3 papers
math.NA2026
Data Assimilation with Sparse Observations
Nan Jiang, William Layton, Nanda Nechingal Raghunathan +1
Data assimilation by nudging (also called CDA) yields exponentially decaying errors and an infinite predictability horizon if the method parameter is large enough and the observati…
physics.flu-dyn2026
Modeling and Stabilization of Transport-Dominated Flows
Christopher Agesen, Sam Bradford, Abhijnan Dikshit +7
This report explores and compares numerical stabilization methods for transport-dominated flows arising in atmospheric modeling. The Streamline-Upwind (SU) and Streamline-Upwind Pe…
math.NA2026
Energy dissipation rates of ensemble eddy viscosity models of turbulence: the periodic box
William Layton, Nanda Nechingal Raghunathan
Classical eddy viscosity models of turbulence add an eddy viscosity term based on the Kolmogorov-Prandtl parameterization by a turbulent length scale and a turbulent kinetic en…