Stefan Wallin

Stefan Wallin is a Researcher at the FLOW MECHANICS department of KTH Royal Institute of Technology in Stockholm, Sweden. His work focuses on turbulence modeling, computational fluid dynamics (CFD), and aerodynamic flow control. He teaches courses such as Applied Fluid Mechanics Calculations and Turbulence, and leads research in the FLOW Turbulence Lab. His research emphasizes Reynolds stress models, large eddy simulation (LES), and hybrid RANS-LES approaches for complex flows.

Key research areas include wind energy systems, atmospheric boundary layer dynamics, and flow separation control. He has contributed to improving turbulence closure models for high-Reynolds number flows and wind turbine wake interactions. His work bridges experimental validation with CFD, addressing challenges in scale effects, variable resolution simulations, and machine learning-enhanced turbulence modeling.

Wallin collaborates on projects involving morphing high-lift devices, climate modeling impacts of turbulence parameterization, and vortex generator jet flow control. His research has applications in renewable energy, aircraft design, and environmental fluid dynamics. He maintains an active publication record in journals like Physical Review Fluids and Boundary-layer Meteorology, with ongoing exploration of anisotropy-resolving subgrid models and hybrid simulation techniques.