Journal of Ocean Engineering and Science最新文献_第8页

Memory response in a nonlocal micropolar double porous thermoelastic medium with variable conductivity under Moore-Gibson-Thompson thermoelasticity theory 基于Moore-Gibson-Thompson热弹性理论的变电导率非局部微极双孔热弹性介质的记忆响应

IF 7.1 1区工程技术

Journal of Ocean Engineering and Science Pub Date : 2023-06-01 DOI: 10.1016/j.joes.2022.01.010

Shishir Gupta, Rachaita Dutta, Soumik Das

{"title":"Memory response in a nonlocal micropolar double porous thermoelastic medium with variable conductivity under Moore-Gibson-Thompson thermoelasticity theory","authors":"Shishir Gupta, Rachaita Dutta, Soumik Das","doi":"10.1016/j.joes.2022.01.010","DOIUrl":"10.1016/j.joes.2022.01.010","url":null,"abstract":"<div><p>The present study enlightens the two-dimensional analysis of the thermo-mechanical response for a micropolar double porous thermoelastic material with voids (MDPTMWV) by virtue of Eringen’s theory of nonlocal elasticity. Moore-Gibson-Thompson (MGT) heat equation is introduced to the considered model in the context of memory-dependent derivative and variable conductivity. By employing the normal mode technique, the non-dimensional coupled governing equations of motion are solved to determine the analytical expressions of the displacements, temperature, void volume fractions, microrotation vector, force stress tensors, and equilibrated stress vectors. Several two-dimensional graphs are presented to demonstrate the influence of various parameters, such as kernel functions, thermal conductivity, and nonlocality. Furthermore, different generalized thermoelasticity theories with variable conductivity are compared to visualize the variations in the distributions associated with the prior mentioned variables. Some particular cases are also discussed in the presence and absence of different parameters.</p></div>","PeriodicalId":48514,"journal":{"name":"Journal of Ocean Engineering and Science","volume":null,"pages":null},"PeriodicalIF":7.1,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43504804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 11

A novel multi-module coupled algorithm for the wreck off-bottom simulation 沉船离底仿真的一种新型多模块耦合算法

1区工程技术

Journal of Ocean Engineering and Science Pub Date : 2023-06-01 DOI: 10.1016/j.joes.2023.05.003

Shangzhe Xin, Yiting Wang, Lei Wang, Xiaodong Zhu, Shihai Chen, Dongrong Zhou

{"title":"A novel multi-module coupled algorithm for the wreck off-bottom simulation","authors":"Shangzhe Xin, Yiting Wang, Lei Wang, Xiaodong Zhu, Shihai Chen, Dongrong Zhou","doi":"10.1016/j.joes.2023.05.003","DOIUrl":"https://doi.org/10.1016/j.joes.2023.05.003","url":null,"abstract":"This paper proposes a novel multi-module coupled algorithm for the wreck off-bottom simulation (MCAWOS), involving several structures, multiple mediums, and three modules: the wreck-soil interaction module, the lifting-buffering module, and the barge-cable coupled module. In the present algorithm, the finite element method, the potential flow method and the lumped mass method are integrated and used to simulate the off-bottom process. The dynamic response characteristics of a typical salvage case with rated lifting tensions are investigated. It is found that the salvage system in waves exhibits a special breakout phenomenon, where the wreck displacements increase abruptly, and uneven distributions of the lifting tensions are observed. Case studies are conducted to further ascertain the mechanism of the breakout. As the rated lifting tension increases, the salvage efficiency rises, while the maximum roll and pitch amplitudes of the wreck decrease. Meanwhile, larger rated tension may result in more waste in equipment lifting capacity, thus 229 ton is finally selected as the appropriate preset lifting tension. In addition, when the wave direction angle increases from 90∘ to 180∘, the maximum roll value of the wreck shows a roughly decreasing trend and the planar deflection of the salvage barge relative to the wreck decreases. However, the maximum values of pitch, yaw, lifting tension and Mises seabed soil stress show irregular fluctuations. Taking all dynamic indicators into account, the wave heading interval of 150∘ to 180∘ is expected to be an ideal operating window. Conversely the 105∘ case is a dangerous state.","PeriodicalId":48514,"journal":{"name":"Journal of Ocean Engineering and Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135821211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Numerical study of the flow at a vertical pile with net-like scour protection matt 具有网状防冲matt的垂直桩流场数值研究

IF 7.1 1区工程技术

Journal of Ocean Engineering and Science Pub Date : 2023-06-01 DOI: 10.1016/j.joes.2023.06.002

Minxi Zhang, Han Zhao, Dongliang Zhao, Shaolin Yue, Huan Zhou, Xudong Zhao, C. Gualtieri, Guoliang Yu

引用次数: 1

Geometric and non-geometric impact on Coanda effect propulsion device for UUV application 几何和非几何影响对UUV应用中康达效应推进装置的影响

IF 7.1 1区工程技术

Journal of Ocean Engineering and Science Pub Date : 2023-06-01 DOI: 10.1016/j.joes.2023.06.001

Yiwei Zhang, Rongxin Cui, Fei Deng

引用次数: 0

Painlevé analysis, auto-Bäcklund transformation and new exact solutions of (2+1) and (3+1)-dimensional extended Sakovich equation with time dependent variable coefficients in ocean physics 海洋物理中变系数（2+1）和（3+1）维扩展Sakovich方程的Painlevé分析、自Bäcklund变换和新的精确解

IF 7.1 1区工程技术

Journal of Ocean Engineering and Science Pub Date : 2023-06-01 DOI: 10.1016/j.joes.2022.01.008

Shailendra Singh, S. Saha Ray

{"title":"Painlevé analysis, auto-Bäcklund transformation and new exact solutions of (2+1) and (3+1)-dimensional extended Sakovich equation with time dependent variable coefficients in ocean physics","authors":"Shailendra Singh, S. Saha Ray","doi":"10.1016/j.joes.2022.01.008","DOIUrl":"10.1016/j.joes.2022.01.008","url":null,"abstract":"<div><p>This article considers time-dependent variable coefficients <span><math><mrow><mo>(</mo><mn>2</mn><mo>+</mo><mn>1</mn><mo>)</mo></mrow></math></span> and <span><math><mrow><mo>(</mo><mn>3</mn><mo>+</mo><mn>1</mn><mo>)</mo></mrow></math></span>-dimensional extended Sakovich equation. Painlevé analysis and auto-Bäcklund transformation methods are used to examine both the considered equations. Painlevé analysis is appeared to test the integrability while an auto-Bäcklund transformation method is being presented to derive new analytic soliton solution families for both the considered equations. Two new family of exact analytical solutions are being obtained successfully for each of the considered equations. The soliton solutions in the form of rational and exponential functions are being depicted. The results are also expressed graphically to illustrate the potential and physical behaviour of both equations. Both the considered equations have applications in ocean wave theory as they depict new solitary wave soliton solutions by 3D and 2D graphs.</p></div>","PeriodicalId":48514,"journal":{"name":"Journal of Ocean Engineering and Science","volume":null,"pages":null},"PeriodicalIF":7.1,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42793009","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Construction of multiple new analytical soliton solutions and various dynamical behaviors to the nonlinear convection-diffusion-reaction equation with power-law nonlinearity and density-dependent diffusion via Lie symmetry approach together with a couple of integration approaches 利用李对称方法和几种积分方法构造幂律非线性和密度相关扩散非线性对流-扩散-反应方程的多个新的解析孤子解和各种动力学行为

IF 7.1 1区工程技术

Journal of Ocean Engineering and Science Pub Date : 2023-06-01 DOI: 10.1016/j.joes.2022.01.006

Shoukry El-Ganaini , Sachin Kumar , Monika Niwas

{"title":"Construction of multiple new analytical soliton solutions and various dynamical behaviors to the nonlinear convection-diffusion-reaction equation with power-law nonlinearity and density-dependent diffusion via Lie symmetry approach together with a couple of integration approaches","authors":"Shoukry El-Ganaini , Sachin Kumar , Monika Niwas","doi":"10.1016/j.joes.2022.01.006","DOIUrl":"10.1016/j.joes.2022.01.006","url":null,"abstract":"<div><p>By taking advantage of three different computational analytical methods: the Lie symmetry analysis, the generalized Riccati equation mapping approach, and the modified Kudryashov approach, we construct multiple new analytical soliton solutions to the nonlinear convection-diffusion-reaction equation (NCDR) with power-law nonlinearity and density-dependent diffusion. Lie symmetry analysis is one of the powerful techniques that reduce the higher-order partial differential equation into an ordinary differential equation by reduction of independent variables. By the Lie group technique, we obtain one-parameter invariant transformations, determining equations and corresponding vectors for the considered convection-diffusion-reaction equation. By treating the parameters of the governing equation as constants, the applied methods yield a variety of new closed-form solutions, including inverse function solutions, periodic solutions, exponential function solutions, dark solitons, singular solitons, combo bright-singular solitons, and the combine of bright-dark solitons and dark-bright solitons. Moreover, using the Bäcklund transformation of the generalized Riccati equation and modified Kudryashov method, we can construct multiple solitons and other solutions of the considered equation. The obtained new solutions of this work demonstrate that the used approaches are powerful and effective in dealing with nonlinear equations, and that these solutions are required to explain many biological and physical phenomena. Comparing our obtained solutions of this paper with the ones obtained in the literature, we see that our solutions are new and not reported elsewhere. These newly formed soliton solutions will be more beneficial in the various disciplines of ocean engineering, plasma physics, and nonlinear sciences.</p></div>","PeriodicalId":48514,"journal":{"name":"Journal of Ocean Engineering and Science","volume":null,"pages":null},"PeriodicalIF":7.1,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47680657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Abundant closed-form wave solutions to the simplified modified Camassa-Holm equation 简化修正Camassa-Holm方程的丰富闭式波解

IF 7.1 1区工程技术

Journal of Ocean Engineering and Science Pub Date : 2023-06-01 DOI: 10.1016/j.joes.2022.01.012

S M Rayhanul Islam , S M Yiasir Arafat , Hanfeng Wang

{"title":"Abundant closed-form wave solutions to the simplified modified Camassa-Holm equation","authors":"S M Rayhanul Islam , S M Yiasir Arafat , Hanfeng Wang","doi":"10.1016/j.joes.2022.01.012","DOIUrl":"10.1016/j.joes.2022.01.012","url":null,"abstract":"<div><p>The simplified modified Camassa-Holm (SMCH) equation is an important nonlinear model equation for identifying various wave phenomena in ocean engineering and science. The new auxiliary equation (NAE) method has been applied to the SMCH equation. Base on the method, we have obtained some novel analytical solutions such as hyperbolic, trigonometric, exponential, and rational function solutions of the SMCH equation. For appropriate values of parameters, three dimensional (3D) and two dimensional (2D) graphs are designed by Mathematica. The stability of the model is also discussed in this manuscript. The dynamic and physical behaviors of the solutions derived from the SMCH equation have been extensively discussed by these plots. All our solutions are indispensable for understanding the nonlinear phenomena of dispersive waves that are important in ocean engineering and science. In addition, our results are essential to clarify the various oceanographic applications containing ocean gravity waves, offshore rig in water, energy associated with a moving ocean wave and numerous other related phenomena. Finally, the obtained solutions are helpful for studying wave interactions in many new structures and high-dimensional models.</p></div>","PeriodicalId":48514,"journal":{"name":"Journal of Ocean Engineering and Science","volume":null,"pages":null},"PeriodicalIF":7.1,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45140995","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 11

Forces of fully nonlinear interfacial periodic waves on a cylindrical pile in a two-layer fluid with free-surface boundary conditions 具有自由表面边界条件的两层流体中圆柱桩上的完全非线性界面周期波力

IF 7.1 1区工程技术

Journal of Ocean Engineering and Science Pub Date : 2023-05-30 DOI: 10.1016/j.joes.2023.05.004

Jiyang Li , Zeng Liu , Jie Cui

{"title":"Forces of fully nonlinear interfacial periodic waves on a cylindrical pile in a two-layer fluid with free-surface boundary conditions","authors":"Jiyang Li , Zeng Liu , Jie Cui","doi":"10.1016/j.joes.2023.05.004","DOIUrl":"10.1016/j.joes.2023.05.004","url":null,"abstract":"<div><p>In the frame of fully nonlinear potential flow theory, series solutions of interfacial periodic gravity waves in a two-layer fluid with free surface are obtained by the homotopy analysis method (HAM), and the related wave forces on a vertical cylinder are analyzed. The solution procedure of the HAM for the interfacial wave model with rigid upper surface is further developed to consider the free surface boundary. And forces of nonlinear interfacial periodic waves are estimated by both the classical and modified Morison equations. It is found that the estimated wave forces by the classical Morison equation are more conservative than those by the modified Morison’s formula, and the relative error between the total inertial forces calculated by these two kinds of Morison’s formulae remains over <span><math><mrow><mn>25</mn><mo>%</mo></mrow></math></span> for most cases unless the upper and lower layer depths are both large enough. It demonstrates that the convective acceleration neglected in the classical Morison equation is rather important for inertial force exerted by not only internal solitary waves but also interfacial periodic waves. All of these should further deepen our understanding of internal periodic wave forces on a vertical marine riser.</p></div>","PeriodicalId":48514,"journal":{"name":"Journal of Ocean Engineering and Science","volume":null,"pages":null},"PeriodicalIF":7.1,"publicationDate":"2023-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2468013323000293/pdfft?md5=7e15f4835bfc8b1774732c70edf4ed5d&pid=1-s2.0-S2468013323000293-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134992657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Double ceramic sphere's sympathetic implosions triggered by local impacts 双陶瓷球的内爆是由局部撞击引起的

IF 7.1 1区工程技术

Journal of Ocean Engineering and Science Pub Date : 2023-04-01 DOI: 10.1016/j.joes.2023.04.001

Yandong Hu, Yifan Zhao, Min Zhao, Miaolin Feng

引用次数: 1

Traveling wave structures of some fourth-order nonlinear partial differential equations 一类四阶非线性偏微分方程的行波结构

IF 7.1 1区工程技术

Journal of Ocean Engineering and Science Pub Date : 2023-03-01 DOI: 10.1016/j.joes.2021.12.006

Handenur Esen , Neslihan Ozdemir , Aydin Secer , Mustafa Bayram

引用次数: 7