Zobrazeno 1 - 10
of 47
pro vyhledávání: '"Wright, Esteban"'
Autor:
Suo, Bingcheng, Quillen, A. C., Neiderbach, Max, O'Brient, Luke, Miakhel, Abobakar Sediq, Skerrett, Nathan, Couturier, Jérémy, Lherm, Victor, Wang, Jiaxin, Askari, Hesam, Wright, Esteban, Sánchez, Paul
We carry out experiments of 104 m/s velocity oblique impacts into a granular medium (sand). Impact craters have nearly round rims even at a grazing angle of about $10^\circ$, however, the strength of seismic pulses excited by the impact is dependent
Externí odkaz:
http://arxiv.org/abs/2308.01876
Autor:
Miklavcic, Peter M., Tokar, Ethan, Wright, Esteban, Sanchez, Paul, Glade, Rachel, Quillen, Alice, Askari, Hesam
The interactions of solid objects with granular media is countered by a resistance force that stems from frictional forces between the grains and the media's resistance to inertia imposed by the intruder. Earlier theories of granular intrusion have s
Externí odkaz:
http://arxiv.org/abs/2307.10998
Autor:
Neiderbach, Max, Suo, Bingcheng, Wright, Esteban, Quillen, A. C., Lee, Mokin, Miklavcic, Peter, Askari, Hesam, Sánchez, Paul
In laboratory experiments, high speed videos are used to detect and track mm-size surface particle motions caused by a low velocity normal impact into sand. Outside the final crater radius and prior to the landing of the ejecta curtain, particle disp
Externí odkaz:
http://arxiv.org/abs/2207.02897
Oblique, low-velocity impacts onto extraterrestrial terrain are an inevitable occurrence during space exploration. We conduct two-dimensional discrete simulations to model such impacts into a bed of triangular grains. Finite element method provides t
Externí odkaz:
http://arxiv.org/abs/2201.02585
Autor:
Quillen, A. C., Neiderbach, Max, Suo, Bingcheng, South, Juliana, Wright, Esteban, Skerrett, Nathan, Sánchez, Paul, Cúñez, Fernando David, Miklavcic, Peter, Askari, Heesam
We carry out experiments of low velocity normal impacts into granular materials that fill an approximately cylindrical 42 litre tub. Motions in the granular medium are tracked with an array of 7 embedded accelerometers. Longitudinal pulses excited by
Externí odkaz:
http://arxiv.org/abs/2201.01225
Autor:
Wright, Esteban, Quillen, Alice C., Sanchez, Paul, Schwartz, Stephen R., Nakajima, Miki, Askari, Hesam, Miklavcic, Peter
We compare low velocity impacts that ricochet with the same impact velocity and impact angle into granular media with similar bulk density, porosity and friction coefficient but different mean grain size. The ratio of projectile diameter to mean grai
Externí odkaz:
http://arxiv.org/abs/2109.06249
Publikováno v:
Phys. Rev. E 104, 014412 (2021)
At high concentration, free swimming nematodes known as vinegar eels ({\it Turbatrix aceti}), collectively exhibit metachronal waves near a boundary. We find that the frequency of the collective traveling wave is lower than that of the freely swimmin
Externí odkaz:
http://arxiv.org/abs/2101.06809
Autor:
Suo, Bingcheng, Quillen, A.C., Neiderbach, Max, O’Brient, Luke, Miakhel, Abobakar Sediq, Skerrett, Nathan, Couturier, Jérémy, Lherm, Victor, Wang, Jiaxin, Askari, Hesam, Wright, Esteban, Sánchez, Paul
Publikováno v:
In Icarus 15 January 2024 408
We explore scenarios for the accretion of ornamental ridges on Saturn's moons Pan, Atlas, and Daphnis from material in Saturn's rings. Accretion of complex shaped ridges from ring material should be possible when the torque from accreted material doe
Externí odkaz:
http://arxiv.org/abs/2007.13227
Autor:
Wright, Esteban, Quillen, Alice, South, Juiliana, Nelson, Randal C., Sanchez, Paul, Siu, John, Askari, Hesam, Nakajima, Miki, Schwartz, Stephen R.
Spin off events and impacts can eject boulders from an asteroid surface and rubble pile asteroids can accumulate from debris following a collision between large asteroids. These processes produce a population of gravitational bound objects in orbit t
Externí odkaz:
http://arxiv.org/abs/2002.01468