Mechanisms of interaction between stationary crossflow instabilities and forward-facing steps

J. Casacuberta, S. Hickel, M. Kotsonis (2021) AIAA Scitech paper 2021-0854. doi: 10.2514/6.2021-0854 We study the interaction between a stationary crossflow instability and forward-facing steps in a swept-wing boundary layer using Direct Numerical...

Transitional Flow Dynamics Behind a Micro-Ramp

J. Casacuberta, K.J. Groot, Q. Ye, S. Hickel (2020) Flow Turbulence and Combustion 104: 533-552. doi: 10.1007/s10494-019-00085-1 Micro-ramps are popular passive flow control devices which can delay flow separation by re-energising the lower portion of...

Effectivity and efficiency of selective frequency damping for the computation of unstable steady-state solutions

J. Casacuberta, K.J. Groot, H.J. Tol, S. Hickel (2018) Journal of Computational Physics 375: 481-497. doi: 10.1016/j.jcp.2018.08.056 Selective Frequency Damping (SFD) is a popular method for the computation of globally unstable steady-state solutions...

Direct numerical simulation of interaction between a stationary crossflow instability and forward-facing steps

J. Casacuberta, S. Hickel, S. Westerbeek, M. Kotsonis (2022) Journal of Fluid Mechanics 943: A46. doi: 10.1017/jfm.2022.456 The interaction between forward-facing steps of several heights and a pre-existing critical stationary crossflow instability of...

Passive stabilization of crossflow instabilities by a reverse lift-up effect

J. Casacuberta, S. Hickel, M. Kotsonis (2024) Physical Review Fluids 9: 043903. doi: 10.1103/PhysRevFluids.9.043903 A novel mechanism is identified, through which a spanwise-invariant surface feature (a two-dimensional forward-facing step)...

Secondary instabilities in swept-wing boundary layers: Direct Numerical Simulations and BiGlobal stability analysis

J. Casacuberta, K.J. Groot, S. Hickel, M. Kotsonis (2022) SciTech Forum and Exposition, San Diego. AIAA paper 2022-2330, doi: 10.2514/6.2022-2330 The evolution of secondary instabilities in a three-dimensional stationary-crossflow-dominated boundary...

Featured Publications

Reτ = 1226, and Reτ = 5118. Read more... Passive stabilization of crossflow instabilities by a reverse lift-up effect J. Casacuberta, S. Hickel, M. Kotsonis (2024) Physical Review Fluids 9: 034903. doi: 10.1103/PhysRevFluids.9.043903 A novel mechanism...

News

multiphase sprays at transcritical pressures that he presented at The Art of Scientific Computing. Congratulations! Jordi Casacuberta wins the Best Junior Speaker award at the 2022 Burgers Symposium. Congratulations!