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Editorial: Analysis of Extreme Waves 社论:极端波浪分析
The Open Ocean Engineering Journal Pub Date : 2011-03-30 DOI: 10.2174/1874835X01104010001
T. Soukissian
{"title":"Editorial: Analysis of Extreme Waves","authors":"T. Soukissian","doi":"10.2174/1874835X01104010001","DOIUrl":"https://doi.org/10.2174/1874835X01104010001","url":null,"abstract":"","PeriodicalId":206173,"journal":{"name":"The Open Ocean Engineering Journal","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123620270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Extreme and rogue waves in directional wave fields 定向波场中的极端和异常波
The Open Ocean Engineering Journal Pub Date : 2011-03-30 DOI: 10.2174/1874835X01104010024
A. Toffoli, E. Bitner-Gregersen
{"title":"Extreme and rogue waves in directional wave fields","authors":"A. Toffoli, E. Bitner-Gregersen","doi":"10.2174/1874835X01104010024","DOIUrl":"https://doi.org/10.2174/1874835X01104010024","url":null,"abstract":"It is well established that modulational instability enhances the probability of occurrence for rogue waves if the wave field is long crested, narrow banded and sufficiently steep. As a result, a substantial deviation from commonly used second order theory-based distributions can be expected. However the spreading of the wave energy over a number of directional components can notably reduce the effect of modulational instability. In order to achieve a better understanding on the influence of wave directionality and its implication for design work, numerical simulations based on the truncated potential Euler equations were used. Results show the existence of a transition region between strongly and weakly non-Gaussian statistics as short crestedness increases.","PeriodicalId":206173,"journal":{"name":"The Open Ocean Engineering Journal","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125862140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 26
Occurrence and Breaking of Rogue Waves in Deep Waters: A Stochastic Approach Revisit 深水异常浪的发生与破碎:随机方法再访
The Open Ocean Engineering Journal Pub Date : 2011-03-30 DOI: 10.2174/1874835X01104010015
I. Papadimitrakis, F. Dias
{"title":"Occurrence and Breaking of Rogue Waves in Deep Waters: A Stochastic Approach Revisit","authors":"I. Papadimitrakis, F. Dias","doi":"10.2174/1874835X01104010015","DOIUrl":"https://doi.org/10.2174/1874835X01104010015","url":null,"abstract":"The occurrence of rogue waves in deep sea waters, and their breaking, is examined with the aid of a pdf model of joint amplitudes and frequencies. New wave breaking considerations allow kinematic, dynamic and maximum average slope concepts to be unified in a single breaking criterion, which allows a more accurate determination of the limiting am- plitudes that rogue waves can reach, including the influence of non-linearity of the wave field and the premature wave breaking concept. The probability of rogue wave occurrence does not significantly depend on the sea spectrum bandwidth. The breaking probability of rogue waves increases with the inverse wave age, but its dependence on the latter parameter weakens, as the limiting crest height criterion is stiffened. The right variation of sea surface kurtosis, and of the Benjamin Feir Index, with the (inverse) wave age and their lower than unity values reconfirms their relation to the rogue wave oc- currence.","PeriodicalId":206173,"journal":{"name":"The Open Ocean Engineering Journal","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132335901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Bivariate Analysis of Extreme Wave and Storm Surge Events. Determining the Failure Area of Structures 极端波浪和风暴潮事件的双变量分析。结构破坏区域的确定
The Open Ocean Engineering Journal Pub Date : 2011-03-30 DOI: 10.2174/1874835X01104010003
P. Galiatsatou
{"title":"Bivariate Analysis of Extreme Wave and Storm Surge Events. Determining the Failure Area of Structures","authors":"P. Galiatsatou","doi":"10.2174/1874835X01104010003","DOIUrl":"https://doi.org/10.2174/1874835X01104010003","url":null,"abstract":"In the present paper a bivariate process of extreme waves and storm surges at a Dutch station on the North Sea is considered. A bivariate logistic model and a sequential estimation procedure are used to extract joint exceedance probabilities of the two variables. The parameters of the margins of the bivariate distribution are defined by three different methods of estimation: a) the Maximum Likelihood Estimation (MLE) approach, b) a Bayesian procedure with flat prior distributions and c) the L-Moments (LM) estimation procedure. Comparison of the results of the three methods is performed and general conclusions are extracted. An approach to estimate the failure area of a particular structure under extreme sea conditions is presented, using the margins resulting from the three different estimation methods.","PeriodicalId":206173,"journal":{"name":"The Open Ocean Engineering Journal","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130225701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Transport Reversal Due to Typhoon Krosa in the Taiwan Strait 台风罗莎在台湾海峡引起的交通逆转
The Open Ocean Engineering Journal Pub Date : 2010-12-30 DOI: 10.2174/1874835X01003010143
Yu-Hsien Lin, M. Fang, H. Hwung
{"title":"Transport Reversal Due to Typhoon Krosa in the Taiwan Strait","authors":"Yu-Hsien Lin, M. Fang, H. Hwung","doi":"10.2174/1874835X01003010143","DOIUrl":"https://doi.org/10.2174/1874835X01003010143","url":null,"abstract":"A comprehensive hydrodynamic model, COMCOT-S, has been aimed at transport reversal in the Taiwan Strait during the period of Typhoon KROSA in 2007. The numerical model is originally based on COMCOT, and a parametric wind model with atmospheric sub-model is imbedded in COMCOT-S for simulating the typhoon-induced currents. The transport characteristics through the Taiwan Strait under the influence of Typhoon KROSA were analyzed using both field observations and numerical simulations during the period from 05 October to 08 October 2007 (GMT+8). The re- sults show that typhoon-induced currents did not fully response to the cease of the northward winds after the flow rever- sal, representing the influence of other dynamical forces on the flow orientation in the Taiwan Strait. Typhoon-induced wind shear stress and the water level gradient are found to be the direct driving forces of the southward transport events, whereas the atmospheric pressure gradient is dominant after the southward transport peak. By comparing with six numeri- cal experiments, the result of finer grid resolution is in good agreement with the observed current data at THL1 station near Mailiao Harbor. According to the transport simulation of numerical experiments, the Coriolis force is found to play a dominant role in the transport reversal as well, especially in the north Taiwan Strait. Besides, it is more relevant in the Penghu Channel than in the Taiwan Banks that the Coriolis force makes a negative contribution to the southward transport events. Finally, it's verified that the generation of an anticyclonic eddy near the Changyun Rise would not be reached without the contribution of the Coriolis force to the northward transport in the Penghu Channel.","PeriodicalId":206173,"journal":{"name":"The Open Ocean Engineering Journal","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115859959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 10
Oil Spills in Coastal Zones: Predicting Slick Transport and Weathering Processes 沿海地区的石油泄漏:预测浮油运输和风化过程
The Open Ocean Engineering Journal Pub Date : 2010-11-30 DOI: 10.2174/1874835X01003010129
J. A. D. Carmo, J. Pinho, J. Vieira
{"title":"Oil Spills in Coastal Zones: Predicting Slick Transport and Weathering Processes","authors":"J. A. D. Carmo, J. Pinho, J. Vieira","doi":"10.2174/1874835X01003010129","DOIUrl":"https://doi.org/10.2174/1874835X01003010129","url":null,"abstract":"This paper presents some considerations about environmental consequences of the spills and also about oil spill detection and control. Afterwards, it presents a computational structure that has been developed to forecast the time-space evolution of oil spills in marine environments. This structure was developed based on widely used mathematical formula- tions for oil spreading and weathering processes. It uses depth-averaged currents obtained from a two-dimensional and/or a quasi-three-dimensional hydrodynamic model, and net wave velocities obtained analytically. A Lagrangian transport model or, alternatively, a Eulerian transport model is used to predict the oil slick transport and spread. General character- istics of the computational structure and the results of its application to two real case studies - the \"Cercal\" accident on October 1994, and the \"New World\" tanker accident on December 1994 - are presented. Comparisons of numerical results with measured data are shown and a brief discussion about the computational structure performance is also presented.","PeriodicalId":206173,"journal":{"name":"The Open Ocean Engineering Journal","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128077296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 10
Analysing Estimators in the Alternative Echo Integrator Method 分析替代回波积分器方法中的估计量
The Open Ocean Engineering Journal Pub Date : 2010-10-11 DOI: 10.2174/1874835X01003010116
M. Aksland
{"title":"Analysing Estimators in the Alternative Echo Integrator Method","authors":"M. Aksland","doi":"10.2174/1874835X01003010116","DOIUrl":"https://doi.org/10.2174/1874835X01003010116","url":null,"abstract":"New and existing estimators of the \"Echo Value Constant\" based on split-beam detected and integrated single target echoes in the \"alternative echo integration method\" have been compared by using acoustic data. Two new estima- tors were made to make consideration to the fact that the detected echo strengths of single targets outside the half power angle of the split beam transducer have positive average bias. Another new estimator that was proposed in a previous pa- per of the same author is, however, not of this type, and seems in general to be positively biased. The other new estimators seems to be better with respect to the bias than the old one, but one of them seems to be a bit unstable with significant negative bias in special cases. There may be developed even better, nearly beam independent, estimators of the Echo Value Constant. \"In situ\" single echo Target Strengths, although not used, are computed, and these indicate that the increasing average positive bias with increasing beam angle is not dramatic within the angle of -10 dB transmit beam damping.","PeriodicalId":206173,"journal":{"name":"The Open Ocean Engineering Journal","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126676072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Numerical Simulation of Liquefaction Deformation of Sand Layer around Bucket Foundations under Dynamic Loadings~!2009-05-15~!2009-07-20~!2010-02-02~! 动荷载作用下桶形基础周围砂层液化变形数值模拟
The Open Ocean Engineering Journal Pub Date : 2010-03-05 DOI: 10.2174/1874835X01003020075
Chi Li, Xiaobing Lu, Shuyun Wang
{"title":"Numerical Simulation of Liquefaction Deformation of Sand Layer around Bucket Foundations under Dynamic Loadings~!2009-05-15~!2009-07-20~!2010-02-02~!","authors":"Chi Li, Xiaobing Lu, Shuyun Wang","doi":"10.2174/1874835X01003020075","DOIUrl":"https://doi.org/10.2174/1874835X01003020075","url":null,"abstract":"","PeriodicalId":206173,"journal":{"name":"The Open Ocean Engineering Journal","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124670709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Responses of Saturated Sand Surrounding A Bucket Foundations Under Horizontal Vibration Loading~!2009-07-18~!2009-08-23~!2010-02-02~! 水平振动荷载作用下桶形基础周围饱和砂土的响应
The Open Ocean Engineering Journal Pub Date : 2010-03-05 DOI: 10.2174/1874835X01003020031
Xiaobing Lu, Xuhui Zhang, Zhongming Shi
{"title":"Responses of Saturated Sand Surrounding A Bucket Foundations Under Horizontal Vibration Loading~!2009-07-18~!2009-08-23~!2010-02-02~!","authors":"Xiaobing Lu, Xuhui Zhang, Zhongming Shi","doi":"10.2174/1874835X01003020031","DOIUrl":"https://doi.org/10.2174/1874835X01003020031","url":null,"abstract":"In this paper we investigated the responses of saturated sand under horizontal vibration loading induced by a bucket foundation. It is shown that the saturated sand liquefies gradually since the vibration loading is applied on. The maximum displacement on the surface of sand layer occurs near the loading end and in this zone the sand is compressed and moves upwards. The liquefaction zone is developed from the upper part near the loading side and stopped gradually.","PeriodicalId":206173,"journal":{"name":"The Open Ocean Engineering Journal","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116880644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Stability Evaluation of a Quay Wall of Large Cylinders~!2009-07-15~!2009-08-17~!2010-02-02~! 大型圆柱体码头壁稳定性评价[!]2009-07-15~! !2009-08-17~!
The Open Ocean Engineering Journal Pub Date : 2010-03-05 DOI: 10.2174/1874835X01003020069
Jian-Min Zhang, Jianhong Zhang, Gang Wang, Yang Chen
{"title":"Stability Evaluation of a Quay Wall of Large Cylinders~!2009-07-15~!2009-08-17~!2010-02-02~!","authors":"Jian-Min Zhang, Jianhong Zhang, Gang Wang, Yang Chen","doi":"10.2174/1874835X01003020069","DOIUrl":"https://doi.org/10.2174/1874835X01003020069","url":null,"abstract":"","PeriodicalId":206173,"journal":{"name":"The Open Ocean Engineering Journal","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115794300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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