Boundary-layer transition on broad cones rotating in an imposed axial flow

Stephen Garrett; Z. Hussain; S. O.  Stephen

doi:10.2514/MFDC09

Boundary-layer transition on broad cones rotating in an imposed axial flow

Stephen Garrett, Z. Hussain, S. O. Stephen

College of Engineering and Physical Sciences

Research output: Chapter in Book/Published conference output › Conference publication

Abstract

We present stability analyses for the boundary-layer flow over broad cones (half-angle ψ > 40°) rotating in imposed axial flows. Preliminary convective instability analyses are presented that are based on the Orr-Sommerfeld equation for a variety of axial-flow speeds. The results are discussed in terms of the limited existing experimental data and previous stability analyses on related bodies. The results of an absolute instability analysis are also presented which are intended to further those by Garrett & Peake²¹ through the use of a more rigorous steady-flow formulation. Axial flow is seen to delay the onset of both convective and absolute instabilities.

Original language	English
Title of host publication	Proceedings of the 39th AIAA Fluid Dynamics Conference, San Antonio, Tx, USA. Paper AIAA-2009-3810.
Publisher	American Institute of Aeronautics and Astronautics Inc. (AIAA)
ISBN (Print)	9781563479755
DOIs	https://doi.org/10.2514/MFDC09 https://doi.org/10.2514/6.2009-3810
Publication status	Published - 2009

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Name	39th AIAA Fluid Dynamics Conference

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Garrett, S., Hussain, Z., & Stephen, S. O. (2009). Boundary-layer transition on broad cones rotating in an imposed axial flow. In Proceedings of the 39th AIAA Fluid Dynamics Conference, San Antonio, Tx, USA. Paper AIAA-2009-3810. Article 2009-3810 (39th AIAA Fluid Dynamics Conference). American Institute of Aeronautics and Astronautics Inc. (AIAA). https://doi.org/10.2514/MFDC09, https://doi.org/10.2514/6.2009-3810

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title = "Boundary-layer transition on broad cones rotating in an imposed axial flow",

abstract = "We present stability analyses for the boundary-layer flow over broad cones (half-angle ψ > 40°) rotating in imposed axial flows. Preliminary convective instability analyses are presented that are based on the Orr-Sommerfeld equation for a variety of axial-flow speeds. The results are discussed in terms of the limited existing experimental data and previous stability analyses on related bodies. The results of an absolute instability analysis are also presented which are intended to further those by Garrett & Peake21 through the use of a more rigorous steady-flow formulation. Axial flow is seen to delay the onset of both convective and absolute instabilities.",

author = "Stephen Garrett and Z. Hussain and Stephen, {S. O.}",

year = "2009",

doi = "10.2514/MFDC09",

language = "English",

isbn = "9781563479755",

series = "39th AIAA Fluid Dynamics Conference",

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Garrett, S, Hussain, Z & Stephen, SO 2009, Boundary-layer transition on broad cones rotating in an imposed axial flow. in Proceedings of the 39th AIAA Fluid Dynamics Conference, San Antonio, Tx, USA. Paper AIAA-2009-3810.., 2009-3810, 39th AIAA Fluid Dynamics Conference, American Institute of Aeronautics and Astronautics Inc. (AIAA). https://doi.org/10.2514/MFDC09, https://doi.org/10.2514/6.2009-3810

Boundary-layer transition on broad cones rotating in an imposed axial flow. / Garrett, Stephen; Hussain, Z.; Stephen, S. O. .
Proceedings of the 39th AIAA Fluid Dynamics Conference, San Antonio, Tx, USA. Paper AIAA-2009-3810.. American Institute of Aeronautics and Astronautics Inc. (AIAA), 2009. 2009-3810 (39th AIAA Fluid Dynamics Conference).

Research output: Chapter in Book/Published conference output › Conference publication

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T1 - Boundary-layer transition on broad cones rotating in an imposed axial flow

AU - Garrett, Stephen

AU - Hussain, Z.

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PY - 2009

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N2 - We present stability analyses for the boundary-layer flow over broad cones (half-angle ψ > 40°) rotating in imposed axial flows. Preliminary convective instability analyses are presented that are based on the Orr-Sommerfeld equation for a variety of axial-flow speeds. The results are discussed in terms of the limited existing experimental data and previous stability analyses on related bodies. The results of an absolute instability analysis are also presented which are intended to further those by Garrett & Peake21 through the use of a more rigorous steady-flow formulation. Axial flow is seen to delay the onset of both convective and absolute instabilities.

AB - We present stability analyses for the boundary-layer flow over broad cones (half-angle ψ > 40°) rotating in imposed axial flows. Preliminary convective instability analyses are presented that are based on the Orr-Sommerfeld equation for a variety of axial-flow speeds. The results are discussed in terms of the limited existing experimental data and previous stability analyses on related bodies. The results of an absolute instability analysis are also presented which are intended to further those by Garrett & Peake21 through the use of a more rigorous steady-flow formulation. Axial flow is seen to delay the onset of both convective and absolute instabilities.

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PB - American Institute of Aeronautics and Astronautics Inc. (AIAA)

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Garrett S, Hussain Z, Stephen SO. Boundary-layer transition on broad cones rotating in an imposed axial flow. In Proceedings of the 39th AIAA Fluid Dynamics Conference, San Antonio, Tx, USA. Paper AIAA-2009-3810.. American Institute of Aeronautics and Astronautics Inc. (AIAA). 2009. 2009-3810. (39th AIAA Fluid Dynamics Conference). doi: 10.2514/MFDC09, 10.2514/6.2009-3810

Boundary-layer transition on broad cones rotating in an imposed axial flow

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