activity
20092023
most citedJet-induced cratering of a granular surface with application to lunar spaceports

97 citations · 237 across the 10 of their papers we have counts for

collaborators

10 papers

astro-ph.EP2023

Rocket Cratering in Simulated Lunar and Martian Environments

Christopher Immer, Philip Metzger

With NASA's planned return to the moon and possibly with lunar outposts being formed, repeated landings at the same site will be necessary. Understanding rocket plume interaction w…

astro-ph.EP2023★ 1 cited

Lagrangian Trajectory Modeling of Lunar Dust Particles

John E. Lane, Philip T. Metzger, Christopher D. Immer +1

A mathematical model and software implementation developed to predict trajectories of single lunar dust particles acted on by a high velocity gas flow is discussed. The model uses…

astro-ph.EP2021★ 9 cited

Apollo Video Photogrammetry Estimation of Plume Impingement Effects (conference version)

Christopher Immer, John Lane, Philip Metzger +1

The Constellation Project's planned return to the moon requires numerous landings at the same site. Since the top few centimeters are loosely packed regolith, plume impingement fro…

astro-ph.EP2021★ 24 cited

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…

astro-ph.EP2021★ 44 cited

ISRU Implications for Lunar and Martian Plume Effects

Philip T. Metzger, Xiaoyi Li, Christopher D. Immer +1

Experiments, analyses, and simulations have shown that the engine exhaust plume of a Mars lander large enough for human spaceflight will create a deep crater in the martian soil, b…

astro-ph.EP2021

Modification of Roberts' Theory for Rocket Exhaust Plumes Eroding Lunar Soil

Philip T. Metzger, John E. Lane, Christopher D. Immer

Roberts' model of lunar soil erosion beneath a landing rocket has been updated in several ways to predict the effects of future lunar landings. The model predicts, among other thin…