Michael Emory

TL;DR: In this paper, an approach to model-form uncertainty quantification that does not assume the eddy-viscosity hypothesis to be exact is proposed, and the methodology for estimation of uncertainty is demonstrated for plane channel flow, for a duct with secondary flows, and for the shock/boundary-layer interaction over a transonic bump.

TL;DR: A novel methodology based on active subspaces is employed to characterize the effects of the input uncertainty on the scramjet performance, and this dimension reduction enables otherwise infeasible uncertainty quantification.

TL;DR: In this article, the authors introduce a new approach for addressing epistemic uncertainty which is then demonstrated for the ow over a 2D transonic bump conguration, where the well known SST k! turbulence model is considered.

TL;DR: In this paper, large eddy simulations are performed for a cold ideallyexpanded dual-stream jet issued from cylindrical co-axial nozzles, with supersonic primary stream (Mach number M1 = 1.55) and subsonic secondary stream (M2 = 0.9).

TL;DR: In this article, a physics-based approach is proposed to quantify the uncertainty in the Reynolds-averaged Navier-Stokes simulations of separated flows over streamlined surfaces, where perturbations are defined in terms of a decomposition of the Reynolds stress tensor, based on the tensor magnitude and the eigenvalues and eigenvectors of the normalized anisotropy tensor.