Hydrodynamic forces on partly buried tandem, twin pipelines in current

Sevket Cokgor; Ilhan Avci

doi:10.1016/S0029-8018(00)00051-2

Hydrodynamic forces on partly buried tandem, twin pipelines in current

Sevket Cokgor^*, Ilhan Avci

^*Corresponding author for this work

Department of Civil Engineering

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

This study extends the investigations of the forces on a cylinder, laid on, or partly buried in the bed with a parallel twin dummy cylinder nearby and without it, and were determined by measuring the pressure distribution on the cylinder in the case of a steady current. The pressure distribution around the cylinder was measured by using pressure transducers. The forces on the cylinder were calculated by the integration of the measured pressures on the surface of the cylinder. Force coefficients were obtained for the ranges of Re=0.8x10⁴-1.5x10⁴ for the burial depth to diameter ratio=0:0.7. The distance between axis of the measurement and dummy cylinders to diameter ratio (x/D) was 2, 1.5 and 1. The dummy cylinder was replaced downstream and upstream of the measurement cylinder.

Original language	English
Pages (from-to)	1349-1360
Number of pages	12
Journal	Ocean Engineering
Volume	28
Issue number	10
DOIs	https://doi.org/10.1016/S0029-8018(00)00051-2
Publication status	Published - 4 May 2001

Funding

This study was supported by the Scientific and Technical Research Council of Turkey (TUBITAK), Project No. INTAG 816. The authors thank Professor Dr B.M. Sumer for his contribution to the study.

Funders	Funder number
TUBITAK
Türkiye Bilimsel ve Teknolojik Araştirma Kurumu

Keywords

Hydrodynamic forces
Pressure distribution
Steady current
Tandem twin cylinders

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10.1016/S0029-8018(00)00051-2

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abstract = "This study extends the investigations of the forces on a cylinder, laid on, or partly buried in the bed with a parallel twin dummy cylinder nearby and without it, and were determined by measuring the pressure distribution on the cylinder in the case of a steady current. The pressure distribution around the cylinder was measured by using pressure transducers. The forces on the cylinder were calculated by the integration of the measured pressures on the surface of the cylinder. Force coefficients were obtained for the ranges of Re=0.8x104-1.5x104 for the burial depth to diameter ratio=0:0.7. The distance between axis of the measurement and dummy cylinders to diameter ratio (x/D) was 2, 1.5 and 1. The dummy cylinder was replaced downstream and upstream of the measurement cylinder.",

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AU - Avci, Ilhan

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AB - This study extends the investigations of the forces on a cylinder, laid on, or partly buried in the bed with a parallel twin dummy cylinder nearby and without it, and were determined by measuring the pressure distribution on the cylinder in the case of a steady current. The pressure distribution around the cylinder was measured by using pressure transducers. The forces on the cylinder were calculated by the integration of the measured pressures on the surface of the cylinder. Force coefficients were obtained for the ranges of Re=0.8x104-1.5x104 for the burial depth to diameter ratio=0:0.7. The distance between axis of the measurement and dummy cylinders to diameter ratio (x/D) was 2, 1.5 and 1. The dummy cylinder was replaced downstream and upstream of the measurement cylinder.

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Hydrodynamic forces on partly buried tandem, twin pipelines in current

Abstract

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Keywords

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