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The instability of a round jet surrounded by an annular shear layer.

Publication ,  Journal Article
Anderson, R; Bejan, A
Published in: TRANS. ASME J. FLUIDS ENGNG.
January 1, 1985

Uses a simple stability model to identify some of the global properties of large scale eddies, in particular the radial dependence of the amplitudes of growing disturbances in order to study the extent to which the disturbances penetrate the jet and its surroundings. Shows a pronounced change in scaling behaviour as t/a increases above 0.5. Puffs correspond to the response of a jet with a thick shear layer while ripples correspond to the response of a jet with a very thin shear layer. Examines wavelength dependence and shows that depth of disturbance penetration inside and outside the jet is directly proportional to the wavelength of the disturbance, and for certain waves, depth is directly proportional to local thickness of the shear layer. Spade like puffs are attributed to phase variations. (C.J.U.)

Duke Scholars

Published In

TRANS. ASME J. FLUIDS ENGNG.

ISSN

0098-2202

Publication Date

January 1, 1985

Volume

107

Issue

2 , Jun. 1985

Start / End Page

258 / 263

Related Subject Headings

  • Mechanical Engineering & Transports
  • 40 Engineering
  • 09 Engineering
 

Citation

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Anderson, R., & Bejan, A. (1985). The instability of a round jet surrounded by an annular shear layer. TRANS. ASME J. FLUIDS ENGNG., 107(2, Jun. 1985), 258–263.
Anderson, R., and A. Bejan. “The instability of a round jet surrounded by an annular shear layer.TRANS. ASME J. FLUIDS ENGNG. 107, no. 2, Jun. 1985 (January 1, 1985): 258–63.
Anderson R, Bejan A. The instability of a round jet surrounded by an annular shear layer. TRANS ASME J FLUIDS ENGNG. 1985 Jan 1;107(2, Jun. 1985):258–63.
Anderson, R., and A. Bejan. “The instability of a round jet surrounded by an annular shear layer.TRANS. ASME J. FLUIDS ENGNG., vol. 107, no. 2, Jun. 1985, Jan. 1985, pp. 258–63.
Anderson R, Bejan A. The instability of a round jet surrounded by an annular shear layer. TRANS ASME J FLUIDS ENGNG. 1985 Jan 1;107(2, Jun. 1985):258–263.

Published In

TRANS. ASME J. FLUIDS ENGNG.

ISSN

0098-2202

Publication Date

January 1, 1985

Volume

107

Issue

2 , Jun. 1985

Start / End Page

258 / 263

Related Subject Headings

  • Mechanical Engineering & Transports
  • 40 Engineering
  • 09 Engineering