Frank Kelecy

About Frank Kelecy

Frank Kelecy is a lead technical support engineer with over 20 years of experience at ANSYS. He holds a PhD in mechanical engineering from Iowa State University, and has works with industrial CFD applications at ANSYS, specializing in rotating machinery, acoustics, and aerodynamics.

Optimizing Tunnel Ventilation Fan Blades for Energy Efficiency Using the Adjoint Solver

Because fossil fuel resources around the globe are finite, an overriding engineering design challenge is energy efficiency and sustainability. Today I’ll use tunnel ventilation fans as an example to illustrate how CFD simulation and advancements in our Adjoint Solver in ANSYS 18 can optimize fan blades performance.

According to a report by Mosen Ltd., a leader in this industry, the “greening” of tunnel ventilation is still in its infancy. The application consumes substantial power, sometimes several megawatts; in addition, governmental regulations often require tunnels beyond a certain length (for example, 300 meters) to have ventilation systems that disperse exhaust and control smoke in case of fire. As a result, tunnels need more ventilation capacity than what would be needed for day-to-day air quality. Continue reading