Yalu Zhu

Frequency effects of alternating dielectric-barrier-discharge plasma actuation on turbulent flow of circular cylinder

Abstract An in-house solver for the three-dimensional, unsteady, compressible Navier–Stokes equations with a large-eddy simulation (LES) turbulence model is applied to simulate the unsteady flow over a circular cylinder at a Reynolds number of 15,000 under the control of a pair o...

Data-Driven Modal Decomposition Analysis of Unsteady Flow in Multistage Turbine

Two data-driven modal analysis approaches, proper orthogonal decomposition (POD) and dynamic mode decomposition (DMD), are applied to analyze the unsteady flow obtained by solving the Reynolds-averaged Navier–Stokes (RANS) equations in a 1.5-stage axial turbine. The reduced-order...