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On the combustion of a laminar spray
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Bulzan, Daniel L. Levy, Yeshayahou |
| Copyright Year | 1993 |
| Description | A spray combustor, with flow velocities in the laminar range, exhibits a unique operating mode where large amplitude, self-induced oscillations of the flame shape occur. The phenomenon, not previously encountered, only occurs when fuel is supplied in the form of fine liquid droplets and does not occur when fuel is supplied in gaseous form. Several flow mechanisms are coupled in such a fashion as to trigger and maintain the oscillatory motion of the flame. These mechanisms include heat transfer and evaporation processes, dynamics of two-phase flows, and effects of gravity (buoyancy forces). An interface volume, lying above the fuel nozzle and below the flame was found to be the most susceptible to gravity effects and postulated to be responsible for inducing the oscillatory motion. Heptane fuel was used in the majority of the tests. Tests performed with iso-octane also showed similar results. |
| File Size | 9412790 |
| Page Count | 29 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19940006766 |
| Archival Resource Key | ark:/13960/t0fv3gw01 |
| Language | English |
| Publisher Date | 1993-07-01 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Propulsion And Power Fuel Combustion Propellant Tests Two Phase Flow Heptanes Buoyancy Sprayers Evaporation Flame Propagation Fuel Sprays Oscillating Flow Flames Laminar Flow Combustion Chambers Heat Transfer Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
