Download November's image for your screen 💻

All the noise, noise, noise!

Higher-speed fans can positively impact engine cooling performance but are typically noisier. In addition to making communication inside and outside the cabin difficult, noise from fans can also increase operator fatigue.

Our Lattice Boltzmann approaches leverage their weakly dissipative formulation to capture acoustic pressure fluctuations directly in the CFD solution pressure field. These simulation results can be leveraged to optimize the design of a fan, or of its surroundings. Combining fan and exhaust noise simulations with measurements from other additional noise sources enables analysis of the overall acoustic packaging of machinery.