasang surut, tipe pasang surut dan elevasi muka air menggunakan data model global pada 5 September sampai 3 Oktober 2024. Analisis data menggunakan metode least square dan admiralty selama 29 piantan sehingga dapat menentukan komponen harmonic pasang surut yaitu M2, S2, N2, K2, K1, O1, P1, M4, MS4 dan perhitungan bilangan formzahl dalam menentukan tipe pasang surut dengan menggunakan software Matlab. Hasil dari analisis menggunakan metode least square menunjukan terdapat 32 komponen konstanta pasang surut dengan 26 komponen signifikan, 8 komponen tidak signifikan, didapat nilai bilangan formzahl-nya adalah 2,190667, kemudian analisis menggunakan metode admiralty nilai formzahl-nya adalah 2,195. Berdasarkan analisis tersebut tidak terdapat perbedaan yang signifikan sehingga tipe pasang surut di perairan Teluk Banten dari kedua metode tersebut didapat tipe Pasang Surut Campuran Condong Harian Tunggal.
Co-Authors Adrianto, Dian Agustinus Agustinus Dwi Heriyanto Handoko, Dadang Henry Munandar Manik Malik, Kurnia Muharrom, Eka Yudha Setiyadi, Johar Supriyanto, Taufiq Sutarto Sutarto Tasdik Mustika Alam, Tasdik Mustika Widodo S Pranowo Widodo, Kukuh Suryo Yulianto Yulianto