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physics.flu-dyn2026
Adjoint Sensitivity Maps for Passive Flow Control Around Rotating Circular Cylinders Across a Wide Operating Envelope
Niklas Kühl
Rotating circular cylinders are employed in a variety of engineering applications, one prominent example being Flettner rotors for wind-assisted ship propulsion. Besides optimizing…
physics.flu-dyn2025
Differential Equation Based Wall Distance Approaches for Maritime Engineering Flows
Niklas Kühl
The paper is concerned with modeling and simulating approaches of wall distance functions based on Partial Differential Equations (PDE). The distance to the nearest wall is require…
physics.flu-dyn2025
Incremental Model Order Reduction of Smoothed-Particle Hydrodynamic Simulations
Eduardo Di Costanzo, Niklas Kühl, Jean-Christophe Marongiu +1
Engineering simulations are usually based on complex, grid-based, or mesh-free methods for solving partial differential equations. The results of these methods cover large fields o…