| contributor author | Philip T. Metzger | |
| contributor author | Christopher D. Immer | |
| contributor author | Carly M. Donahue | |
| contributor author | Bruce T. Vu | |
| contributor author | Robert C. Latta III | |
| contributor author | Matthew Deyo-Svendsen | |
| date accessioned | 2017-05-08T21:16:23Z | |
| date available | 2017-05-08T21:16:23Z | |
| date copyright | January 2009 | |
| date issued | 2009 | |
| identifier other | %28asce%290893-1321%282009%2922%3A1%2824%29.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/45140 | |
| description abstract | 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 previously unrecognized mechanism for erosion dynamics. It has also shown that slow regime cratering is governed by the recirculation of sand in the widening geometry of the crater. Scaling relationships and erosion mechanisms have been characterized in detail for the slow regime. The diffusion-driven flow occurs in both slow and fast regime cratering. Because diffusion-driven flow had been omitted from the lunar erosion theory and from the pressure cratering theory of the Apollo and Viking era, those theories cannot be entirely correct. | |
| publisher | American Society of Civil Engineers | |
| title | Jet-Induced Cratering of a Granular Surface with Application to Lunar Spaceports | |
| type | Journal Paper | |
| journal volume | 22 | |
| journal issue | 1 | |
| journal title | Journal of Aerospace Engineering | |
| identifier doi | 10.1061/(ASCE)0893-1321(2009)22:1(24) | |
| tree | Journal of Aerospace Engineering:;2009:;Volume ( 022 ):;issue: 001 | |
| contenttype | Fulltext | |
