97 citations · 301 across the 9 of their papers we have counts for
9 papers
Ground-to-Cable Strain Transfer in Unburied DAS on Earth and the Moon
Simone Probst, Marc Serra Garcia, Olav Cornelius +2
Distributed acoustic sensing (DAS) cables are typically buried to ensure good coupling and reduce unwanted atmospheric noise. Unburied deployments are attractive for rapid response…
Observational planning for the 2026 August 5 Falcon 9 Upper Stage lunar impact
Benjamin Fernando, Jennifer Heldmann, Bill Grey +20
On 2026 August 5, at approximately 06:35 UT, a spent Falcon 9 upper stage will impact the lunar surface near Einstein Crater. This event will occur on sunlit terrain near the easte…
Damage Detection in a laboratory-scale wellbore applying Time Reverse Nonlinear Elastic Wave Spectroscopy (TR NEWS)
Erin Dauson, Carly Donahue, Scott DeWolf +4
Time Reverse Nonlinear Elastic Wave Spectroscopy (TR-NEWS) has been used to focus acoustic energy, and make measurements correlated with damage in a variety of industrial materials…
Scaling of Erosion Rate in Subsonic Jet Experiments and Apollo Lunar Module Landings
Philip T. Metzger, John E. Lane, Christopher D. Immer +5
Small scale jet-induced erosion experiments are useful for identifying the scaling of erosion with respect to the various physical parameters (gravity, grain size, gas velocity, ga…
Cratering of Soil by Impinging Jets of Gas, with Application to Landing Rockets on Planetary Surfaces
Philip T. Metzger, Bruce T. Vu, D. E. Taylor +9
Several physical mechanisms are involved in excavating granular materials beneath a vertical jet of gas. These occur, for example, beneath the exhaust plume of a rocket landing on…
Experimental Realization of a Nonlinear Acoustic Lens with a Tunable Focus
Carly M. Donahue, Paul W. J. Anzel, Luca Bonanomi +2
We realize a nonlinear acoustic lens composed of a two-dimensional array of sphere chains interfaced with water. The chains are able to support solitary waves which, when interface…
Stokes' Cradle: Newton's Cradle with Liquid Coating
C. M. Donahue, C. M. Hrenya, R. H. Davis
Flows involving liquid-coated grains are ubiquitous in nature (pollen capture, avalanches) and industry (air filtration, smoke-particle agglomeration, pharmaceutical mixing). In th…
Stokes' Cradle: Normal Three-Body Collisions between Wetted Particles
C. M. Donahue, C. M. Hrenya, R. H. Davis +3
In this work, a combination of experiments and theory is used to investigate three-body, normal collisions between solid particles with a liquid coating (i.e., "wetted" particles).…
Jet-induced cratering of a granular surface with application to lunar spaceports
Philip T. Metzger, Christopher D. Immer, Carly M. Donahue +3
The erosion of lunar soil by rocket exhaust plumes is investigated experimentally. This has identified the diffusion-driven flow in the bulk of the sand as an important but previou…