Art in science entries will be listed here after approval by
the art in science chairs.
Image Entries:
Entry ID: 51DCASS-004
Shiny and Bright
Elizabeth Benitez
Air Force Research Laboratory
Nicholas Bisek
Air Force Research Laboratory
An overlay of Mach contours on a Partially Closed Cavity configuration tested in the AFRL Mach 6 Ludwieg tube.
Distribution Statement A: Approved for Public Release; Distribution is Unlimited. PA# AFRL-2025-5768; Cleared 12/18/2025.
Video Entries:
Entry ID: 51DCASS-007
I’m too hot! No, wait, now I’m cold!
Nicholas Bisek
Air Force Research Laboratory
Elizabeth K. Benitez
Air Force Research Laboratory
The movie synchronizes high-speed focused-Schlieren images with time-accurate DES CFD results showing the Mach 1 sonic line (pink) and contours of total temperature for Mach 6 air interacting with a partially-closed cavity. The oscillatory shear-shock interaction seen in the Schlieren causes rapid heating (red) and cooling (blue) due to local changes in pressure work as the upstream boundary layer separation grows and contracts.
Entry ID: 51DCASS-017
Shock Train in a Rectangular Duct
Jack Sullivan
The Ohio State University
Datta V. Gaitonde
The Ohio State University
When designing a scramjet engine, one of the critical questions is what geometry ought to be used for the isolator region of the flow path. A common choice is to use constant area, rectangular ducts, as they are straightforward to machine and install on flight vehicles. However, the use of rectangular geometry inevitably alters the unsteadiness displayed by the shock train residing in the duct, with strong three-dimensional effects being introduced to the already complex flow. The presented work investigates the consequences of this three-dimensional unsteadiness, leveraging high-fidelity simulations to capture shock train dynamics over an extensive range of spatiotemporal scales.
