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Title: Non-linear random wave kinematics models verified against measurements in steep waves

Abstract

Measurements from an earlier experiment on random wave kinematics are compared to four different numerical wave models. The models are: Second-order random wave model, Hybrid wave model, Wheeler stretching, and a modified Wheeler stretching method. Wave elevation, horizontal fluid particle velocities and corresponding accelerations in steep individual waves are included in the comparison. Spatial velocity profiles, as well as time history profiles showing the kinematics at certain fixed vertical levels, are shown. It is found that the second order and the hybrid wave models generally predict the measured kinematics (velocities as well as accelerations) reasonably well. The Wheeler stretching method predicts velocities quite well at the free surface of crest peaks, while it underpredicts the velocities further below in the wave zone fluid. With the modified Wheeler stretching procedure this is improved.

Authors:
 [1];  [2]
  1. Norwegian Marine Technology Research Inst. A/S, Trondheim (Norway)
  2. Den Norske Stats Olijeselskap A.S., Stavanger (Norway)
Publication Date:
OSTI Identifier:
449646
Report Number(s):
CONF-9606279-
ISBN 0-7918-1490-4; TRN: IM9714%%203
Resource Type:
Book
Resource Relation:
Conference: 14. international conference on offshore mechanics arctic engineering (OMAE), Florence (Italy), 16-20 Jun 1996; Other Information: PBD: 1996; Related Information: Is Part Of Proceedings of the 15. international conference on offshore mechanics and arctic engineering -- OMAE 1996. Volume 1, Part A: Offshore technology; Chakrabarti, S.K. [ed.] [Chicago Bridge and Iron Technical Services Co., Plainfield, IL (United States)]; Pontes, M.T. [ed.] [Inst. Nacional de Engenharia e Tecnologia Industrial, Lisbon (Portugal)]; Maeda, Hisaaki [ed.] [Univ. of Tokyo (Japan)]; Falzarano, J. [ed.] [Univ. of New Orleans, LA (United States)]; Schofield, P. [ed.] [W.S. Atkins, Surrey (United Kingdom)]; Morrison, D. [ed.] [Shell E and P Technology Co., Houston, TX (United States)]; PB: 530 p.
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; OFFSHORE PLATFORMS; WAVE FORCES; FLOW MODELS; WATER WAVES; COMPARATIVE EVALUATIONS; HYDRODYNAMICS; THEORETICAL DATA; EXPERIMENTAL DATA

Citation Formats

Stansberg, C T, and Gudmestad, O T. Non-linear random wave kinematics models verified against measurements in steep waves. United States: N. p., 1996. Web.
Stansberg, C T, & Gudmestad, O T. Non-linear random wave kinematics models verified against measurements in steep waves. United States.
Stansberg, C T, and Gudmestad, O T. 1996. "Non-linear random wave kinematics models verified against measurements in steep waves". United States.
@article{osti_449646,
title = {Non-linear random wave kinematics models verified against measurements in steep waves},
author = {Stansberg, C T and Gudmestad, O T},
abstractNote = {Measurements from an earlier experiment on random wave kinematics are compared to four different numerical wave models. The models are: Second-order random wave model, Hybrid wave model, Wheeler stretching, and a modified Wheeler stretching method. Wave elevation, horizontal fluid particle velocities and corresponding accelerations in steep individual waves are included in the comparison. Spatial velocity profiles, as well as time history profiles showing the kinematics at certain fixed vertical levels, are shown. It is found that the second order and the hybrid wave models generally predict the measured kinematics (velocities as well as accelerations) reasonably well. The Wheeler stretching method predicts velocities quite well at the free surface of crest peaks, while it underpredicts the velocities further below in the wave zone fluid. With the modified Wheeler stretching procedure this is improved.},
doi = {},
url = {https://www.osti.gov/biblio/449646}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Dec 31 00:00:00 EST 1996},
month = {Tue Dec 31 00:00:00 EST 1996}
}

Book:
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