### Abstract

A homogeneous turbulent shear flow in its asymptotic stage of development was subjected to an additional (longitudinal) strain by passing the flow through gradual contraction in the direction perpendicular to that of the mean shear. Two contractions, of area ratio 1. 4 and 2. 6, were used. The mean velocity distributions agree quite well with calculations based on the (inviscid) Bernoulli equation. Until at least half-way down the contraction with the larger area ratio, the rapid-distortion calculations considering only the streamwise acceleration were found to be reasonably successful in predicting the turbulent intensities. For the smaller-area-ratio contraction, corrections for the 'natural development' of the shear flow become important nearly everywhere. Refs.

Original language | English (US) |
---|---|

Pages (from-to) | 187-213 |

Number of pages | 27 |

Journal | Journal of Fluid Mechanics |

Volume | 154 |

State | Published - May 1985 |

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### ASJC Scopus subject areas

- Computational Mechanics
- Mechanics of Materials
- Physics and Astronomy(all)
- Condensed Matter Physics

### Cite this

**EFFECT OF CONTRACTION ON A HOMOGENEOUS TURBULENT SHEAR FLOW.** / Sreenivasan, K. R.

Research output: Contribution to journal › Article

*Journal of Fluid Mechanics*, vol. 154, pp. 187-213.

}

TY - JOUR

T1 - EFFECT OF CONTRACTION ON A HOMOGENEOUS TURBULENT SHEAR FLOW.

AU - Sreenivasan, K. R.

PY - 1985/5

Y1 - 1985/5

N2 - A homogeneous turbulent shear flow in its asymptotic stage of development was subjected to an additional (longitudinal) strain by passing the flow through gradual contraction in the direction perpendicular to that of the mean shear. Two contractions, of area ratio 1. 4 and 2. 6, were used. The mean velocity distributions agree quite well with calculations based on the (inviscid) Bernoulli equation. Until at least half-way down the contraction with the larger area ratio, the rapid-distortion calculations considering only the streamwise acceleration were found to be reasonably successful in predicting the turbulent intensities. For the smaller-area-ratio contraction, corrections for the 'natural development' of the shear flow become important nearly everywhere. Refs.

AB - A homogeneous turbulent shear flow in its asymptotic stage of development was subjected to an additional (longitudinal) strain by passing the flow through gradual contraction in the direction perpendicular to that of the mean shear. Two contractions, of area ratio 1. 4 and 2. 6, were used. The mean velocity distributions agree quite well with calculations based on the (inviscid) Bernoulli equation. Until at least half-way down the contraction with the larger area ratio, the rapid-distortion calculations considering only the streamwise acceleration were found to be reasonably successful in predicting the turbulent intensities. For the smaller-area-ratio contraction, corrections for the 'natural development' of the shear flow become important nearly everywhere. Refs.

UR - http://www.scopus.com/inward/record.url?scp=0021791365&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0021791365&partnerID=8YFLogxK

M3 - Article

VL - 154

SP - 187

EP - 213

JO - Journal of Fluid Mechanics

JF - Journal of Fluid Mechanics

SN - 0022-1120

ER -