5 papers
Characteristic Sensitivity Ensembles for Inference of Hidden Dynamics from Marginal Observations
Qi Wang, Gustaaf Jacobs
A framework is developed for the inference of dynamics described by a generalized system of ordinary differential equations. A stochastic gradient method is coined that infers dyna…
Robust Spectral Solver for High-Fidelity Investigations of Aerospike Nozzle Flow Dynamics
Zachary Pyle, Gustaaf B. Jacobs
A spectral element solver is developed for the high-fidelity simulation of the unsteady flow over an aerospike nozzle. The Navier-Stokes solver is a kinetic-energy-preserving, disc…
Data-driven nonlinear aerodynamics models with certifiably optimal boundedness properties
A. Leonid Heide, Shih-Chi Liao, Sergio Castiblanco-Ballesteros +3
Obtaining predictive low-order models is a central challenge in fluid dynamics. Data-driven frameworks have been widely used to obtain low-order models of aerodynamic systems; yet,…
The Footprint of Laminar Separation on a Wall-Bounded Wing Section at Transitional Reynolds Numbers
Charles Klewicki, Bjoern F. Klose, Gustaaf B. Jacobs +1
When a chordwise Reynolds number (Re) falls below about the performance of wings and aerodynamic sections become sensitive to viscous phenomena, including boundary layer sep…
Lagrangian Liouville models of multiphase flows with randomly forced inertial particles
Daniel Dominguez-Vazquez, Sergio A. Castiblanco-Ballesteros, Gustaaf B. Jacobs +1
Eulerian-Lagrangian models of particle-laden (multiphase) flows describe fluid flow and particle dynamics in the Eulerian and Lagrangian frameworks respectively. Regardless of whet…