Class LatticeBoltzmannSolver

java.lang.Object

org.episteme.natural.physics.classical.matter.fluids.LatticeBoltzmannSolver

public class LatticeBoltzmannSolver
extends Object

2D Lattice Boltzmann Method (LBM) solver for incompressible fluid flow. Uses D2Q9 lattice (2D, 9 velocity directions).

References:

• Succi, S. (2001). The Lattice Boltzmann Equation: For Fluid Dynamics and Beyond. Oxford University Press.
• Chen, S., invalid input: '&' Doolen, G. D. (1998). Lattice Boltzmann method for fluid flows. Annual Review of Fluid Mechanics, 30(1), 329-364.

Since:

1.0

Author:

Silvere Martin-Michiellot, Gemini AI (Google DeepMind)

Constructor Summary

Constructors

Constructor	Description
LatticeBoltzmannSolver(int width, int height, double viscosity)	Creates an LBM solver.

Method Summary

Modifier and Type	Method	Description
double[][]	getDensity()
int	getHeight()
double[][]	getVelocityX()
double[][]	getVelocityY()
int	getWidth()
void	setInletVelocity(double ux0, double uy0)	Sets inlet velocity (left boundary).
void	setObstacle(int x, int y, boolean isObstacle)	Sets an obstacle at a grid point.
void	setProvider(LatticeBoltzmannProvider p)
void	step()	Performs one LBM time step using the provider.

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

LatticeBoltzmannSolver

public LatticeBoltzmannSolver(int width,
 int height,
 double viscosity)

Creates an LBM solver.

Parameters:

width - Grid width

height - Grid height

viscosity - Kinematic viscosity (determines relaxation time)

Method Details

setProvider

public void setProvider(LatticeBoltzmannProvider p)

setObstacle

public void setObstacle(int x,
 int y,
 boolean isObstacle)

Sets an obstacle at a grid point.

setInletVelocity

public void setInletVelocity(double ux0,
 double uy0)

Sets inlet velocity (left boundary).

step

public void step()

Performs one LBM time step using the provider.

getDensity

public double[][] getDensity()

getVelocityX

public double[][] getVelocityX()

getVelocityY

public double[][] getVelocityY()

getWidth

public int getWidth()

getHeight

public int getHeight()