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Record #112031:
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MARC recordAn experimental and analytical study on gravity driven free surface flows of cohesionless granular media / R.M. Lang.
| Title: | An experimental and analytical study on gravity driven free surface flows of cohesionless granular media / R.M. Lang. |
| Author(s): | Lang, R. M. |
| Date: | 1991. |
| In: | Eos : transactions, American Geophysical Union. (1991.), Vol. 72(44, supplement) (1991) |
| Abstract: | AGU Fall Meeting Program and Abstracts, December 9-13, 1991. Four-dimensional theory is derived to describe gravity currents in attempt to model motion of dense, flow-type snow avalanches, ice and rock slides. Results indicate that model which includes constant sidewall and bed friction provides excellent comparison to laboratory findings on channel flows. For models with sideways spreading of granulate, flow transition can be accounted for by inclusion of turbulent friction term when initial inclination angle is large enough to affect boundary drag. Temporal and spatial evolution of granulate and final runout position can be predicted to values well within experimental error. |
| Notes: | Eos : transactions, American Geophysical Union. Vol. 72(44, supplement) :182 (1991). |
| Keywords: | 551.578.48 -- Avalanches. 551.578.482 -- Avalanches. Theory, causes. E10 -- Glaciology: snow and avalanches. |
| SPRI record no.: | 112031 |
LDR 01488naa#a2200000#a#4500 001 SPRI-112031 005 20230329163247.0 007 ta 008 230329s1991####xx####|##|###|0||#0|eng#d 035 ## ‡aSPRI-112031 040 ## ‡aUkCU-P‡beng‡eaacr 100 1# ‡aLang, R. M. 245 13 ‡aAn experimental and analytical study on gravity driven free surface flows of cohesionless granular media /‡cR.M. Lang. 260 ## ‡a[S.l.] :‡b[s.n.],‡c1991. 300 ## ‡ap. 182. 500 ## ‡aEos : transactions, American Geophysical Union. Vol. 72(44, supplement) :182 (1991). 520 3# ‡aAGU Fall Meeting Program and Abstracts, December 9-13, 1991. Four-dimensional theory is derived to describe gravity currents in attempt to model motion of dense, flow-type snow avalanches, ice and rock slides. Results indicate that model which includes constant sidewall and bed friction provides excellent comparison to laboratory findings on channel flows. For models with sideways spreading of granulate, flow transition can be accounted for by inclusion of turbulent friction term when initial inclination angle is large enough to affect boundary drag. Temporal and spatial evolution of granulate and final runout position can be predicted to values well within experimental error. 650 07 ‡a551.578.48 -- Avalanches.‡2udc 650 07 ‡a551.578.482 -- Avalanches. Theory, causes.‡2udc 650 07 ‡aE10 -- Glaciology: snow and avalanches.‡2local 773 0# ‡7nnas ‡tEos : transactions, American Geophysical Union. ‡gVol. 72(44, supplement) (1991) ‡wSPRI-1028 917 ## ‡aUnenhanced record from Muscat, imported 2019 948 3# ‡a20230329