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Rheology of foam near the order-disorder phase transition
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Holt, R. Glynn McDaniel, J. Gregory |
| Copyright Year | 1999 |
| Description | Foams are extremely important in a variety of industrial applications. Foams are widely used in fire-fighting applications, and are especially effective in fighting flammable liquid fires. In fact the Fire Suppression System aboard the Space Shuttle utilizes cylinders of Halon foam, which, when fired, force a rapidly expanding foam into the convoluted spaces behind instrument panels. Foams are critical in the process of enhanced oil recovery, due to their surface-active and highly viscous nature. They are also used as drilling fluids in underpressurized geologic formations. They are used as transport agents, and as trapping agents. They are also used as separation agents, where ore refinement is accomplished by froth flotation of the typically lighter and hydrophobic contaminants. The goal of the proposed investigation is the determination of the mechanical and rheological properties of foams, utilizing the microgravity environment to explore foam rheology for foams which cannot exist, or only exist for a short time, in 1g. |
| File Size | 721890 |
| Page Count | 6 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20010004338 |
| Archival Resource Key | ark:/13960/t4hn05q0k |
| Language | English |
| Publisher Date | 1999-03-01 |
| Access Restriction | Open |
| Subject Keyword | Fluid Mechanics And Thermodynamics Foams Pressure Dependence Order-disorder Transformations Acoustic Levitation Rheology Sound Fields Mechanical Properties Microgravity Drops Liquids Stress Measurement Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
