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Lorenz System
Equations:
dx/dt = σ(y − x) • dy/dt = x(ρ − z) − y • dz/dt = xy − βz
Integration & Visualization
RK4 integrator, projection selectable, color by time/speed/z. Try classic σ=10, ρ=28, β=8/3.
In the context of the Lorenz system, which is a mathematical model of atmospheric convection, σ (sigma), ρ (rho), and β (beta) are crucial dimensionless parameters that govern the system’s chaotic behavior. Here’s a breakdown of what each parameter represents:
σ (Sigma): Prandtl Number: This parameter relates the kinematic viscosity of the fluid to its thermal diffusivity. It essentially indicates how quickly momentum diffuses compared to heat in the fluid.
ρ (Rho): Rayleigh Number: This parameter signifies the strength of the external forcing or the temperature difference across the fluid layer. A higher Rayleigh number implies stronger convection. The onset of instability and chaotic behavior in the Lorenz system is related to the value of ρ.
β (Beta): Dimension Parameter: This parameter represents the physical dimensions of the fluid layer itself. Specifically, it relates the aspect ratio of the fluid layer, influencing the geometry of the convection cells formed.
