Computational Mathematics Methods and Applications in Engineering Science

A special issue of Mathematics (ISSN 2227-7390). This special issue belongs to the section "E: Applied Mathematics".

Deadline for manuscript submissions: 30 April 2026 | Viewed by 956

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Engineering College, Carmen Autonomous University, Calle 56, 4, Esq. Avenida Concordia, Col. Benito Juárez, Campeche, Mexico
Interests: artificial neural network architectures and optimization; advanced backpropagation algorithm development; statistical modeling for environmental systems; process parameter optimization; machine learning in environmental engineering; neural network development; statistical methods; computational techniques; advanced process technologies; methodological expertise
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Dear Colleagues,

Engineering and applied sciences are undergoing a profound transformation, driven by the increasing power and sophistication of computational mathematics. The ability to model, simulate, and optimize complex systems has become indispensable for innovation and problem-solving across all engineering disciplines. From designing next-generation materials to optimizing sustainable energy systems and developing intelligent infrastructure, advanced computational methods are at vital for modern scientific discovery and technological advancement.

This Special Issue, "Computational Mathematics Methods and Applications in Engineering Science," will bring together leading researchers, scientists, and engineers to share their latest theoretical advancements and practical applications in this dynamic field. We seek to create a comprehensive collection of high-impact articles that not only showcase novel mathematical techniques but also demonstrate their successful application to solve pressing real-world engineering challenges. This Special Issue’s scope is intentionally broad to foster cross-disciplinary collaboration, highlighting the universal power of computational mathematics as a foundational tool for modern engineering.

We invite submissions of original research articles, comprehensive reviews, and insightful communications that bridge the gap between mathematical theory and engineering practice.

Prof. Dr. Youness El Hamzaoui
Guest Editor

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Keywords

  • numerical methods for differential equations: the finite element method (FEM) and finite difference method (FDM)
  • the boundary element method (BEM)
  • mesh-free methods and particle methods
  • numerical solutions for partial differential equations (PDEs) and ordinary differential equations (ODEs) in engineering models
  • computational optimization and operations research: linear and nonlinear programming
  • heuristic and metaheuristic algorithms (e.g., genetic algorithms, particle swarm optimization)
  • applications in logistics, structural design, and resource management
  • machine learning and artificial intelligence in engineering: neural networks, deep learning, and reinforcement learning for system modeling and control
  • data-driven modeling and surrogate models for complex simulations
  • applications in predictive maintenance, process control, and materials discovery
  • modeling and simulation: multiphysics and multiscale modeling
  • computational fluid dynamics (CFD)
  • solid mechanics and structural analysis
  • simulation of transport phenomena (heat, mass, and momentum)
  • computational statistics and data analysis: bayesian methods and uncertainty quantification
  • high-dimensional data analysis and signal processing
  • statistical modeling for engineering reliability and risk assessment
  • applications in engineering disciplines: civil and environmental engineering (e.g., water resource management, structural health monitoring)
  • mechanical and aerospace engineering (e.g., aerodynamics, robotics, thermodynamics)
  • chemical and process engineering (e.g., reactor design, separation processes)
  • electrical engineering (e.g., electromagnetics, circuit simulation, control systems). materials science (e.g., computational materials design)

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Published Papers (2 papers)

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Research

22 pages, 3781 KB  
Article
Reliability and Availability Analysis of k-out-of-M+S Retrial Machine Repair System with Two-Way Communication
by Chen-Hsiang Hsieh, Tzu-Hsin Liu, Fu-Min Chang and Yu-Tang Lee
Mathematics 2026, 14(8), 1400; https://doi.org/10.3390/math14081400 (registering DOI) - 21 Apr 2026
Viewed by 131
Abstract
This paper studies the reliability and availability of a k-out-of-(M+S) retrial machine repair system with two-way communication, consisting of M primary components and S warm standby components. The system incorporates the retrial behavior of failed components. When the repairman becomes [...] Read more.
This paper studies the reliability and availability of a k-out-of-(M+S) retrial machine repair system with two-way communication, consisting of M primary components and S warm standby components. The system incorporates the retrial behavior of failed components. When the repairman becomes idle, he initiates outgoing calls after a random period either to failed components in the orbit for repair or to components outside the orbit for preventive maintenance. The main contribution of this study is the incorporation of proactive repairman behavior, which more realistically captures operational practices in certain engineering systems. By employing the matrix analytic method together with a recursive approach, the steady-state probabilities of the system are obtained, and several important performance measures are derived. Furthermore, the Runge–Kutta method is used to evaluate the system reliability and the mean time to failure. A sensitivity analysis is conducted to investigate the effects of key system parameters, supported by numerical experiments and graphical illustrations. Finally, a cost–benefit model is formulated, and a genetic algorithm is implemented to determine the optimal values of the decision variables that minimize the cost–benefit ratio. Full article
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27 pages, 10557 KB  
Article
Numerical and Experimental Estimation of Heat Source Strengths in Multi-Chip Modules on Printed Circuit Boards
by Cheng-Hung Huang and Hao-Wei Su
Mathematics 2026, 14(2), 327; https://doi.org/10.3390/math14020327 - 18 Jan 2026
Viewed by 416
Abstract
In this study, a three-dimensional Inverse Conjugate Heat Transfer Problem (ICHTP) is numerically and experimentally investigated to estimate the heat-source strength of multiple chips mounted on a printed circuit board (PCB) using the Conjugate Gradient Method (CGM) and infrared thermography. The interfaces between [...] Read more.
In this study, a three-dimensional Inverse Conjugate Heat Transfer Problem (ICHTP) is numerically and experimentally investigated to estimate the heat-source strength of multiple chips mounted on a printed circuit board (PCB) using the Conjugate Gradient Method (CGM) and infrared thermography. The interfaces between the PCB and the surrounding air domain are assumed to exhibit perfect thermal contact, establishing a fully coupled conjugate heat transfer framework for the inverse analysis. Unlike the conventional Inverse Heat Conduction Problem (IHCP), which typically only accounts for conduction within solid domains, the present ICHTP formulation requires the simultaneous solution of the governing continuity, momentum, and energy equations in the air domain, along with the heat conduction equation in the chips and PCB. This coupling introduces substantial computational complexity due to the nonlinear interaction between convective and conductive heat transfer mechanisms, as well as the sensitivity of the inverse solution to measurement uncertainties. The numerical simulations are conducted first with error-free measurement data and an inlet velocity of uin = 4 m/s; the recovered heat-sources exhibit excellent agreement with the true values. The computed average errors for the estimated temperatures ERR1 and estimated heat sources ERR2 are as low as 0.0031% and 1.87%, respectively. The accuracy of the estimated heat sources is then experimentally validated under various prescribed inlet air velocities. During experimental verification at an inlet velocity of 4 m/s, the corresponding ERR1 and ERR2 values are obtained as 0.91% and 3.34%, while at 6 m/s, the values are 0.86% and 2.81%, respectively. Compared with the numerical results, the accuracy of the experimental estimations decreases noticeably. This discrepancy arises because the numerical simulations are free from measurement noise, whereas experimental data inherently include uncertainties due to thermal picture resolutions, environmental fluctuations, and other uncontrollable factors. These results highlight the inherent challenges associated with inverse problems and underscore the critical importance of obtaining precise and reliable temperature measurements to ensure accurate heat source estimation. Full article
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