Computational Novel Technique of Helical(spiral) Boundary Condition in Mont Carlo Algorithms

نویسنده

  • Amin Najafi
چکیده

In this method we work out computational novel technique of helical(spiral) boundary condition[6] in Mont Carlo simulation[2] and metropolis algorithm[2] in order to delineate and determine correlation between different points of Markov Chain[1] which indeed are different conditions of spin configuration in this simulation method. The helical(spiral) boundary condition, Which is offered by two prestigious scientists, Newman and Barkema[5], is applied instead of periodic boundary condition[6] that is used in the most of Mont Carlo simulations .This project has been done for several crystal lattices(10*10-20*20-50*50,100*100) in critical temperature of phase transition with the use of 1000000 Mont Carlo loops and 3000 related Markov points. Finally, we observe that resultant variation of graph which is according to the Markov Chain growth decreases as exponential function. Although it should be cited that the Binder Coefficient[1] also has been calculated by this nascent method. It leads to the phase transition T=2.3 KT Which is also compatible and concur with the previous methods and experimental results. This new approach is able to be extended to the others models such as XY model, Heisenberg model,and Algorithms like wolf Swendensen-wang[2].

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Numerical analysis of heat transfer in helical tube with the aluminum oxide (Al2O3) nano fluid injection in water

The most important reason for the design of curved tubes is increasing the heat transfer between the fluid and the wall which has provided many applications in various industries such as air conditioning, micro-electric, heat exchangers and etc. The aim of this study is numerical investigation of nano fluids flow in spiral tubes with injection of base fluid in different Reynolds numbers. Accord...

متن کامل

Wave Motion and Stop-Bands in Pipes with Helical Characteristics Using Wave Finite Element Analysis

Pipes are widely used in many industrial and mechanical applications and devices. Although there are many different constructions according to the specific application and device, these can show helical pattern, such as spiral pipes, wire-reinforced pipes/shells, spring-suspension, and so on. Theoretical modelling of wave propagation provides a prediction about the dynamic behavior, and it is f...

متن کامل

A novel boundary condition for the simulation of the submerged bodies using lattice boltzmann method

In this study, we proposed a novel scheme for the implementation of the no-slip boundary condition in thelattice Boltzmann method (LBM) . In detail , we have substituted the classical bounce-back idea by the direct immersed boundary specification . In this way we construct the equilibrium density functions in such a way that it feels the no-slip boundaries . Therefore , in fact a kind of equili...

متن کامل

A novel technique for a class of singular boundary value problems

In this paper, Lagrange interpolation in Chebyshev-Gauss-Lobatto nodes is used to develop a procedure for finding discrete and continuous approximate solutions of a singular boundary value problem. At first, a continuous time optimization problem related to the original singular boundary value problem is proposed. Then, using the Chebyshev- Gauss-Lobatto nodes, we convert the continuous time op...

متن کامل

Implementation of D3Q19 Lattice Boltzmann Method with a Curved Wall Boundary Condition for Simulation of Practical Flow Problems

In this paper, implementation of an extended form of a no-slip wall boundary condition is presented for the three-dimensional (3-D) lattice Boltzmann method (LBM) for solving the incompressible fluid flows with complex geometries. The boundary condition is based on the off-lattice scheme with a polynomial interpolation which is used to reconstruct the curved or irregular wall boundary on the ne...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2009