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15 - General Engineering

University of Sussex

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Output 15 of 50 in the submission

Article title

Effects of Free-stream Turbulence on a Transitional Separated-reattached Flow over a Flat Plate with a Sharp Leading Edge

Type

D - Journal article

DOI

10.1016/j.ijheatfluidflow.2009.04.010

Title of journal

International Journal of Heat and Fluid Flow

Article number

Volume number

Issue number

First page of article

1026

ISSN of journal

0142-727X

Year of publication

2009

URL

http://dx.doi.org/10.1016/j.ijheatfluidflow.2009.04.010

Number of additional authors

Additional information

Significant new contributions have been made in understanding the physics of separated-reattached flows. In particular, the so called low-frequency flapping, observed in several experimental studies, was not seen under 2% free-stream turbulence; thus indicating strongly that this low-frequency mode may only appear in the case of turbulent separation and not transitional cases, where flow is still laminar at separation. In addition, the study shows that the free shear layer under 2% free-stream turbulence starts to become unstable due to the same mechanism (Kelvin-Helmholtz instability) as in the nearly zero free-stream turbulence case.

Interdisciplinary

Cross-referral requested

Research group

I - Industrial Informatics Signal Processing

Proposed double-weighted

Double-weighted statement

Reserve for a double-weighted output

Non-English

English abstract