ANSYS Discovery: Silencer Analysis in an L-shaped Duct

What You'll Build

This lesson introduces ANSYS Discovery — a fast, interactive simulation tool ideal for conceptual design and early-stage analysis — by modeling airflow through an L-shaped duct fitted with internal silencers. Silencers are widely used in HVAC systems, exhaust ducts, and industrial pipelines to reduce noise and control flow-induced vibration, but their geometry strongly affects both aerodynamic performance and pressure losses. Discovery lets you modify geometry and instantly see how design changes influence the flow.

In this project, you'll compare a baseline duct against silencer-equipped designs and identify the best configuration.

What You'll Learn

• Why silencers are installed in ducts and channels — noise reduction and vibration control — and how their geometry drives aerodynamic trade-offs

• What makes ANSYS Discovery different from Fluent: real-time, interactive simulation built for rapid geometry exploration and early conceptual design

• How to create and prepare an L-shaped duct geometry with internal silencers in Discovery — the key preparation step before any flow or acoustic analysis

• How to quickly modify geometry and visually understand the impact of design changes

• How to evaluate silencer performance through pressure drop and velocity distribution

• How to analyze vortex structures and recirculation in the flow field

• How to run a comparative design study — baseline duct vs. one-, and multi-silencer configurations

• Why a three-silencer layout is the best design choice: it manages the main vortices, stabilizes the flow, reduces turbulence intensity, suppresses large-scale recirculation, and lowers flow-induced noise — all while maintaining acceptable aerodynamic performance

Why It Matters

ANSYS Discovery fills a critical gap in the workflow — fast answers when you're still shaping the design. Learning it alongside Fluent gives you both rapid early exploration and high-fidelity final analysis, a powerful combination for any simulation engineer.