Hydrodynamic forces on a horizontal cylinder resting on a sand bed under waves and currents

Peter Stansby; Paul Starr

Hydrodynamic forces on a horizontal cylinder resting on a sand bed under waves and currents

Research output: Chapter in Book/Conference proceeding › Conference contribution

Abstract

Experiments have been made in a laboratory flume to investigate the interaction of a mobile sand bed with a cylinder under currents and waves. The cylinder is free to move vertically under its own weight. Some general conclusions may be drawn from the results although some details could not be reproduced from one run to another with the same input conditions. The cylinder always caused incipient bed motion and ripple formation to occur at lower Shields numbers. The cylinder axis always dropped and forces were always reduced, sometimes substantially, as a result of bed motion. Hydrodynamic force was measured through the surface pressures by a novel device.

Original language	English
Title of host publication	Proceedings of the First International Offshore and Polar Engineering Conference\|Proc First Int Offshore Polar Eng Conf
Editors	Jin S. Chung, Birger J. Natvig, Kenji Kaneko, Augustin J. Ferrante
Place of Publication	Golden, CO, United States
Publisher	International Society of Offshore and Polar Engineers
Pages	158-163
Number of pages	5
ISBN (Print)	0962610488
Publication status	Published - 1991
Event	Proceedings of the First International Offshore and Polar Engineering Conference - Edinburgh, Scotl Duration: 1 Jul 1991 → …

Conference

Conference	Proceedings of the First International Offshore and Polar Engineering Conference
City	Edinburgh, Scotl
Period	1/07/91 → …

Cite this

Stansby, P., & Starr, P. (1991). Hydrodynamic forces on a horizontal cylinder resting on a sand bed under waves and currents. In J. S. Chung, B. J. Natvig, K. Kaneko, & A. J. Ferrante (Eds.), Proceedings of the First International Offshore and Polar Engineering Conference|Proc First Int Offshore Polar Eng Conf (pp. 158-163). International Society of Offshore and Polar Engineers.

Stansby, Peter ; Starr, Paul. / Hydrodynamic forces on a horizontal cylinder resting on a sand bed under waves and currents. Proceedings of the First International Offshore and Polar Engineering Conference|Proc First Int Offshore Polar Eng Conf. editor / Jin S. Chung ; Birger J. Natvig ; Kenji Kaneko ; Augustin J. Ferrante. Golden, CO, United States : International Society of Offshore and Polar Engineers, 1991. pp. 158-163

@inproceedings{fcdd7eb02f634944821e37b391bfecdd,

title = "Hydrodynamic forces on a horizontal cylinder resting on a sand bed under waves and currents",

abstract = "Experiments have been made in a laboratory flume to investigate the interaction of a mobile sand bed with a cylinder under currents and waves. The cylinder is free to move vertically under its own weight. Some general conclusions may be drawn from the results although some details could not be reproduced from one run to another with the same input conditions. The cylinder always caused incipient bed motion and ripple formation to occur at lower Shields numbers. The cylinder axis always dropped and forces were always reduced, sometimes substantially, as a result of bed motion. Hydrodynamic force was measured through the surface pressures by a novel device.",

author = "Peter Stansby and Paul Starr",

year = "1991",

language = "English",

isbn = "0962610488",

pages = "158--163",

editor = "Chung, {Jin S.} and Natvig, {Birger J.} and Kenji Kaneko and Ferrante, {Augustin J.}",

booktitle = "Proceedings of the First International Offshore and Polar Engineering Conference|Proc First Int Offshore Polar Eng Conf",

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

address = "United States",

note = "Proceedings of the First International Offshore and Polar Engineering Conference ; Conference date: 01-07-1991",

}

Stansby, P & Starr, P 1991, Hydrodynamic forces on a horizontal cylinder resting on a sand bed under waves and currents. in JS Chung, BJ Natvig, K Kaneko & AJ Ferrante (eds), Proceedings of the First International Offshore and Polar Engineering Conference|Proc First Int Offshore Polar Eng Conf. International Society of Offshore and Polar Engineers, Golden, CO, United States, pp. 158-163, Proceedings of the First International Offshore and Polar Engineering Conference, Edinburgh, Scotl, 1/07/91.

Hydrodynamic forces on a horizontal cylinder resting on a sand bed under waves and currents. / Stansby, Peter; Starr, Paul.
Proceedings of the First International Offshore and Polar Engineering Conference|Proc First Int Offshore Polar Eng Conf. ed. / Jin S. Chung; Birger J. Natvig; Kenji Kaneko; Augustin J. Ferrante. Golden, CO, United States: International Society of Offshore and Polar Engineers, 1991. p. 158-163.

Research output: Chapter in Book/Conference proceeding › Conference contribution

TY - GEN

T1 - Hydrodynamic forces on a horizontal cylinder resting on a sand bed under waves and currents

AU - Stansby, Peter

AU - Starr, Paul

PY - 1991

Y1 - 1991

N2 - Experiments have been made in a laboratory flume to investigate the interaction of a mobile sand bed with a cylinder under currents and waves. The cylinder is free to move vertically under its own weight. Some general conclusions may be drawn from the results although some details could not be reproduced from one run to another with the same input conditions. The cylinder always caused incipient bed motion and ripple formation to occur at lower Shields numbers. The cylinder axis always dropped and forces were always reduced, sometimes substantially, as a result of bed motion. Hydrodynamic force was measured through the surface pressures by a novel device.

AB - Experiments have been made in a laboratory flume to investigate the interaction of a mobile sand bed with a cylinder under currents and waves. The cylinder is free to move vertically under its own weight. Some general conclusions may be drawn from the results although some details could not be reproduced from one run to another with the same input conditions. The cylinder always caused incipient bed motion and ripple formation to occur at lower Shields numbers. The cylinder axis always dropped and forces were always reduced, sometimes substantially, as a result of bed motion. Hydrodynamic force was measured through the surface pressures by a novel device.

M3 - Conference contribution

SN - 0962610488

SP - 158

EP - 163

BT - Proceedings of the First International Offshore and Polar Engineering Conference|Proc First Int Offshore Polar Eng Conf

A2 - Chung, Jin S.

A2 - Natvig, Birger J.

A2 - Kaneko, Kenji

A2 - Ferrante, Augustin J.

PB - International Society of Offshore and Polar Engineers

CY - Golden, CO, United States

T2 - Proceedings of the First International Offshore and Polar Engineering Conference

Y2 - 1 July 1991

ER -

Stansby P, Starr P. Hydrodynamic forces on a horizontal cylinder resting on a sand bed under waves and currents. In Chung JS, Natvig BJ, Kaneko K, Ferrante AJ, editors, Proceedings of the First International Offshore and Polar Engineering Conference|Proc First Int Offshore Polar Eng Conf. Golden, CO, United States: International Society of Offshore and Polar Engineers. 1991. p. 158-163

Hydrodynamic forces on a horizontal cylinder resting on a sand bed under waves and currents

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