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Flowfield measurements in a slot-bled oblique shock wave and turbulent boundary-layer interaction
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Davis, D. O. Willis, B. P. Hingst, W. R. |
| Copyright Year | 1998 |
| Description | An experimental investigation was conducted to determine the flowfield inside a bleed slot used to control an oblique shock-wave and turbulent boundary-layer interaction. The slot was oriented normal to the primary flow direction and had a width of 1.0 cm (primary flow direction), a length of 2.54 cm, and spanned 16.5 cm. The approach boundary layer upstream of the interaction was nominally 3.0 cm thick. Two operating conditions were studied: M = 1.98 with a shock generator deflection angle of 6 deg and M= 2.46 with a shock generator deflection angle of 8 deg. Measurements include surface and flowfield static pressure, Pitot pressure, and total mass-flow through the slot. The results show that despite an initially two-dimensional interaction for the zero bleed-flow case, the slot does not remove mass uniformly in the spanwise direction. Inside the slot, the flow is characterized by two separation regions which significantly reduce the effective flow area. The upper separation region acts as an aerodynamic throat resulting in supersonic flow through much of the slot. |
| File Size | 3595635 |
| Page Count | 14 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19980201099 |
| Archival Resource Key | ark:/13960/t87h6hz2b |
| Language | English |
| Publisher Date | 1998-04-01 |
| Access Restriction | Open |
| Subject Keyword | Aerodynamics Supersonic Flow Static Pressure Interactional Aerodynamics Oblique Shock Waves Shock Wave Generators Flow Measurement Upstream Pressure Distribution Turbulent Boundary Layer Shock Wave Interaction Boundary Layer Control Slots Throats Mass Flow Factors Flow Distribution Boundary Layer Transition Mass Flow Flow Deflection Shock Wave Profiles Mach Number Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
