Experimental studies of combustor dilution zone aerodynamics. I - Mean flowfields
| Autor: | S. J. Stevens, Jon F. Carrotte |
|---|---|
| Rok vydání: | 1990 |
| Předmět: |
Physics
Jet (fluid) Astrophysics::High Energy Astrophysical Phenomena Mechanical Engineering media_common.quotation_subject Aerospace Engineering Thermodynamics Aerodynamics Mechanics Wake Boundary layer thickness Asymmetry Dilution Fuel Technology Space and Planetary Science Combustor Annulus (firestop) media_common |
| Zdroj: | Journal of Propulsion and Power. 6:297-304 |
| ISSN: | 1533-3876 0748-4658 |
| DOI: | 10.2514/3.25434 |
| Popis: | An experimental investigation has been carried out to study circumferential irregularities in the temperature distribution downstream of a row of 16 heated jets injected normally into a confined annular crossflow at a momentum flux ratio of 4. The heated air was fed to the plunged holes along a representative approach annulus and, despite the uniformity of the approach flow, the velocity profile across the exit plane of each dilution hole revealed a complex flowfield that varied in a random manner from one jet to another. Temperature distributions measured at a plane two hole diameters downstream indicated a lack of symmetry between the dilution jets because of an apparent twist of the temperature contours associated with certain jets. Velocity distributions at the same location indicated a corresponding asymmetry in the double-vortex structure formed in the wake of each jet. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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