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All Journal Jurnal Fisika dan Pembelajarannya Jurnal Penelitian Saintek Jurnal Sains Dasar Widyariset JLBG (Jurnal Lingkungan dan Bencana Geologi) (Journal of Environment and Geological Hazards) INDONESIAN JOURNAL OF APPLIED PHYSICS Jurnal Pengabdian Masyarakat MIPA dan Pendidikan MIPA Jurnal Geofisika Jurnal Teras Fisika : Teori, Modeling, dan Aplikasi Fisika Widyariset PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Makara Journal of Science Progressive Physics Journal Jurnal Psikologi Poseidon: Jurnal Ilmiah Psikologi dan Psikologi Kemaritiman Jurnal Ilmu Fisika dan Terapannya (JIFTA) Wahana Fisika : Jurnal Fisika dan Terapannya
Denny Darmawan
Jurusan Pendidikan Fisika, FMIPA, Universitas Negeri Yogyakarta
Aerospace Engineering Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Neuroscience Physics Social Sciences Other

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Identifikasi Struktur Bawah Permukaan Area Tempuran, Magelang, Jawa Tengah dengan Metode Gravitasi GGMplus Mustofa, Nisrina Hasna; Widiyansari, Roma; Aziz, Khafidh Nur; Darmawan, Denny; Maharani, Laras Anindita; Zainfa, Aqheela Aphrodita; Fitrianingtyas, Rahmawati; Maulita, Ika
Progressive Physics Journal Vol. 6 No. 2 (2025): Progressive Physics Journal
Publisher : Program Studi Fisika, Jurusan Fisika, FMIPA, Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/054gd652

Abstract

This research was conducted in the Tempuran geothermal manifestation area, Magelang, Central Java, specifically in a location with indications of fault structure. The study aims to identify the subsurface structural conditions associated with the fault through the distribution pattern of gravity anomalies. This research used gravity method, with the data are gravity disturbance from GGMplus with a resolution of approximately 220 meters. The gravity disturbance data were processed to obtain Complete Bouguer Anomaly (CBA) data, which were then subjected to upward continuation and forward modeling. The CBA results reveal a high anomaly in the southern part of the study area, extending southwestward, which correlates with the Menoreh Mountains. A low anomaly is found in the northeastern part of the area, corresponding to a lowland region. The 2D modeling results indicate that the study area is composed of rocks with densities ranging from 1.00 g/cm³ to 1.60 g/cm³, interpreted as alluvium; 1.75 g/cm³ to 2.73 g/cm³, interpreted as the Kebobutak Formation; and 2.50 g/cm³, interpreted as deposits from theyoung Sumbing Volcano. Additionally, rocks with densities ranging from 2.40 g/cm³ to 2.77 g/cm³ are interpreted as andesitic intrusions, while rocks with a density of 2.83 g/cm³ are interpreted as dacitic intrusions. The presence of a normal fault is identified within the Kebobutak Formation and the andesitic intrusion, overlain by alluvial deposits.
Analisis Struktur Bawah Permukaan Daerah Panas Bumi Pacitan Berdasarkan Data Gravitasi GGMPlus Widiyansari, Roma; Fatimah, Siti; Risti, Fidel; Hikmah, Nur; Darmawan, Denny; Nur Aziz, Khafidh; Fitrianingtyas, Rahmawati
Progressive Physics Journal Vol. 6 No. 2 (2025): Progressive Physics Journal
Publisher : Program Studi Fisika, Jurusan Fisika, FMIPA, Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/3rdp3n60

Abstract

This study aims to identify the subsurface structure of the geothermal system in the Pacitan area, East Java, using gravity methods based on GGMPlus data. The analysis procedures include terrain correction to obtain the Complete Bouguer Anomaly (CBA), separation of regional and local anomalies through upward continuation, as well as two-dimensional (2D) modeling and Second Vertical Derivative (SVD) analysis to identify fault structure. The CBA values in the study area range from 107 to 115.5 mGal, where high anomalies correlate with volcanic breccia rocks and highlands, while low anomalies indicate the presence of sandstone in lowland areas. Geothermal manifestations in the form of hot springs exhibit gravity anomalies of approximately 110.5–111.5 mGal and are situated in the north of the fault in a northwest–southeast direction. The 2D modeling results reveal the presence of reservoir rocks consisting of sandstone and clay with densities ranging from 1.79 to 2.20 g/cm³, and lava rocks with densities of 2.80–2.90 g/cm³ acting as cap rocks. SVD analysis indicates the existence of a normal fault directly associated with geothermal fluid pathways. This study demonstrates that the GGMPlus gravity method is effective for preliminary exploration of geothermal systems in potential areas such as Pacitan.
Electromagnetics Properties of Non-Relativistic Deuteron in Ground State Sari, R. Yosi Aprian; Darmawan, Denny
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 6, No 01 (2016): April
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v6i01.1802

Abstract

Proton-neutron interaction that makes up deuteron is a mixture state of ?13 dan ?13, which are each associated with a state ?=0, ?=1 and ?=2, ?=1. In the proton-neutron interaction, there are particle exchanges of medium range (1 fm≤?≤2 fm) i.e. scalar meson exchange and the long range (?>2 fm) i.e. one pion exchange. The electromagnetic properties of non-relativistic deuteron in the ground state can be found from the coupled differential equation, such as magnetic dipole moment, 〈?D〉=0.856521?? and electrical quadrupole moment, 〈?D〉=0.00291396 b.
Interpretasi Struktur Bawah Permukaan Jalur Sesar Opak Berdasarkan Model Suseptibilitas dan Second Vertical Derivative dengan Metode Geomagnet Dayana, Desi Novi; Wibowo, Nugroho Budi; Darmawan, Denny
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 8, No 2 (2018): October
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (829.047 KB) | DOI: 10.13057/ijap.v8i2.21428

Abstract

Tujuan dari penelitian ini adalah untuk mengetahui struktur bawah permukaan jalur Sesar Opak berdasarkan model suseptibilitas dan SVD dengan metode geomagnet. Pengambilan data dilakukan menggunakan Proton Precession Magnetometer Geometric tipe G-856 dengan 77 titik pengukuran dan jarak antar titik pengukuran +2 km. Pengolahan data dilakukan melalui koreksi variasi harian, koreksi IGRF, SVD, dan reduksi ke kutub. Pemodelan dilakukan dengan menganalisis anomali medan magnet yang telah direduksi ke kutub. Hasil pemodelan solid model menunjukkan bahwa Formasi Semilir dengan nilai suseptibilitas (0 – 100) ×10-3, Formasi Merapi Muda dengan nilai suseptibilitas (0 – 2) ×10-3, dan Formasi Nglanggran dengan nilai suseptibilitas (0,6 – 70) ×10-3. Hasil pemodelan SVD dan solid model menunjukkan keberadaan Sesar Opak.
Compressibility Effects on Turbulent Heat Transfer of Natural Convection in a Square Cavity Mahmudah, Rida Siti Nur'aini; Widiatmono, Restu; Darmawan, Denny
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 13, No 2 (2023): October
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v13i2.75790

Abstract

Heat transfer in turbulent flows is one of the essential topics in power plants and thermal-based engineering. This study aims to analyze the effects of density changes due to heat transfer in a turbulent environment—which is usually neglected because it can cause instability in a simulation. We simulate an available experimental case of turbulent heat transfer of air with OpenFOAM: one with an incompressible approach (no density change) and another with a compressible treatment. The simulation geometry is a 0.75 × 0.75 m2 square cavity, where its left and right walls are kept at a temperature difference of 40 K. We compare and analyze the temperature, velocity, and turbulence kinetic energy profiles of both simulation results against the experimental data. We found that from all qualitative and quantitative comparisons, the change in density plays a vital role in turbulent heat transfer. The compressible treatment gives better results than the incompressible: the neglection of density change causes a significant difference with the experimental data. Thus, we strongly recommended incorporating compressibility in simulating heat transfer in turbulent flows.
Co-Authors A. R. U. Fadilah Achmad Maulana Achsan Adisti, Adisti Agung Purnomo Ahmad Awaluddin Noer Ahmad Bayhaqi Ahmad Bayhaqi Aini Rahmatun Ummi Fadlilah Alfarisa, Suhufa Anak Agung Gede Sugianthara Arif Sudrajat Ariswan Ariswan Arya, Lutfi Aziz, Khafidh Nur Bambang Ruwanto Bambang Ruwanto, Bambang Bambang Ruwantro Dayana, Desi Novi Eddy Hermawan Fitrianingtyas, Rahmawati Gofur Dyah Ayu Gilang Petiwi Heningtyas Heningtyas Heningtyas Heningtyas Ika Kurnaiwati Ika Kurniawati Ika Maulita Ilham Adi Panuntun Imdadu Rohman Kautsar Fadlih Akbar Kautsar Fadlih Akbar Khafidh Nur Aziz Khafidh Nur Aziz Khikmah Muliati Khikmah Muliati Koji Morita Laatifah, Laatifah Laila Katriani Lestari Tri Eva Maharani, Laras Anindita Meita Aulia Sari Meita Aulia Saru Merizka Marsyelina Mifta Arunahul Janah Mithra Mustofa, Nisrina Hasna Noor Rika Safitri Norma Ayu Rahmawati Nugroho Budi Wibowo Nugroho Budi Wibowo Nugroho Budi Wibowo Nugroho Budi Wibowo Nugroho Budi Wibowo NUGROHO BUDI WIBOWO NUGROHO BUDI WIBOWO Nur Aziz, Khafidh Nur Hikmah NUR INTAN PERMATASARI NUR INTAN PERMATASARI Nurhayati Nurhayati Nurrohman Aryo Seno Petiwi, Gofur Dyah Ayu Gilang Phisca Maulana Zaky Ichsany Prihastiwi Fifi Purnama Aditya R. A. Adipurno R. N. Safitri R. Y. A. Sari Restu Widiatmono Rida Siti NM Rifka Addawiyah Rike Nainitania Risti, Fidel Rizal Aditya Saputra, Antonni Sardjono Sardjono Siti Fatimah Siti Patimah Suparno Suparno Ulfa Fadhilah Umi Habibah Warsono Warsono Wibowo Nugroho Budi Widiyansari, Roma Wipsar Sunu Brams Dwandaru Yohanes Sardjono Yosaphat Sumardi Yosaphat Sumardi Yosi Aprian Sari Yuni Setiawati Zahroh Utami Zainfa, Aqheela Aphrodita