Numerical Solutions For Determining Wave-Induced Pressure Distributions Around Buried Pipelines

Lai, N. W.; Dominguez, Richard Frank; Dunlap, Wayne A.

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Numerical Solutions For Determining Wave-Induced Pressure Distributions Around Buried Pipelines

1974
By Lai, N. W. ; Dominguez, Richard Frank ; Dunlap, Wayne A.
Series: TAMU-SG ; 75-205

[PDF-1.54 MB]

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Personal Author:

Lai, N. W. ; Dominguez, Richard Frank ; Dunlap, Wayne A.

Lai, N. W. ; Dominguez, Richard Frank ; Dunlap, Wayne A. Less -
Corporate Authors:

Texas A & M University, Sea Grant College Program, ; National Sea Grant Program (U.S.)

Texas A & M University, Sea Grant College Program, ; National Sea Grant Program (U.S.) Less -
NOAA Program & Office:

Sea Grant ; OAR (Oceanic and Atmospheric Research)

Sea Grant ; OAR (Oceanic and Atmospheric Research) Less -
Sea Grant Program:

TAMU (Texas Sea Grant) ; NSGO/NSGLC (National Sea Grant)

TAMU (Texas Sea Grant) ; NSGO/NSGLC (National Sea Grant) Less -
Description:

Numerical models using both the finite difference and finite element technique are developed to simulate the interaction of a two-dimensional pipe-soil-wave system. The wave-induced pressure distribution in the soil region without an embedded pipe is first studied and solutions validated by comparing with existing analytical and experimental results. Numerical models are then used to solve the dynamic pressure distribution around buried pipes. Results are obtained for both a square pipe and a circular pipe and comparisons are made for different cases of input wave and soil parameters. It is found that the embedded pipe causes an increase of pressure at the top region of the pipe and a decrease at the bottom. Pressure changes predicted by the finite difference approach are slightly different from the finite element results. Parameter studies are conducted to determine the influence of some of the significant factors on the pressure distribution pattern around the buried pipe.
Keywords:

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Hydrodynamics Mathematical Models Underwater Pipelines
Series:

TAMU-SG ; 75-205
Document Type:

Miscellaneous
Funding:

Funding: NOAA Office of Sea Grants; grant number: 04-3-158-18;
Rights Information:

Public Domain
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Library
Main Document Checksum:

[+]

urn:sha256:f94cdc1f137f369eb9cff54cb2048f856e42ead288b31ae089bf1426ef500a97
Download URL:

https://repository.library.noaa.gov/view/noaa/12767/noaa_12767_DS1.pdf
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Numerical Solutions For Determining Wave-Induced Pressure Distributions Around Buried Pipelines

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