Journal of Ocean Engineering and Science最新文献_第10页

New generalized fuzzy transform computations for solving fractional partial differential equations arising in oceanography 求解海洋学中分数阶偏微分方程的新的广义模糊变换计算

IF 7.1 1区工程技术

Journal of Ocean Engineering and Science Pub Date : 2023-01-01 DOI: 10.1016/j.joes.2021.11.004

Saima Rashid , Rehana Ashraf , Zakia Hammouch

{"title":"New generalized fuzzy transform computations for solving fractional partial differential equations arising in oceanography","authors":"Saima Rashid , Rehana Ashraf , Zakia Hammouch","doi":"10.1016/j.joes.2021.11.004","DOIUrl":"10.1016/j.joes.2021.11.004","url":null,"abstract":"<div><p>This paper presents a study of nonlinear waves in shallow water. The Korteweg-de Vries (KdV) equation has a canonical version based on oceanography theory, the shallow water waves in the oceans, and the internal ion-acoustic waves in plasma. Indeed, the main goal of this investigation is to employ a semi-analytical method based on the homotopy perturbation transform method (HPTM) to obtain the numerical findings of nonlinear dispersive and fifth order KdV models for investigating the behaviour of magneto-acoustic waves in plasma via fuzziness. This approach is connected with the fuzzy generalized integral transform and HPTM. Besides that, two novel results for fuzzy generalized integral transformation concerning fuzzy partial <span><math><mrow><mi>g</mi><mi>H</mi></mrow></math></span>-derivatives are presented. Several illustrative examples are illustrated to show the effectiveness and supremacy of the proposed method. Furthermore, 2D and 3D simulations depict the comparison analysis between two fractional derivative operators (Caputo and Atangana-Baleanu fractional derivative operators in the Caputo sense) under generalized <span><math><mrow><mi>g</mi><mi>H</mi></mrow></math></span>-differentiability. The projected method (GHPTM) demonstrates a diverse spectrum of applications for dealing with nonlinear wave equations in scientific domains. The current work, as a novel use of GHPTM, demonstrates some key differences from existing similar methods.</p></div>","PeriodicalId":48514,"journal":{"name":"Journal of Ocean Engineering and Science","volume":null,"pages":null},"PeriodicalIF":7.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45240314","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: 6

Three-phase-lag functionally graded thermoelastic model having double porosity and gravitational effect 具有孔隙度和引力双重效应的三相滞后梯度热弹性模型

IF 7.1 1区工程技术

Journal of Ocean Engineering and Science Pub Date : 2023-01-01 DOI: 10.1016/j.joes.2021.11.005

Kapil Kumar Kalkal , Aarti Kadian , Sunil Kumar

引用次数: 3

New exact solutions of the Mikhailov-Novikov-Wang equation via three novel techniques 用三种新方法求出Mikhailov-Novikov-Wang方程的精确解

IF 7.1 1区工程技术

Journal of Ocean Engineering and Science Pub Date : 2023-01-01 DOI: 10.1016/j.joes.2021.12.004

Arzu Akbulut , Melike Kaplan , Mohammed K.A. Kaabar

引用次数: 7

Evolutionary dynamics of solitary wave profiles and abundant analytical solutions to a (3+1)-dimensional burgers system in ocean physics and hydrodynamics 海洋物理和流体动力学中(3+1)维Burgers系统的孤立波剖面演化动力学和丰富的解析解

IF 7.1 1区工程技术

Journal of Ocean Engineering and Science Pub Date : 2023-01-01 DOI: 10.1016/j.joes.2021.11.002

Sachin Kumar , Amit Kumar , Brij Mohan

{"title":"Evolutionary dynamics of solitary wave profiles and abundant analytical solutions to a (3+1)-dimensional burgers system in ocean physics and hydrodynamics","authors":"Sachin Kumar , Amit Kumar , Brij Mohan","doi":"10.1016/j.joes.2021.11.002","DOIUrl":"10.1016/j.joes.2021.11.002","url":null,"abstract":"<div><p>In the fields of oceanography, hydrodynamics, and marine engineering, many mathematicians and physicists are interested in Burgers-type equations to show the different dynamics of nonlinear wave phenomena, one of which is a (3+1)-dimensional Burgers system that is currently being studied. In this paper, we apply two different analytical methods, namely the generalized Kudryashov (GK) method, and the generalized exponential rational function method, to derive abundant novel analytic exact solitary wave solutions, including multi-wave solitons, multi-wave peakon solitons, kink-wave profiles, stripe solitons, wave-wave interaction profiles, and periodic oscillating wave profiles for a (3+1)-dimensional Burgers system with the assistance of symbolic computation. By employing the generalized Kudryashov method, we obtain some new families of exact solitary wave solutions for the Burgers system. Further, we applied the generalized exponential rational function method to obtain a large number of soliton solutions in the forms of trigonometric and hyperbolic function solutions, exponential rational function solutions, periodic breather-wave soliton solutions, dark and bright solitons, singular periodic oscillating wave soliton solutions, and complex multi-wave solutions under various family cases. Based on soft computing via Wolfram Mathematica, all the newly established solutions are verified by back substituting them into the considered Burgers system. Eventually, the dynamical behaviors of some established results are exhibited graphically through three - and two-dimensional wave profiles via numerical simulation.</p></div>","PeriodicalId":48514,"journal":{"name":"Journal of Ocean Engineering and Science","volume":null,"pages":null},"PeriodicalIF":7.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42676925","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: 18

Multiple rational rogue waves for higher dimensional nonlinear evolution equations via symbolic computation approach 用符号计算方法求解高维非线性演化方程的多重有理流氓波

IF 7.1 1区工程技术

Journal of Ocean Engineering and Science Pub Date : 2023-01-01 DOI: 10.1016/j.joes.2021.11.001

Saima Arshed , Nauman Raza , Asma Rashid Butt , Ahmad Javid , J.F. Gómez-Aguilar

引用次数: 6

Specific wave profiles and closed-form soliton solutions for generalized nonlinear wave equation in (3+1)-dimensions with gas bubbles in hydrodynamics and fluids 流体力学与流体中含气泡的(3+1)维广义非线性波动方程的特定波廓和闭型孤子解

IF 7.1 1区工程技术

Journal of Ocean Engineering and Science Pub Date : 2023-01-01 DOI: 10.1016/j.joes.2021.12.003

Sachin Kumar , Ihsanullah Hamid , M.A. Abdou

{"title":"Specific wave profiles and closed-form soliton solutions for generalized nonlinear wave equation in (3+1)-dimensions with gas bubbles in hydrodynamics and fluids","authors":"Sachin Kumar , Ihsanullah Hamid , M.A. Abdou","doi":"10.1016/j.joes.2021.12.003","DOIUrl":"10.1016/j.joes.2021.12.003","url":null,"abstract":"<div><p>Nonlinear evolution equations (NLEEs) are frequently employed to determine the fundamental principles of natural phenomena. Nonlinear equations are studied extensively in nonlinear sciences, ocean physics, fluid dynamics, plasma physics, scientific applications, and marine engineering. The generalized exponential rational function (GERF) technique is used in this article to seek several closed-form wave solutions and the evolving dynamics of different wave profiles to the generalized nonlinear wave equation in (3+1) dimensions, which explains several more nonlinear phenomena in liquids, including gas bubbles. A large number of closed-form wave solutions are generated, including trigonometric function solutions, hyperbolic trigonometric function solutions, and exponential rational functional solutions. In the dynamics of distinct solitary waves, a variety of soliton solutions are obtained, including single soliton, multi-wave structure soliton, kink-type soliton, combo singular soliton, and singularity-form wave profiles. These determined solutions have never previously been published. The dynamical wave structures of some analytical solutions are graphically demonstrated using three-dimensional graphics by providing suitable values to free parameters. This technique can also be used to obtain the soliton solutions of other well-known equations in engineering physics, fluid dynamics, and other fields of nonlinear sciences.</p></div>","PeriodicalId":48514,"journal":{"name":"Journal of Ocean Engineering and Science","volume":null,"pages":null},"PeriodicalIF":7.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47326738","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: 19

A robust computational approach for Zakharov-Kuznetsov equations of ion-acoustic waves in a magnetized plasma via the Shehu transform 通过Shehu变换求解磁化等离子体中离子声波的Zakharov-Kuznetsov方程的鲁棒计算方法

IF 7.1 1区工程技术

Journal of Ocean Engineering and Science Pub Date : 2023-01-01 DOI: 10.1016/j.joes.2021.11.006

Parthkumar P. Sartanpara, Ramakanta Meher

引用次数: 12

On the dynamics of nonlinear propagation and interaction of the modified KP solitons in multicomponent complex plasmas 修正KP孤子在多组分复杂等离子体中的非线性传播动力学与相互作用

IF 7.1 1区工程技术

Journal of Ocean Engineering and Science Pub Date : 2022-12-01 DOI: 10.1016/j.joes.2021.10.005

Muhammad Shohaib , W. Masood , R. Jahangir , M. Siddiq , Sadah A. Alkhateeb , S.A. El-Tantawy

{"title":"On the dynamics of nonlinear propagation and interaction of the modified KP solitons in multicomponent complex plasmas","authors":"Muhammad Shohaib , W. Masood , R. Jahangir , M. Siddiq , Sadah A. Alkhateeb , S.A. El-Tantawy","doi":"10.1016/j.joes.2021.10.005","DOIUrl":"10.1016/j.joes.2021.10.005","url":null,"abstract":"<div><p>Dust-acoustic waves (DAWs) are analyzed in the small amplitude limit in a collisionless unmagnetized dusty plasma whose constituents are inertial dust grains, massless ions expressed by the generalized <span><math><mrow><mo>(</mo><mi>r</mi><mo>,</mo><mi>q</mi><mo>)</mo></mrow></math></span> distribution and inertialess Maxwellian electrons using the fluid theory of plasmas. The modified Kadomtsev-Petviashvili (mKP) equation is derived at a critical plasma condition for which the quadratic nonlinearity vanishes. The propagation of single soliton and interaction of two solitons are analyzed for the mKP equation in the context of plasma physics by employing Hirota bilinear formalism. The effects of the flatness parameter <span><math><mi>r</mi></math></span> and tail parameter <span><math><mi>q</mi></math></span> of the ions on the frequency of the DAWs are studied and the comparison with Maxwellian and kappa distributions is drawn. Using the plasma parameters corresponding to the Saturn’s E-ring, the range of electric field amplitude for dust-acoustic solitary waves (DASWs) for different ion distributions is calculated and is shown to agree very well with the Cassini Wideband Receiver (WBR) observations. The interaction time of two DASWs for non-Maxwellian ion distributions is estimated and shown to be fastest for the <span><math><mrow><mo>(</mo><mi>r</mi><mo>,</mo><mi>q</mi><mo>)</mo></mrow></math></span> distributed ions. The interesting feature of the interaction between compressive solitons with their rarefactive counterparts is also discussed in detail.</p></div>","PeriodicalId":48514,"journal":{"name":"Journal of Ocean Engineering and Science","volume":null,"pages":null},"PeriodicalIF":7.1,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2468013321001091/pdfft?md5=2e3854cc7732ac989d773c5542581f0f&pid=1-s2.0-S2468013321001091-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48951585","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: 16

Durability evaluation of GFRP rebars in harsh alkaline environment using optimized tree-based random forest model 基于优化树木随机森林模型的GFRP钢筋在恶劣碱性环境下耐久性评价

IF 7.1 1区工程技术

Journal of Ocean Engineering and Science Pub Date : 2022-12-01 DOI: 10.1016/j.joes.2021.10.012

Mudassir Iqbal , Daxu Zhang , Fazal E. Jalal

{"title":"Durability evaluation of GFRP rebars in harsh alkaline environment using optimized tree-based random forest model","authors":"Mudassir Iqbal , Daxu Zhang , Fazal E. Jalal","doi":"10.1016/j.joes.2021.10.012","DOIUrl":"10.1016/j.joes.2021.10.012","url":null,"abstract":"<div><p>GFRP bars reinforced in submerged or moist seawater and ocean concrete is subjected to highly alkaline conditions. While investigating the durability of GFRP bars in alkaline environment, the effect of surrounding temperature and conditioning duration on tensile strength retention (TSR) of GFRP bars is well investigated with laboratory aging of GFRP bars. However, the role of variable bar size and volume fraction of fiber have been poorly investigated. Additionally, various structural codes recommend the use of an additional environmental reduction factor to accurately reflect the long-term performance of GFRP bars in harsh environments. This study presents the development of Random Forest (RF) regression model to predict the TSR of laboratory conditioned bars in alkaline environment based on a reliable database comprising 772 tested specimens. RF model was optimized, trained, and validated using variety of statistical checks available in the literature. The developed RF model was used for the sensitivity and parametric analysis. Moreover, the formulated RF model was used for studying the long-term performance of GFRP rebars in the alkaline concrete environment. The sensitivity analysis exhibited that temperature and pH are among the most influential attributes in TSR, followed by volume fraction of fibers, duration of conditioning, and diameter of the bars, respectively. The bars with larger diameter and high-volume fraction of fibers are less susceptible to degradation in contrast to the small diameter bars and relatively low fiber's volume fraction. Also, the long-term performance revealed that the existing recommendations by various codes regarding environmental reduction factors are conservative and therefore needs revision accordingly.</p></div>","PeriodicalId":48514,"journal":{"name":"Journal of Ocean Engineering and Science","volume":null,"pages":null},"PeriodicalIF":7.1,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2468013321001273/pdfft?md5=f21d1a5e529afa2ef3fd2b09bbab4382&pid=1-s2.0-S2468013321001273-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43563110","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: 29

Precontrol of short-period motion for a Tension Leg Platform 张力腿平台短周期运动预控制

IF 7.1 1区工程技术

Journal of Ocean Engineering and Science Pub Date : 2022-12-01 DOI: 10.1016/j.joes.2022.11.003

Hao Wu , Yan Lin , Yongxi Wu

{"title":"Precontrol of short-period motion for a Tension Leg Platform","authors":"Hao Wu , Yan Lin , Yongxi Wu","doi":"10.1016/j.joes.2022.11.003","DOIUrl":"10.1016/j.joes.2022.11.003","url":null,"abstract":"<div><p>The Tension Leg Platform (TLP) is a hybrid, compliant platform designed to sustain springing and ringing responses that are correlated to short-period motion. Since the period of short-period motion is within the wave energy concentration region, TLPs may experience sensitive short-period motion, such as resonance and green water, that usually cause serious damage to TLPs. In this study, a precontrol methodology is presented as a solution to prevent TLP-sensitive short-period motion. By applying the precontrol methodology, the parameters of TLP can be predetermined, allowing TLP motion performance to meet the requirements of short-period motion before sensitive motions actually occur. For example, the damping coefficient should be less than 4.3, the tendons’ stiffness should be larger than 0.91 × 10<sup>8</sup>, and the dimensionless draft should be less than 0.665. The development of a precontrol methodology is based on a solid theoretical foundation. First, a series of simple and high-fidelity numerical models are proposed to simulate the natural period of roll, natural period of heave, and green water height. Second, a constraint regime is generated based on the numerical models and the sensitive motion range of short-period motion. The constraint regime is divided into two parts: the control range (corresponding to sensitive short-period motion) and the feasible range (the complementary set of control ranges in the whole parameter constraint domain). Finally, TLP parameters are derived from the calculated feasible range. The precontrol methodology goes beyond the conventional approach of real-time control by changing the control from a remedial action to a preventive action.</p></div>","PeriodicalId":48514,"journal":{"name":"Journal of Ocean Engineering and Science","volume":null,"pages":null},"PeriodicalIF":7.1,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2468013322002625/pdfft?md5=34aa81b4729baa6ace342128ade634c9&pid=1-s2.0-S2468013322002625-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42161366","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