International Conference on Advances in Nuclear Science and Engineering (ICANSE 2018), 29-30 November 2018, Bandung, Indonesia

1. International Conference on
Advances in Nuclear Science and
Engineering (ICANSE 2018)
29-30 November 2018,
Bandung, Indonesia
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Agent-based Model in
Rectangular Grid for Condensable
Granular Gas Simulation
Sparisoma Viridi*, Freddy Haryanto
Department of Physics, FMIPA, Institut Teknologi Bandung
Jalan Ganesha 10, Bandung 40132, Indonesia
*dudung@gmail.com
v20181130_1

2. International Conference on
Advances in Nuclear Science and
Engineering (ICANSE 2018)
29-30 November 2018,
Bandung, Indonesia
2
Outline
• Introduction
• Model
• Results and discussion
• Closing
..
..

3. International Conference on
Advances in Nuclear Science and
Engineering (ICANSE 2018)
29-30 November 2018,
Bandung, Indonesia
3
Introduction

4. Agent-based model
• A very flexible model
• Agents and environment can be freely defined
• Interaction between agents can be divided
into several types
• As also between agent and enviroment
• Imagination is the only limit
International Conference on
Advances in Nuclear Science and
Engineering (ICANSE 2018)
29-30 November 2018,
Bandung, Indonesia
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5. Previous results
• Eksperiments and a very rough model
• Simulations and several materials phases
• Unphysical motion of agents in innovation
ecosystem – role of STP
International Conference on
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29-30 November 2018,
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6. IWCS 2018: Drying a sand castle
• A cup of sand
+ 20 ml water
heated in oven
with 150 °C
• Observed at
0, 30, 60, and
90 minutes
International Conference on
Advances in Nuclear Science and
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29-30 November 2018,
Bandung, Indonesia
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S Viridi, ZFTW Lestari, TDK Wungu, Suprijadi 2018 "Simple grid-based model of sand-
pile avalanche due to heating process" in IWCS 2018, 30 June, Kanazawa, Japan.

7. IWCS ..: Nonuniform evaporation
International Conference on
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29-30 November 2018,
Bandung, Indonesia
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t = 0.001 t = 0.041 t = 0.054 t = 0.092
t = 0.104 t = 0.144 t = 0.206 t = 0.401

8. SNM 2018: Gas phase
• [0.125 0.125 0.125 0.125 0.125 0.125 0.125 0.125]
International Conference on
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29-30 November 2018,
Bandung, Indonesia
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S Viridi, F Haryanto, "Pemodelan berbasis-agen dan potensinya dalam simulasi sistem
fisis" in SNM 2018, 16-17 November, Bandung, Indonesia.

9. SNM 2018: Liquid phase
• [0.060 0.110 0.110 0.125 0.250 0.125 0.110 0.110]
International Conference on
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29-30 November 2018,
Bandung, Indonesia
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10. SNM 2018: Granular phase
• [0.000 0.000 0.000 0.250 0.500 0.250 0.100 0.100]
International Conference on
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Engineering (ICANSE 2018)
29-30 November 2018,
Bandung, Indonesia
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11. SNM 2018: Solid phase
• [0.000 0.000 0.000 0.000 1.000 0.000 0.000 0.000]
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29-30 November 2018,
Bandung, Indonesia
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12. SNM 2018: Rotating fluid phase
• [p↑ p↗ p→ p↘ p↓ p↙ p← p↖] region dependence
International Conference on
Advances in Nuclear Science and
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29-30 November 2018,
Bandung, Indonesia
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13. SNM 2018: Centrifugal fluid phase
• [p↑ p↗ p→ p↘ p↓ p↙ p← p↖] region dependence
International Conference on
Advances in Nuclear Science and
Engineering (ICANSE 2018)
29-30 November 2018,
Bandung, Indonesia
13

14. • [p↑ p↗ p→ p↘ p↓ p↙ p← p↖] region dependence
SN..: Another rotating fluid phase
International Conference on
Advances in Nuclear Science and
Engineering (ICANSE 2018)
29-30 November 2018,
Bandung, Indonesia
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15. PICS 2018: STP with ABM
International Conference on
Advances in Nuclear Science and
Engineering (ICANSE 2018)
29-30 November 2018,
Bandung, Indonesia
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S Viridi, T Suheri, S Rahimah, NM Sudaryani, D Suhendra 2018 "Science and
Technology Park in Innovation Ecosystem: An Agent-based Model Simulation" in PICS-
2018, 5 November, Bandung, Indonesia.
Age distribution Type distribution

16. International Conference on
Advances in Nuclear Science and
Engineering (ICANSE 2018)
29-30 November 2018,
Bandung, Indonesia
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Model

17. Particle motion
• There are eight directions of motion
0:↑, 1:↗, 2:→, 3:↘, 4:↓, 5:↙, 6:←, 7:↖
• Physical system will determine probability of
moving in each direction
• The rule is simple, if destination is empty then
source can be moved from src to dest
International Conference on
Advances in Nuclear Science and
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29-30 November 2018,
Bandung, Indonesia
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18. Notation: Row vector
• Probability to the eight direction is represent-
ed in a row matrix (direction probability
vector)
[p↑ p↗ p→ p↘ p↓ p↙ p← p↖]
e.g. an isotropic motion
[1/8 1/8 1/8 1/8 1/8 1/8 1/8 1/8]
International Conference on
Advances in Nuclear Science and
Engineering (ICANSE 2018)
29-30 November 2018,
Bandung, Indonesia
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19. Notation: Matrix
• Direction probability vector
pi = [p↑ p↗ p→ p↘ p↓ p↙ p← p↖]
• Direction probablity matrix
International Conference on
Advances in Nuclear Science and
Engineering (ICANSE 2018)
29-30 November 2018,
Bandung, Indonesia
19










=
987
654
321
ppp
ppp
ppp
XP

20. Kinetic energy vs interaction force
• High temperature should produce isotropic
motion direction probability vector
• Existence of interaction force should produce
specific direction probability vector
• At lower temperature force will dominate and
screen the isotropic motion direction
probability vector
International Conference on
Advances in Nuclear Science and
Engineering (ICANSE 2018)
29-30 November 2018,
Bandung, Indonesia
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21. Interaction between matrix?
• Calculate Hadamard product of two or more
matrices
• Normalize the matrix into direction probability
matrix
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29-30 November 2018,
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22. International Conference on
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29-30 November 2018,
Bandung, Indonesia
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Results and discussion

23. Two center of condensation 1
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29-30 November 2018,
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24. Two center of condensation 2
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29-30 November 2018,
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25. Two center of condensation 3
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29-30 November 2018,
Bandung, Indonesia
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26. Two center of condensation 4
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Advances in Nuclear Science and
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29-30 November 2018,
Bandung, Indonesia
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27. Two center of condensation 5
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Advances in Nuclear Science and
Engineering (ICANSE 2018)
29-30 November 2018,
Bandung, Indonesia
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28. Separation distance
• It requires tuning to behave like a liquid-drop
model
International Conference on
Advances in Nuclear Science and
Engineering (ICANSE 2018)
29-30 November 2018,
Bandung, Indonesia
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0
0.2
0.4
0.6
0.8
1
20 40 60 80 100
Ds
N

29. International Conference on
Advances in Nuclear Science and
Engineering (ICANSE 2018)
29-30 November 2018,
Bandung, Indonesia
29
Closing

30. Summaries
• ABM has been used in condensable granular
gas simulation
• There are still unclear simulation parameters
• Physical properties can be used to define
matriks component, i.e. direction probability
vector
• Separation of cluster depends on initial
number of particles but inversely
International Conference on
Advances in Nuclear Science and
Engineering (ICANSE 2018)
29-30 November 2018,
Bandung, Indonesia
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31. Acknowledgements
• Authors would like to thank to committee of
ICANSE 2018, Nuclear Physics and Biophysics
Research Division, and Faculty of Mathematics
and Natural Sciences, Institut Teknologi
Bandung
International Conference on
Advances in Nuclear Science and
Engineering (ICANSE 2018)
29-30 November 2018,
Bandung, Indonesia
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32. Future plans
• Find scalling apropriate law for mapping
physical parameters into simulation
parameters
• Modify force formulation in the term of
motion probability vector and matrix
• Make colloaboration (are you interested in
that? )
International Conference on
Advances in Nuclear Science and
Engineering (ICANSE 2018)
29-30 November 2018,
Bandung, Indonesia
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33. International Conference on
Advances in Nuclear Science and
Engineering (ICANSE 2018)
29-30 November 2018,
Bandung, Indonesia
33
Thank you

34. International Conference on
Advances in Nuclear Science and
Engineering (ICANSE 2018)
29-30 November 2018,
Bandung, Indonesia
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https://osf.io/e8vdk/