The effect of constructive and destructive interference on the downstream development of twin jets in a crossflow. II - Interference effects of angularly displaced jets
Abstract
This experimental study focuses on the interaction between two circular jets exhausting into an otherwise undisturbed crossflow. Flow visualization has been used to study the penetration of twin jets transversely injected into a crossflow. Over the jet-spacing/diameter range tested, 2.7 to 12.1, the momentum flux ratio appears not to play a role in the depth penetration as the angular orientation is changed. This observation seems not to be true for the largest spacing tested at the lowest momentum ratio. At the smallest spacing tested, S/D = 2.7, constructive interference dominates as the jets are rotated from their side-by-side configuration to 90 deg. All other jet spacings show a mix of constructive and destructive interference as the angular orientation is changed.
- Publication:
-
AIAA, SAE, ASME, and ASEE, 26th Joint Propulsion Conference
- Pub Date:
- July 1990
- Bibcode:
- 1990jpof.confT....D
- Keywords:
-
- Aerodynamic Interference;
- Cross Flow;
- Flow Characteristics;
- Flow Distribution;
- Free Flow;
- Parallel Flow;
- Angular Velocity;
- Flow Visualization;
- Interactional Aerodynamics;
- Wind Tunnels;
- Fluid Mechanics and Heat Transfer