Turbulent spots in plane Poiseuille flow–flow visualization
- 1 April 1986
- journal article
- letter
- Published by AIP Publishing in Physics of Fluids
- Vol. 29 (4), 1328-1331
- https://doi.org/10.1063/1.865884
Abstract
The structure and spreading of turbulent spots in plane Poiseuille flow were studied through flow visualization, in the Reynolds number range 1100 to 2200 (based on centerline velocity and channel half‐height). The spot spreading half‐angle varied from 6° for the lowest Re to 12° for the highest Re. The propagation velocity of the rear laminar–turbulent interface was slightly above 50% of the centerline velocity. Spotsplitting, as reported in earlier studies, seems to occur only at low Re.Keywords
This publication has 7 references indexed in Scilit:
- On flow visualization using reflective flakesJournal of Fluid Mechanics, 1985
- An Experimental Study of the Structure and Spreading of Turbulent SpotsPublished by Springer Nature ,1985
- A flow-visualization study of transition in plane Poiseuille flowJournal of Fluid Mechanics, 1982
- On a Tollmien-Schlichting wave packet produced by a turbulent spotJournal of Fluid Mechanics, 1979
- An experimental investigation of the stability of plane Poiseuille flowJournal of Fluid Mechanics, 1975
- Accurate solution of the Orr–Sommerfeld stability equationJournal of Fluid Mechanics, 1971
- Propagation of Turbulence from an Instantaneous Point DisturbanceJournal of the Aeronautical Sciences, 1954