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Studies of fluid instabilities in flows of lava and debris
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Fink, Jonathan H. |
| Copyright Year | 1987 |
| Description | At least two instabilities have been identified and utilized in lava flow studies: surface folding and gravity instability. Both lead to the development of regularly spaced structures on the surfaces of lava flows. The geometry of surface folds have been used to estimate the rheology of lava flows on other planets. One investigation's analysis assumed that lava flows have a temperature-dependent Newtonian rheology, and that the lava's viscosity decreased exponentially inward from the upper surface. The author reviews studies by other investigators on the analysis of surface folding, the analysis of Taylor instability in lava flows, and the effect of surface folding on debris flows. |
| File Size | 203986 |
| Page Count | 3 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19870014046 |
| Archival Resource Key | ark:/13960/t8tb60s2f |
| Language | English |
| Publisher Date | 1987-05-01 |
| Access Restriction | Open |
| Subject Keyword | Geophysics Viscosity Lava Rheology Volatility Flow Theory Folds Geology Magma Taylor Instability Flow Stability Gravitational Effects Yield Strength Chemical Composition Mars Surface Debris Mars Volcanoes Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
