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Mathematical and Computational Applications, Volume 28, Issue 5

2023 October - 12 articles

Cover Story: Recently, Physics-Informed Neural Networks (PINNs) have drawn attention for solving computational physics issues. Unlike traditional neural networks that rely heavily on a large amount of labeled data, PINNs incorporate physical laws into the neural network's loss function. This method ensures output variables comply with physical equations, eliminating the need for labeled data. This research utilizes PINNs to solve the classic Navier–Stokes equations in thermal fluid engineering, focusing on a 2D incompressible laminar flow. We examine flows around a circular and elliptical particle. Additionally, the particle drag force coefficient is numerically computed to quantify the discrepancy in the results of the PINNs as compared to CFD outcomes. View this paper
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Articles (12)

  • Article
  • Open Access
2,342 Views
17 Pages

We devised a data-driven framework for uncovering hidden control strategies used by an evolutionary system described by an evolutionary probability distribution. This innovative framework enables deciphering of the concealed mechanisms that contribut...

(This article belongs to the Collection Mathematical Modelling of COVID-19)
  • Article
  • Open Access
38 Citations
13,256 Views
15 Pages

In recent years, Physics-Informed Neural Networks (PINNs) have drawn great interest among researchers as a tool to solve computational physics problems. Unlike conventional neural networks, which are black-box models that “blindly” establ...

(This article belongs to the Topic Numerical Methods for Partial Differential Equations)
  • Article
  • Open Access
5 Citations
3,266 Views
16 Pages

For positioning and anti-swing control of bridge cranes, the active learning control method can reduce the dependence of controller design on the model and the influence of unmodeled dynamics on the controller’s performance. By only using the r...

(This article belongs to the Section Engineering)
  • Feature Paper
  • Article
  • Open Access
14 Citations
5,352 Views
31 Pages

Various dominance structures have been proposed in the multi-objective optimization literature. However, a systematic procedure to understand their effect in determining the resulting optimal set for generic domination principles, besides the standar...

(This article belongs to the Collection Feature Papers in Mathematical and Computational Applications 2023)
  • Article
  • Open Access
17 Citations
5,306 Views
26 Pages

Enhanced MPPT-Based Fractional-Order PID for PV Systems Using Aquila Optimizer

  • Mohammed Tadj,
  • Lakhdar Chaib,
  • Abdelghani Choucha,
  • Al-Motasem Aldaoudeyeh and ,
  • Ahmed Fathy,
  • Hegazy Rezk,
  • Mohamed Louzazni and
  • Attia El-Fergany
  • + 3 authors+ 0 author

This paper proposes a controller to track the maximum power point (MPP) of a photovoltaic (PV) system using a fractional-order proportional integral derivative (FOPID) controller. The employed MPPT is operated based on a dp/dv feedback approach. The...

(This article belongs to the Section Engineering)
  • Article
  • Open Access
32 Citations
3,621 Views
19 Pages

Predictive Modeling and Control Strategies for the Transmission of Middle East Respiratory Syndrome Coronavirus

  • Bibi Fatima,
  • Mehmet Yavuz,
  • Mati ur Rahman,
  • Ali Althobaiti and
  • Saad Althobaiti

30 September 2023

The Middle East respiratory syndrome coronavirus (MERS-CoV) is a highly infectious respiratory illness that poses a significant threat to public health. Understanding the transmission dynamics of MERS-CoV is crucial for effective control and preventi...

(This article belongs to the Collection Feature Papers in Mathematical and Computational Applications 2023)
  • Article
  • Open Access
7 Citations
3,340 Views
29 Pages

22 September 2023

Total fractional-order variation (TFOV) in image deblurring problems can reduce/remove the staircase problems observed with the image deblurring technique by using the standard total variation (TV) model. However, the discretization of the Euler–Lagr...

(This article belongs to the Special Issue Significance of Mathematical Modelling and Control in Real-World Problems: New Developments and Applications)
  • Article
  • Open Access
2 Citations
2,492 Views
38 Pages

12 September 2023

We used the classical Lie symmetry method to study the damped Klein–Gordon equation (Kge) with power law non-linearity utt+α(u)ut=(uβux)x+f(u). We carried out a complete Lie symmetry classification by finding forms for α(u) and...

(This article belongs to the Special Issue Symmetry Methods for Solving Differential Equations)
  • Article
  • Open Access
2 Citations
2,717 Views
16 Pages

New Quality Measures for Quadrilaterals and New Discrete Functionals for Grid Generation

  • Guilmer Ferdinand González Flores and
  • Pablo Barrera Sánchez

In this paper, we review some grid quality metrics and define some new quality measures for quadrilateral elements. The curved elements are not discussed. Usually, the maximum value of a quality measure corresponds to the minimum value of the energy...

(This article belongs to the Collection Feature Papers in Mathematical and Computational Applications 2023)
  • Article
  • Open Access
5 Citations
1,915 Views
17 Pages

In this research work, we investigate the asymptotic behavior of a nonlinear swelling (also called expansive) soil system with a time delay and nonlinear damping of variable exponents. We should note here that swelling soils contain clay minerals tha...

(This article belongs to the Section Engineering)
  • Article
  • Open Access
5 Citations
4,929 Views
35 Pages

This paper studies and analyzes the approximation of one-dimensional smooth closed-form functions with compact support using a mixed Fourier series (i.e., a combination of partial Fourier series and other forms of partial series). To explore the pote...

(This article belongs to the Collection Feature Papers in Mathematical and Computational Applications 2023)
  • Article
  • Open Access
6 Citations
2,743 Views
11 Pages

This study investigates via Lie symmetry analysis the Hunter–Saxton equation, an equation relevant to the theoretical analysis of nematic liquid crystals. We employ the multiplier method to obtain conservation laws of the equation that arise fr...

(This article belongs to the Collection Feature Papers in Mathematical and Computational Applications 2023)
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Math. Comput. Appl. - ISSN 2297-8747