Flow field alteration due to permeability and subcanopy flow for emergent vegetation

Vasileios Kitsikoudis; Oral Yagci; V. S.Ozgur Kirca; Dorukhan Kellecioglu

Flow field alteration due to permeability and subcanopy flow for emergent vegetation

Vasileios Kitsikoudis, Oral Yagci, V. S.Ozgur Kirca, Dorukhan Kellecioglu

Department of Civil Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

3 Citations (Scopus)

Abstract

The present experimental study investigates the effects of emergent tree-like vegetation on the flow field. Two major flow alteration mechanisms are noted, namely the flow through a porous element and the subcanopy flow. Firstly, a simple artificial porous element simulated the vegetation to deduce the pertinent physical mechanisms. This element comprised a hexagonal array of circular cylinders, which was placed on top of a wooden rod to simulate the tree-like canopy or directly to the flume bottom to simulate reedy vegetation. The results show that the porosity in the "reedy vegetation" leads to a long flow recovery distance, mainly due to the steady wake region, which inhibits the lateral mixing. However, the subcanopy flow in tree-like vegetation disrupts this effect by enhancing the vertical mixing. Subsequently, the flow through a natural tree-like plant (Cupressus Macrocarpa species) is assessed with the aid of the previous findings.

Original language	English
Title of host publication	Proceedings of the 26th International Ocean and Polar Engineering Conference, ISOPE 2016
Editors	Alan M. Wang, Jin S. Chung, Ted Kokkinis, Michael Muskulus
Publisher	International Society of Offshore and Polar Engineers
Pages	1421-1427
Number of pages	7
ISBN (Electronic)	9781880653883
Publication status	Published - 2016
Event	26th Annual International Ocean and Polar Engineering Conference, ISOPE 2016 - Rhodes, Greece Duration: 26 Jun 2016 → 1 Jul 2016

Publication series

Name	Proceedings of the International Offshore and Polar Engineering Conference
Volume	2016-January
ISSN (Print)	1098-6189
ISSN (Electronic)	1555-1792

Conference

Conference	26th Annual International Ocean and Polar Engineering Conference, ISOPE 2016
Country/Territory	Greece
City	Rhodes
Period	26/06/16 → 1/07/16

Bibliographical note

Publisher Copyright:
© Copyright 2016 by the International Society of Offshore and Polar Engineers (ISOPE).

Keywords

Environmental fluid mechanics
Flow-vegetation interaction
Turbulence

Cite this

Kitsikoudis, V., Yagci, O., Kirca, V. S. O., & Kellecioglu, D. (2016). Flow field alteration due to permeability and subcanopy flow for emergent vegetation. In A. M. Wang, J. S. Chung, T. Kokkinis, & M. Muskulus (Eds.), Proceedings of the 26th International Ocean and Polar Engineering Conference, ISOPE 2016 (pp. 1421-1427). (Proceedings of the International Offshore and Polar Engineering Conference; Vol. 2016-January). International Society of Offshore and Polar Engineers.

Kitsikoudis, Vasileios ; Yagci, Oral ; Kirca, V. S.Ozgur et al. / Flow field alteration due to permeability and subcanopy flow for emergent vegetation. Proceedings of the 26th International Ocean and Polar Engineering Conference, ISOPE 2016. editor / Alan M. Wang ; Jin S. Chung ; Ted Kokkinis ; Michael Muskulus. International Society of Offshore and Polar Engineers, 2016. pp. 1421-1427 (Proceedings of the International Offshore and Polar Engineering Conference).

@inproceedings{bc40c18290514cebb0f240d1c8679c7f,

title = "Flow field alteration due to permeability and subcanopy flow for emergent vegetation",

abstract = "The present experimental study investigates the effects of emergent tree-like vegetation on the flow field. Two major flow alteration mechanisms are noted, namely the flow through a porous element and the subcanopy flow. Firstly, a simple artificial porous element simulated the vegetation to deduce the pertinent physical mechanisms. This element comprised a hexagonal array of circular cylinders, which was placed on top of a wooden rod to simulate the tree-like canopy or directly to the flume bottom to simulate reedy vegetation. The results show that the porosity in the {"}reedy vegetation{"} leads to a long flow recovery distance, mainly due to the steady wake region, which inhibits the lateral mixing. However, the subcanopy flow in tree-like vegetation disrupts this effect by enhancing the vertical mixing. Subsequently, the flow through a natural tree-like plant (Cupressus Macrocarpa species) is assessed with the aid of the previous findings.",

keywords = "Environmental fluid mechanics, Flow-vegetation interaction, Turbulence",

author = "Vasileios Kitsikoudis and Oral Yagci and Kirca, {V. S.Ozgur} and Dorukhan Kellecioglu",

note = "Publisher Copyright: {\textcopyright} Copyright 2016 by the International Society of Offshore and Polar Engineers (ISOPE).; 26th Annual International Ocean and Polar Engineering Conference, ISOPE 2016 ; Conference date: 26-06-2016 Through 01-07-2016",

year = "2016",

language = "English",

series = "Proceedings of the International Offshore and Polar Engineering Conference",

publisher = "International Society of Offshore and Polar Engineers",

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Kitsikoudis, V, Yagci, O, Kirca, VSO & Kellecioglu, D 2016, Flow field alteration due to permeability and subcanopy flow for emergent vegetation. in AM Wang, JS Chung, T Kokkinis & M Muskulus (eds), Proceedings of the 26th International Ocean and Polar Engineering Conference, ISOPE 2016. Proceedings of the International Offshore and Polar Engineering Conference, vol. 2016-January, International Society of Offshore and Polar Engineers, pp. 1421-1427, 26th Annual International Ocean and Polar Engineering Conference, ISOPE 2016, Rhodes, Greece, 26/06/16.

Flow field alteration due to permeability and subcanopy flow for emergent vegetation. / Kitsikoudis, Vasileios; Yagci, Oral; Kirca, V. S.Ozgur et al.
Proceedings of the 26th International Ocean and Polar Engineering Conference, ISOPE 2016. ed. / Alan M. Wang; Jin S. Chung; Ted Kokkinis; Michael Muskulus. International Society of Offshore and Polar Engineers, 2016. p. 1421-1427 (Proceedings of the International Offshore and Polar Engineering Conference; Vol. 2016-January).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Flow field alteration due to permeability and subcanopy flow for emergent vegetation

AU - Kitsikoudis, Vasileios

AU - Yagci, Oral

AU - Kirca, V. S.Ozgur

AU - Kellecioglu, Dorukhan

PY - 2016

Y1 - 2016

N2 - The present experimental study investigates the effects of emergent tree-like vegetation on the flow field. Two major flow alteration mechanisms are noted, namely the flow through a porous element and the subcanopy flow. Firstly, a simple artificial porous element simulated the vegetation to deduce the pertinent physical mechanisms. This element comprised a hexagonal array of circular cylinders, which was placed on top of a wooden rod to simulate the tree-like canopy or directly to the flume bottom to simulate reedy vegetation. The results show that the porosity in the "reedy vegetation" leads to a long flow recovery distance, mainly due to the steady wake region, which inhibits the lateral mixing. However, the subcanopy flow in tree-like vegetation disrupts this effect by enhancing the vertical mixing. Subsequently, the flow through a natural tree-like plant (Cupressus Macrocarpa species) is assessed with the aid of the previous findings.

AB - The present experimental study investigates the effects of emergent tree-like vegetation on the flow field. Two major flow alteration mechanisms are noted, namely the flow through a porous element and the subcanopy flow. Firstly, a simple artificial porous element simulated the vegetation to deduce the pertinent physical mechanisms. This element comprised a hexagonal array of circular cylinders, which was placed on top of a wooden rod to simulate the tree-like canopy or directly to the flume bottom to simulate reedy vegetation. The results show that the porosity in the "reedy vegetation" leads to a long flow recovery distance, mainly due to the steady wake region, which inhibits the lateral mixing. However, the subcanopy flow in tree-like vegetation disrupts this effect by enhancing the vertical mixing. Subsequently, the flow through a natural tree-like plant (Cupressus Macrocarpa species) is assessed with the aid of the previous findings.

KW - Environmental fluid mechanics

KW - Flow-vegetation interaction

KW - Turbulence

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M3 - Conference contribution

AN - SCOPUS:84987903133

T3 - Proceedings of the International Offshore and Polar Engineering Conference

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EP - 1427

BT - Proceedings of the 26th International Ocean and Polar Engineering Conference, ISOPE 2016

A2 - Wang, Alan M.

A2 - Chung, Jin S.

A2 - Kokkinis, Ted

A2 - Muskulus, Michael

PB - International Society of Offshore and Polar Engineers

T2 - 26th Annual International Ocean and Polar Engineering Conference, ISOPE 2016

Y2 - 26 June 2016 through 1 July 2016

ER -

Kitsikoudis V, Yagci O, Kirca VSO, Kellecioglu D. Flow field alteration due to permeability and subcanopy flow for emergent vegetation. In Wang AM, Chung JS, Kokkinis T, Muskulus M, editors, Proceedings of the 26th International Ocean and Polar Engineering Conference, ISOPE 2016. International Society of Offshore and Polar Engineers. 2016. p. 1421-1427. (Proceedings of the International Offshore and Polar Engineering Conference).

Flow field alteration due to permeability and subcanopy flow for emergent vegetation

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Bibliographical note

Keywords

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Cite this