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Article
Publication date: 7 June 2023

Na Liu

This paper aims to study the breather, lump-kink and interaction solutions of a (3 + 1)-dimensional generalized shallow water waves (GSWW) equation, which describes water waves…

41

Abstract

Purpose

This paper aims to study the breather, lump-kink and interaction solutions of a (3 + 1)-dimensional generalized shallow water waves (GSWW) equation, which describes water waves propagating in the ocean or is used for simulating weather.

Design/methodology/approach

Hirota bilinear form and the direct method are used to construct breather and lump-kink solutions of the GSWW equation. The “rational-cosh-cos-type” test function is applied to obtain three kinds of interaction solutions.

Findings

The fusion and fission of the interaction solutions between a lump wave and a 1-kink soliton of the GSWW equation are studied. The dynamics of three kinds of interaction solutions between lump, kink and periodic waves are discussed graphically.

Originality/value

This paper studies the breather, lump-kink and interaction solutions of the GSWW equation by using various approaches and provides some phenomena that have not been studied.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 33 no. 9
Type: Research Article
ISSN: 0961-5539

Keywords

Article
Publication date: 7 June 2023

Abdul-Majid Wazwaz, Weaam Alhejaili and Samir El-Tantawy

The purpose of this study is to form a linear structure of components of the modified Korteweg–De Vries (mKdV) hierarchy. The new model includes 3rd order standard mKdV equation…

Abstract

Purpose

The purpose of this study is to form a linear structure of components of the modified Korteweg–De Vries (mKdV) hierarchy. The new model includes 3rd order standard mKdV equation, 5th order and 7th order mKdV equations.

Design/methodology/approach

The authors investigate Painlevé integrability of the constructed linear structure.

Findings

The Painlevé analysis demonstrates that established sum of integrable models retains the integrability of each component.

Research limitations/implications

The research also presents a set of rational schemes of trigonometric and hyperbolic functions to derive breather solutions.

Practical implications

The authors also furnish a variety of solitonic solutions and complex solutions as well.

Social implications

The work formally furnishes algorithms for extending integrable equations that consist of components of a hierarchy.

Originality/value

The paper presents an original work for developing Painlevé integrable model via using components of a hierarchy.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 33 no. 9
Type: Research Article
ISSN: 0961-5539

Keywords

Article
Publication date: 14 September 2023

Abdul-Majid Wazwaz, Mansoor Alshehri and Samir A. El-Tantawy

This study aims to explore novel solitary wave solutions of a new (3 + 1)-dimensional nonlocal Boussinesq equation that illustrates nonlinear water dynamics.

Abstract

Purpose

This study aims to explore novel solitary wave solutions of a new (3 + 1)-dimensional nonlocal Boussinesq equation that illustrates nonlinear water dynamics.

Design/methodology/approach

The authors use the Painlevé analysis to study its complete integrability in the Painlevé sense.

Findings

The Painlevé analysis demonstrates the compatibility condition for the model integrability with the addition of new extra terms.

Research limitations/implications

The phase shifts, phase variables and Hirota’s bilinear algorithm are used to furnish multiple soliton solutions.

Practical implications

The authors also furnish a variety of numerous periodic solutions, kink solutions and singular solutions.

Social implications

The work formally furnishes algorithms for investigating several physical systems, including plasma physics, optical communications and oceans and seas, among others.

Originality/value

This paper presents an original work using a newly developed Painlevé integrable model, as well as novel and insightful findings.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 33 no. 12
Type: Research Article
ISSN: 0961-5539

Keywords

Article
Publication date: 28 March 2023

Abdul-Majid Wazwaz, Haifa A. Alyousef and Samir El-Tantawy

This study aims to propose an extended (3 + 1)-dimensional integrable Kadomtsev–Petviashvili equation characterized by adding three new linear terms.

Abstract

Purpose

This study aims to propose an extended (3 + 1)-dimensional integrable Kadomtsev–Petviashvili equation characterized by adding three new linear terms.

Design/methodology/approach

This study formally uses Painlevé test to confirm the integrability of the new system.

Findings

The Painlevé analysis shows that the compatibility condition for integrability does not die away by adding three new linear terms with distinct coefficients.

Research limitations/implications

This study uses the Hirota's bilinear method to explore multiple soliton solutions where phase shifts and phase variable are explored.

Practical implications

This study also furnishes a class of lump solutions (LSs), which are rationally localized in all directions in space, using distinct values of the parameters via using the positive quadratic function method.

Social implications

This study also shows the power of the simplified Hirota’s method in handling integrable equations.

Originality/value

This paper introduces an original work with newly developed Painlevé integrable model and shows new useful findings.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 33 no. 7
Type: Research Article
ISSN: 0961-5539

Keywords

Article
Publication date: 1 November 2023

Suheil Khuri

The aim of this study is to offer a contemporary approach for getting optical soliton and traveling wave solutions for the Date–Jimbo–Kashiwara–Miwa equation.

37

Abstract

Purpose

The aim of this study is to offer a contemporary approach for getting optical soliton and traveling wave solutions for the Date–Jimbo–Kashiwara–Miwa equation.

Design/methodology/approach

The approach is based on a recently constructed ansätze strategy. This method is an alternative to the Painleve test analysis, producing results similarly, but in a more practical, straightforward manner.

Findings

The approach proved the existence of both singular and optical soliton solutions. The method and its application show how much better and simpler this new strategy is than current ones. The most significant benefit is that it may be used to solve a wide range of partial differential equations that are encountered in practical applications.

Originality/value

The approach has been developed recently, and this is the first time that this method is applied successfully to extract soliton solutions to the Date–Jimbo–Kashiwara–Miwa equation.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 33 no. 12
Type: Research Article
ISSN: 0961-5539

Keywords

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