Example: enhanced_cfd_demo

Figure 1.3 — Example: Enhanced CFD Demo

Crate: cfd-suite (workspace root)
Run: cargo run --example enhanced_cfd_demo
Source: examples/enhanced_cfd_demo.rs

What This Example Demonstrates

Advanced 2D incompressible Navier-Stokes around a circular cylinder at Re = 100 000 with LES turbulence, WENO5/7 reconstruction, and immersed-boundary geometry.

Key Code Snippet

use cfd_2d::physics::turbulence::{MilesLES, SigmaModel, VremanModel};
use cfd_math::high_order::weno::WenoReconstruction;
use cfd_math::time_stepping::RungeKuttaChebyshev;

let vreman = VremanModel::new();  // C_V coefficient from Vreman (2004)
let sigma  = SigmaModel::new();   // σ-model (Nicoud et al. 2011)
let miles  = MilesLES::new();     // MILES: monotone implicit LES

let weno = WenoReconstruction::weno5(); // 5th-order shock-capturing
let rk_cheb = RungeKuttaChebyshev::new(10); // stable for stiff diffusion

Physics Background

• Vreman SGS: νt = C_V √(B_β/α_ij α_ij), zero in laminar regions by construction
• WENO5: 5th-order accurate for smooth regions, ENO near discontinuities
• RK-Chebyshev: s-stage explicit method stable up to Δt ~ O(s²) for diffusion

Book Chapter

← CFDrs Architecture and Problem Setup