Sistem Granular: Dari Interaksi antar Partikel sampai Interaksi antar Peneliti

Dies Natalis FMIPA ITB Ke-70,
Aula Timur ITB
17 November 2017, Bandung, Indonesia 1
Sistem Granular: Dari Interaksi antar
Partikel sampai Interaksi antar Peneliti
Sparisoma Viridi* dkk.
*Physics Department, Institut Teknologi Bandung
Jalan Ganesha 10, Bandung 40132, Indonesia
dudung@fi.itb.ac.id | https://dudung.github.io

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Outline
• Sistem granular
• Sistem beberapa partikel
• Kolaborasi
• Ucapan terima kasih

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Sistem granular

• Sistem banyak partikel klasik bersifat disipatif
yang berinteraksi umumnya melalui gaya
normal (dan juga gaya gesek)
Sistem granular
Aula Timur ITB
H. Pourtavakoli, E J R Parteli, T Pöschel, "Granular dampers: Does particle shape matter?", New
Journal of Physics 18 (7), 073049 (2016).

Sistem granular (lanj.)
• Gaya-gaya lain dapat pula ditambahkan
seperti gaya listrik, gaya gravitasi, gaya
magnetik dan lainnya
• Penyelesaian persamaan gerak dengan
menerapkan Hukum II Newton dan integrasi
numerik  metode dinamika molekuler
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Sistem beberapa partikel

Sistem beberapa partikel
• Minimal dua partikel, atau
• Satu partikel dan lingkungannya
(medan listrik, medan magnetik, tekanan,
gesekan fluida, ..)
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Efek kacang Brasil (EKB) 3-d
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R. Rosyida, S. N. Khotimah, Khairurrijal, S. Viridi, "Efek Kacang Brazil pada Intruder Bola
Bergandeng", Prosiding Simposium Nasional Inovasi Pembelajaran dan Sains 2012 (SNIPS 2012),
Eds. F. D. E. Latief et al., Bandung, Indonesia, 7-8 Juni 2012, pp. 92-95.

EKB pseudo 2-d
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R. Rosyida, S. N. Khotimah, Khairurrijal, S. Viridi, "Efek Kacang Brazil pada Intruder Bola
Bergandeng", Prosiding Simposium Nasional Inovasi Pembelajaran dan Sains 2012 (SNIPS 2012),
Eds. F. D. E. Latief et al., Bandung, Indonesia, 7-8 Juni 2012, pp. 92-95.

Tracking EKB pseudo 2-d
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D. P. P. Aji, S. N. Khotimah, S. Viridi, "Pengamatan Efek Kacang Brazil Dua Dimensi dan Analisa
Transfer Energinya dengan OpenCV yang telah Terstandarkan Prosedurnya", Prosiding Seminar
Kontribusi Fisika 2014 (SKF 2014), Eds. F. T. Akbar et al., Bandung, Indonesia, 17-18 November
2014, pp. 79-82.

Pengaruh koefisien lenting e
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1.T. Kesuma, D. P. P. Aji, S. Viridi, Suprijadi, "Coefficient of Restitution Dependence of Intruder Rise Time in
Two-Dimensional Brazil-Nut Effect", in Symposium on Biomathematics-2015, edited by Y. Takeuchi and M.
Apri, AIP Conference Proceedings 1723, American Institute of Physics, Melville, NY, 2016, pp. 030014.

Konveksi Penyebab EKB 2-d
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H. A. C. Wibowo, T. N. Ain, Y. P. Nugraha, D. P. P. Aji, S. N. Khotimah, S. Viridi, "Experimental Study
of Granular Convection in (Real) Two-Dimension Brazil-Nut Effect", Journal of Physics: Conference
Series 739 (1), 012053 (2016).

Entropi  Kontaktopi
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S. Viridi, S. N. Khotimah, Novitrian, "Competition between Potential Energy Minimization and Number
of Contact Points in Two-Dimension Granular Materials Exhibiting Brazil-nut Effect", in The 5th
Internasional Conference on Mathematics and Natural Sciences-2014, edited by A. Purqon et al., AIP
Conference Proceedings 1677, American Institute of Physics, Melville, NY, 2015, pp. 070001.

Kontaktopi sebagai gaya
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S. N. Khotimah, S. Viridi1, Widayani, T. N. Ain, H. A. C. Wibowo, "Predicting the Motion of an Intruder
in a Vertically Vibrated 2D-Granular-Bed using Contact Points Approximation", KnE Engineering 1 (1),
525 (2016).

Kontaktopi sebagai syarat awal
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1.T. Kesuma, D. P. P. Aji, S. Viridi, Suprijadi, "Influence of Contactopy on Two-Dimensional Brazil-Nut
Effect", IOP Conference Series: Earth and Environmental Science 31 (1), 012001 (2016).

Pertumbuhan koloni
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D Aprianti, S. N. Khotimah, S. Viridi, "Budding Yeast Colony Growth Study Based on Circular Granular Cell",
Journal of Physics: Conference Series 739 (1), 012026 (2016).

Pertumbuhan koloni (lanj.)
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D. Aprianti, F. Haryanto, A. Purqon, S. N. Khotimah, S. Viridi, "Study of Budding Yeast Colony Formation and
its Characterizations by using Circular Granular Cell", Journal of Physics: Conference Series 694 (1), 012079
(2016).

Sifon
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S. Viridi, Novitrian, F. Masterika, W. Hidayat, F. P. Zen, "Segmented Self-Siphon: Experiments and
Simulations", in The 5th International Conference on Research and Education in Mathematics-2011, edited by
E. T. Baskoro et al., AIP Conference Proceedings 1450, American Institute of Physics, Melville, NY, 2012, pp.
190-195.

Single Fluid Volume Element
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S. Viridi, Novitrian, Nurhayati, W. Hidayat, F. D. E. Latief, F. P. Zen, "Development of Single Fluid Volume
Element Method for Simulation of Transient Fluid Flow in Self-Siphons", in 4th International Conference on
Advances in Nuclear Science and Engineering-2013, edited by S. Zaki et al., AIP Conference Proceedings
1615, American Institute of Physics, Melville, NY, 2014, pp. 199-207.

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Kolaborasi

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• S. Viridi, B. Dermawan, "Tumbukan Tak-Elastik Partikel
sebagai Model Terbentuknya Asteroid", Spektra: Jurnal Fisika
dan Aplikasinya 2 (1), 53-60 (2017).
• S. Viridi, B. Dermawan, "Cluster compaction of two-dimension
spherical particles binary mixture as model of forming process
of an asteroid", Journal of Physics: Conference Series 771 (1),
012028 (2016).
KK Astronomi

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• A. Pattisahusiwa, A. Purqon, S. Viridi, "Hydrostatic Simulation
of Earth's Atmospheric Gas Using Multi-particle Collision
Dynamics", IOP Conference Series: Earth and Environmental
Science 29 (1), 012006 (2016).
• U. Fauzi, Z. Irayani, F.D.E. Latief, S. Viridi, "Micro-anisotropy of
Permeability with the Help of Renormalization Group
Approach", Proceedings of Second International Workshop on
Rock Physics, Eds. A. Best et al., Southampton, United
Kingdom, 4-9 Agustus 2013, pp. Oral Session 7 (Digital Rock
Physics), Presenter 3.
KK Fisika Bumi dan
Sistem Kompleks

• U. Fauzi, S. Viridi, Nurhasan, "Molecular Dynamics Simulation
on Particular Grain Weighting in a Granular Pile: An Attempt
to Induce an Artificial Micro-Landslide", in International
Conference on Physics and Its Applications-2011, edited by K.
Basar et al., AIP Conference Proceedings 1454, American
Institute of Physics, Melville, NY, 2012, pp. 95-98.
• U. Fauzi, S. Viridi, Q. Ghaisani, "Two Dimension Numerical
Modeling and Laboratory Experiment of Slope Change in
Granular Piles Due to Water Content", in The 4th Asian
Physics Symposium-2010, edited by Khairurrijal et al., AIP
Conference Proceedings 1325, American Institute of Physics,
Melville, NY, 2010, pp. 124-127.
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• N. Amalia, M. Rokhmat, S. Sutisna, S. Viridi, M. Abdullah,
"Analisis Regresi Sifat Tanah Terhadap Rebound Tiang
Pancang", Jurnal Matematika & Sains 22 (1), 9-13 (2017).
• P. M. Widartiningsih, F. Iskandar, M. M. Munir, and S. Viridi,
"Predicting Jet Radius in Electrospinning by Superpositioning
Exponential Functions", Journal of Physics: Conference Series
739 (1), 012097 (2016).
• S. Viridi, M. Abdullah, N. Amalia, "Two-Dimension Curvature
of a Wire: A Simple Model using Shear Modulus Concept",
Research and Development on Nanotechnology in Indonesia 3
(1), 30-43 (2016).
KK Fisika Material
Elektronik

• S. Viridi, Y. Darma, "1-D Gravitation-Trapped-Granular-Gas as
a Simple Counter Device", Proceedings of the 12th
International Conference on Electronics, Information, and
Communication (ICEIC 2013), Eds. S. J. Ko et al., Nusa Dua,
Indonesia, 30 January - 2 February 2013, pp. 48-49.
• E. Sustini, S. N. Khotimah, F. Iskandar, S. Viridi, "Molecular
Dynamics Simulation of Smaller Granular Particles Deposition
on a Larger One Due to Velocity Sequence Dependent
Electrical Charge Distribution", in The 4th Nanoscience and
Nanotechnology Symposium-2011, edited by F. Iskandar et al.,
AIP Conference Proceedings 1415, American Institute of
Physics, Melville, NY, 2011, pp. 209-213.
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• S. N. Khotimah, S. Viridi, Widayani, "Influence of Initial
Velocity on Trajectories of a Charged Particle in Uniform
Crossed Electric and Magnetic Fields", European Journal of
Physics 38 (2), 025204 (2017).
• N. A. Aprianti, S. Viridi, Z. Su'ud, K. Morita, "Particle-based
Simulation of Rayleigh-Taylor Instability", Journal of Physics:
Conference Series 799 (1), 012012 (2017).
• A. Nasrudin, S. Viridi, D. Irwanto, "Charged Particle Flow Base
on Mesoscale Simulation with Coupling MPCD-MD Method in
Two Dimension Channel", Journal of Physics: Conference
Series 799 (1), 012011 (2017).
KK Fisika Nuklir dan
Biofisika

Aula Timur ITB
• W. Hidayat, A. Sulaiman, S. Viridi, F. P. Zen, "The Viscous and
External Forces Effect on the Thermal Denaturation of
Peyrard-Bishop Model", Journal of Physical Chemistry &
Biophysics 5 (5), 1000186 (2015).
• Nurhayati, W. Hidayat, S. Viridi, F. P. Zen, "Pemodelan Aliran
Fluida dalam Pipa Lurus Vertikal Bagian dari Sifon
Menggunakan Dinamika Newton", Prosiding Simposium
Nasional Inovasi Pembelajaran dan Sains 2012 (SNIPS 2012),
Eds. F. D. E. Latief et al., Bandung, Indonesia, 7-8 Juni 2012,
pp. 65-69.
KK Fisika Teoretik
Energi Tinggi dan
Instrumentasi

Aula Timur ITB
• V. Suendo, S. Viridi, "Ab Initio Calculation of UV-Vis
Absorption Spectra of a Single Chlorophyll a Molecule:
Comparison Study between RHF/CIS, TDDFT, and Semi-
Empirical Methods", ITB Journal of Science 44 A (2), 93-112
(2012).
• V. Suendo, S. Viridi, "Algorithms to Produce Discreet Gaussian
Sequences", Jurnal Pengajaran Fisika Sekolah Menengah 2 (1),
19-23 (2010).
KK Kimia Fisik dan
Anorganik

Aula Timur ITB
• S. Viridi, N. Nuraini, "Simulation of Single Microorganism
Motion in Fluid based on Granular Model", in Symposium on
Biomathematics-2015, edited by Y. Takeuchi and M. Apri, AIP
Conference Proceedings 1723, American Institute of Physics,
Melville, NY, 2016, pp. 030022.
• S. Viridi, N. Nuraini, "Self-Motion Mechanism of Chained
Spherical Grains Cells", in Symposium on Biomathematics-
2013, edited by H. Arimura et al., AIP Conference Proceedings
1587, American Institute of Physics, Melville, NY, 2014, pp.
123-126.
KK Matematika
Industri dan
Keuangan

• N. Nuraini, I. K. Adriani, M. S. Baladram, S. Viridi, "Rise Time of
Inverted Triangular Prism Intruder in Vibrating Granular Bed:
Experiments and Model", in The 5th International Conference
on Research and Education in Mathematics-2011, edited by E.
T. Baskoro et al., AIP Conference Proceedings 1450, American
Institute of Physics, Melville, NY, 2012, pp. 201-204.
• S. Viridi, N. Nuraini, M. S. Baladram, A. F. Yanti, I. K. Adriani, N.
Amini, G. Santoso, "Rise Time of Spherical Intruder in
Granular Fluid", Prosiding Simposium Nasional Inovasi
Pembelajaran dan Sains 2011 (SNIPS 2011), Eds. S. Viridi et al.,
Bandung, Indonesia, 22-23 Juni 2011, pp. 412-416.
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• S. Viridi, W. Haryokusuma, W. Yusman, T. Ariadji, "Pemodelan
Tetesan Fluida Saluran Mikro dengan Pendesakan", rnal
Pengajaran Fisika Sekolah Menengah 8 (1), 15-22 (2016).
• W. Yusman, S. Viridi, S. Rachmat, "Geothermal Well
Behaviour Prediction after Air Compress Stimulation using
One-Dimensional Transient Numerical Modelling", IOP
Conference Series: Earth and Environmental Science 29 (1),
012008 (2016).
KK Teknik Pemboran,
Produksi dan
Manajemen Migas

• S. Viridi, W. Yusman, S. Rachmat, "Implementation of
Hagedorn-Brown Correlation Method in Single Fluid Volume
Element (SFVE) Method for Predicting Flow of Geothermal
Well based on Pressure-Depth and Temperature-Depth
Measurement Data at Static Condition", viXra:1506.0010 |
2015-06-02.
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• T. Untoro, S. Viridi, Suprijanto, E. Ekawati, "Modelling of
Mechanical Coupling for Piezoelectric Energy Harvester
Adapted to Low-Frequency Vibration", Journal of Physics:
Conference Series 877 (1), 012042 (2017).
KK Teknik Fisika

Aula Timur ITB
• S. Viridi, F. D. E. Latief, "Bandul Konis", Kunjungan MA
Manba’ul ‘Ulum, Cirebon – OpenLab LPP Salman ITB,
Bandung, Indonesia, 22 Desember 2015.
• S. Viridi, F. D. E. Latief, N. A. Aprianti, U. Fauzi, "Aplikasi
Konsep Gaya Sentripetal: Gerak Benda Titik dalam Drum yang
Berputar Vertikal", Karya Ilmiah Remaja MAN 1 Cibatu, Garut
– OpenLab LPP Salman ITB, Bandung, Indonesia, 13 Oktober
2015.
• Belajar Fisika dengan Kertas, "S. Viridi, F. D. E. Latief, U. Fauzi,
M. Abdullah", Launching Program OpenLab LPP Salman ITB,
Bandung, Indonesia, 5 September 2015.
LPP Salman ITB

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• S. Viridi, Y. Bindar, S. Suhandono, E. Kardena, Rifqi, A. E.
Fitriani, S. I. Ihsani, "Use of Moore’s Law to Predict
Implementation and Advancing of Science and Technology in
Supporting Halal Requirements: a Scopus Study",
viXra:1509.0271 | 2015-09-29.
Pusat Halal Salman
ITB

Aula Timur ITB
• A. Nasrudin, S. Viridi, Y. S. Perkasa, "Analisis Suhu Pada
Simulasi Aliran Hagen-Poiseulli dalam Saluran Persegi Panjang
Dua Dimensi Dengan Metode Multi-Particle Collision
Dynamics", Prosiding Simposium Nasional Inovasi dan
Pembelajaran Sains 2015 (SNIPS 2015), Eds. D. Irwanto et al.,
Bandung, Indonesia, 8-9 Juni 2015, pp. 1-4.
UIN Sunan Gunung
Djati

Aula Timur ITB
• K. Anwar, S. Viridi, D. Rusdiana, I. Kaniawati, "Telaah Alat
Musik Tradisional Etnik Mbojo sebagai Media Pembelajaran
Fisika", Prosiding Simposium Nasional Inovasi dan
Pembelajaran Sains 2016 (SNIPS 2016), Eds. D. Irwanto et al.,
Bandung, Indonesia, 22-21 Juli 2016, pp. 481-490.
Universitas
Pendidikan Indonesia

Aula Timur ITB
• Nurhayati, A. P. Asmara, S. Viridi, "Rancangan Alat Distilasi
dengan Mengaplikasikan Self Siphon pada Pemurnian
Bioetanol Menggunakan Zeolit", Prosiding Simposium
Nasional Inovasi dan Pembelajaran Sains 2015 (SNIPS 2015),
Eds. D. Irwanto et al., Bandung, Indonesia, 8-9 Juni 2015, pp.
125-128.
• Nurhayati, A. P. Asmara, S. Viridi, “Kopi Gelas Terbalik: Antara
Kenikmatan dan Sains“, (dalam persiapan).
UIN Ar-Raniry

Aula Timur ITB
• M. Rosi, S. Viridi, "Reduction the Oxygen Content of the
Coconut Shell Chars Produced by Using Simple Pyrolysis
Method", NNS 2017 (presented).
• M. Rosi, S. Viridi, "Progress on Activated Carbon as an
Electrochemical Double Layer Capacitor Electrode: A review",
(in preparation).
Universitas Telkom

Aula Timur ITB
• T. Suheri, S. Viridi, “Simulasi Perkembangan Ekonomi Suatu
Titik di Antara Dua Pusat Kemajuan dengan Model Gravitasi
dan Model Berbasiskan Agen", (sedang disiapkan)
Universitas Komputer
Indonesia

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Ucapan terima kasih

Para penulis utama / pendamping
• Dalam KK
• Antar KK dalam ITB
• Antar perguruan tinggi di Indonesia
• ..
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Ongoing topics
• Tim Penerapan Sains PT FI: Pasaribu US,
Indratno WS, Amran MB, Prijamboedi B,
Radiman CL, Novitrian, Purqon AP
• Tim Penangkap Kabut Amfoang: Premadi PW,
Wulandari HRT, Irfan M, Djunaiah A, Rachmi A
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Upaya kolaborasi

THE 2017
• ITB, Indonesia (801–1000)  1992-8|1-2
• TU Dortmund, Jerman (301–350)  2004-7|3
• TU Dortmund, Jerman (301–350)  2014|p
• Ōsaka daigaku, Jepang (251–300)  2016-7|v
• Tōkyō Daigaku, Jepang (39)  2017|v
• .., .. (< 39)  2018- | v
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“World University Rankings 2016-2017“, THE, URL https://www.timeshighereducation.com/world-
unive rsity-rankings/2017/world-ranking#!/page/0/length/-1/sort_by/rank/sort_order/asc/cols/stats
[20171118].

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Sistem Granular: Dari Interaksi antar Partikel sampai Interaksi antar Peneliti

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Sistem Granular: Dari Interaksi antar Partikel sampai Interaksi antar Peneliti