Craters Formed in Granular Beds by Impinging Jets of Gas

被引：0

作者：

Metzger, Philip T. ^{[1
]}

Latta, Robert C., III ^{[2
]}

Schuler, Jason A. ^{[3
]}

Immer, Christopher D. ^{[3
]}

机构：

[1] NASA, Granular Mech & Regolith Operat Lab, Kennedy Space Ctr, FL 32899 USA

[2] Embry Riddle Aeronaut Univ, Dept Aerosp Engn, Daytona Beach, FL 32114 USA

[3] ASRC Aerosp, Kennedy Space Ctr, Kennedy Space Ctr, FL 32899 USA

来源：

POWDERS AND GRAINS 2009 | 2009年 / 1145卷

关键词：

crater; erosion; scour hole; jet; bearing capacity; rocket exhaust; martian soil; gravity; EROSION;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

When a jet of gas impinges vertically on a granular bed and forms a crater, the grains may be moved by several different mechanisms: viscous erosion, diffused gas eruption, bearing capacity failure, and/or diffusion-driven shearing. The relative importance of these mechanisms depends upon the flow regime of the gas, the mechanical state of the granular material, and other physical parameters. Here we report research in two specific regimes: viscous erosion forming scour holes as a function of particle size and gravity; and bearing capacity failure forming deep transient craters as a function of soil compaction.

引用

页码：767 / +

页数：2

共 50 条

[21] A proposal of a new evaluation scheme of pips and craters formed by arc discharges on electrical contact surfaces
Hasegawa, M
Sawa, K
IEICE TRANSACTIONS ON ELECTRONICS, 2004, E87C (08) : 1277 - 1280
[22] Granular temperature in a gas fluidized bed
Biggs, Mark J.
Glass, Don
Xie, L.
Zivkovic, Vladimir
Buts, Alex
Kounders, M. A. Curt
GRANULAR MATTER, 2008, 10 (02) : 63 - 73
[23] Granular temperature in a gas fluidized bed
Mark J. Biggs
Don Glass
L. Xie
Vladimir Zivkovic
Alex Buts
M. A. Curt Kounders
Granular Matter, 2008, 10 : 63 - 73
[24] EFFECTS OF NOZZLE CONTOUR ON THE AERODYNAMIC CHARACTERISTICS OF UNDEREXPANDED ANNULAR IMPINGING JETS
MASUDA, W
NAKAMURA, T
JSME INTERNATIONAL JOURNAL SERIES B-FLUIDS AND THERMAL ENGINEERING, 1993, 36 (02) : 238 - 244
[25] Structure of strongly underexpanded gas jets submerged in liquids - Application to the wastage of tubes by aggressive jets
Roger, Francis
Carreau, Jean-Louis
Gbahoue, Laurent
Hobbes, Philippe
Allou, Alexandre
Beauchamp, Francois
NUCLEAR ENGINEERING AND DESIGN, 2014, 273 : 119 - 130
[26] Particle dynamics and granular temperatures in dense fluidized beds as revealed by diffusing wave spectroscopy
Zivkovic, V.
Biggs, M. J.
Glass, D. H.
Xie, L.
ADVANCED POWDER TECHNOLOGY, 2009, 20 (03) : 227 - 233
[27] Scour reduction in sand beds against vertical jets by applying sheet-like countermeasures
Takegawa, Naoki
Sawada, Yutaka
Kawabata, Toshinori
MARINE GEORESOURCES & GEOTECHNOLOGY, 2021, 39 (06) : 649 - 658
[28] On the jet penetration height in fluidized beds with two vertical jets
Hong, RY
Guo, QJ
Luo, GH
Zhang, JY
Ding, J
POWDER TECHNOLOGY, 2003, 133 (1-3) : 216 - 227
[29] Temporal evolution of jet induced scour depth in cohesionless granular beds and the phenomenological theory of turbulence
Bombardelli, Fabian A.
Palermo, Michele
Pagliara, Stefano
PHYSICS OF FLUIDS, 2018, 30 (08)
[30] The cooling impact of a pair of confined angled air jets impinging on a printed circuit board
Chiriac, VA
Rosales, JL
ITHERM 2004, VOL 1, 2004, : 641 - 648

← 1 2 3 4 5 →