Fractal Aggregation Simulation in the Nanofluid Drying

2011 ◽  
Author(s):  
A. Crivoi ◽  
Fei Duan
Keyword(s):  
Thin Film ◽  
Monte Carlo ◽  
Monte Carlo Simulations ◽  
Lattice Gas ◽  
Two Dimensional ◽  
Dimensional Lattice ◽  
Thin Film Evaporation ◽  
Film Evaporation ◽  
Branched Structures ◽  
Good Agreement

Nanofluids are kinds of fluids engineered by dispersing nanoparticles in base fluids. After full evaporation drying of nanofluids, the nanoparticles are left on the substrate and can self-organize in different structures on the substrate. The fractal-like branched structures can be formed, these phenomena are simulated in the study. Two dimensional lattice-gas model is applied in the process of the residual thin film evaporation drying. The Monte Carlo simulations show the formation of well-developed fractal aggregates for this configuration. The results of simulations are in good agreement with previously reported experimental results in residual nanofluid thin-film drying.

scholarly journals Two-dimensional computational modeling of thin film evaporation

2017 ◽  
Vol 121 ◽  
pp. 237-248 ◽  
Author(s):  
Yiğit Akkuş ◽  
Hakan I. Tarman ◽  
Barbaros Çetin ◽  
Zafer Dursunkaya
Keyword(s):  
Thin Film ◽  
Computational Modeling ◽  
Two Dimensional ◽  
Thin Film Evaporation ◽  
Film Evaporation

Intercalate order–disorder transition in stage-2 AgxTiS2

1983 ◽  
Vol 61 (3) ◽  
pp. 397-404 ◽  
Author(s):  
M. Plischke ◽  
K. K. Bardhan ◽  
R. Leonelli ◽  
J. C. Irwin
Keyword(s):  
Order Parameter ◽  
Lattice Gas ◽  
Two Dimensional ◽  
Pure Crystal ◽  
Dimensional Lattice ◽  
Disorder Transition ◽  
Monte Carlo Techniques ◽  
Zone Folding ◽  
Silver Atoms ◽  
Good Agreement

Stage 2 samples of AgxTiS2 have been prepared by the electrointercalation of Ag into TiS2. The intercalated silver atoms are observed to undergo an order–disorder transition with Tc = 265 K. Raman spectra from the ordered phase of the samples contain both the modes expected from the pure crystal and two additional modes. The new modes are attributed to a zone-folding mechanism and a theoretical model is presented to describe this process. The model predicts that the intensity of the zone-folding modes should vary as the order parameter squared (η2). Values η2 as a function of temperature were calculated using a two-dimensional lattice gas model and Monte Carlo techniques. Good agreement is obtained between the calculations and the experimentally observed temperature dependence of the zone-folded mode intensities. The results are discussed and compared with recent theoretical and experimental developments.

scholarly journals EFFECTIVE LATTICE MODELS FOR TWO-DIMENSIONAL QUANTUM ANTIFERROMAGNETS

1990 ◽  
Vol 04 (16) ◽  
pp. 1043-1052 ◽  
Author(s):  
SUBIR SACHDEV ◽  
R. JALABERT
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Simulations ◽  
Effective Action ◽  
Lattice Model ◽  
Lattice Models ◽  
Two Dimensional ◽  
Dimensional Lattice ◽  
Quantum Antiferromagnets ◽  
Second Order Transition ◽  
Berry Phases

We introduce a 2+1 dimensional lattice model, S0, of N complex scalars coupled to a compact U(1) gauge field as a description of quantum fluctuations in SU(N) antiferromagnets. Duality maps are used to obtain a single effective action for the Néel and spin-Peierls order parameters. We examine the phases of S0 as a function of N: the N→∞ limit can be deduced from previous work. At N=1, S0 describes monopoles and their Berry phases, spin-Peierls order, but not the Néel field: Monte-Carlo simulations show a second-order transition from a spin-Peierls phase to a Higgs phase which is the remnant of the Néel phase.

Sign in / Sign up

Export Citation Format

Share Document