1981
DOI: 10.1017/s002211208100061x
|View full text |Cite
|
Sign up to set email alerts
|

Abstract: Turbulent spots evolving in a laminar boundary layer on a nominally zero pressure gradient flat plate are investigated. The plate is towed through an 18 m water channel, using a carriage that rides on a continuously replenished oil film giving a vibrationless tow. Turbulent spots are initiated using a solenoid valve that ejects a small amount of fluid through a minute hole on the working surface. A novel visualization technique that utilizes fluorescent dye excited by a sheet of laser light is employed. Some n… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
3
1
1

Citation Types

9
81
0

Year Published

1985
1985
2013
2013

Publication Types

Select...
4
4
1

Relationship

0
9

Authors

Journals

citations
Cited by 201 publications
(90 citation statements)
references
References 11 publications
9
81
0
Order By: Relevance
“…We note that the observations made by Carstensen, Sumer, and Fredsøe 1 were actually analogous to those made for steady boundary layers (e.g. Gad-el-Hak, Blackwelder, and Riley; 4 Perry, Lim, and Teh; 5 Chambers and Thomas; 6 Browand and Plocher; 7 Seifert and Wygnanski; 8 and Matsubara and Alfredsson 9 ).…”
Section: Introductionsupporting
confidence: 74%
“…We note that the observations made by Carstensen, Sumer, and Fredsøe 1 were actually analogous to those made for steady boundary layers (e.g. Gad-el-Hak, Blackwelder, and Riley; 4 Perry, Lim, and Teh; 5 Chambers and Thomas; 6 Browand and Plocher; 7 Seifert and Wygnanski; 8 and Matsubara and Alfredsson 9 ).…”
Section: Introductionsupporting
confidence: 74%
“…The blowing trip is applied for a short duration of 8 non-dimensional time units (δ * in /u ∞ ) by specifying the vertical velocity at the plate surface as v inj = Au ∞ ; the amplitude A of the disturbance is chosen such that a spot can be efficiently triggered and studied within the present computational domain. The blowing trip used here has previously been used in experiments such as Perry, Lim & Teh (1981) and Gad-el-Hak et al (1981). Fully developed spots are believed to be independent of the method of initiation (Singer 1996).…”
Section: Simulation Detailsmentioning
confidence: 99%
“…Further growth, interaction and breakdown of these substructures finally evolves the flow field into a mature turbulent spot. Plan and side views of (Cantwell et al 1978;Gad-el-Hak et al 1981).…”
Section: Effect Of Mach Numbermentioning
confidence: 99%
“…Laser-Doppler velocity measurements of Cantwell et al 8 showed strong entrainment of undisturbed fluid along the outer part of the spot tail and also near the front overhang, while flow visualizations showed longitudinal structures in the sublayer. Spots are generally assumed to grow in the lateral direction due to a destabilization of the surrounding laminar boundary layer ͑Gad-El-Hak et al 9 ͒.…”
Section: Introductionmentioning
confidence: 99%