Title

Schlieren Imaging Of Banded Structures In Transitional Jets

Document Type

Conference Proceeding

Faculty

Faculty of Computing, Health and Science

School

School of Engineering

RAS ID

6305

Comments

Al-Abdeli, Y., & Davis, M. R. (2008). Schlieren Imaging Of Banded Structures In Transitional Jets. Proceedings of the 5th Australian Conference on Laser Diagnostics in Fluid Mechanics and Combustion.

Abstract

Experiments have been conducted across the range of flows defining the laminar-to-turbulent transition of non-heated buoyant jets. Helium jets, of circular cross section, are ejected vertically upwards into a quiescent atmosphere and investigated using twin-mirror Schlieren imaging. An interesting transverse jet structure, similar to bands or stripes, is sometimes visualized in the laminar regime. These structures have a spatial scale greater than that of the nozzle exit diameter and span the entire width of the free jet. The paper provides an initial investigation into these structures.

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