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Computation, Volume 11, Issue 7

July 2023 - 26 articles

Cover Story: New analytical solutions of the heat conduction equation obtained via the self-similar Ansatz are presented in cylindrical and spherical coordinates. These solutions are reproduced with high accuracy using recent explicit and unconditionally stable finite difference methods. After this, real experimental data from the literature regarding a heated cylinder are reproduced using explicit numerical methods as well as using the Finite Element Methods (FEM) ANSYS workbench. Convection and nonlinear radiation are also considered on the boundary of the cylinder. The results indicate that the numerical methods have a high accuracy in dealing with cylindrical and spherical bodies; also, the comparison of the temperatures showed that the explicit methods are more accurate than the commercial software. View this paper
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Articles (26)

  • Article
  • Open Access
3 Citations
2,536 Views
25 Pages

Multiobjective Optimization of Fuzzy System for Cardiovascular Risk Classification

  • Hanna C. Villamil,
  • Helbert E. Espitia and
  • Lilian A. Bejarano

Since cardiovascular diseases (CVDs) pose a critical global concern, identifying associated risk factors remains a pivotal research focus. This study aims to propose and optimize a fuzzy system for cardiovascular risk (CVR) classification using a mul...

  • Article
  • Open Access
3 Citations
2,836 Views
18 Pages

Despite low tuberculosis (TB) mortality rates in China, Europe, and the United States, many countries are still struggling to control the epidemic, including India, South Africa, and Algeria. This study aims to contribute to the body of knowledge on...

  • Article
  • Open Access
14 Citations
1,968 Views
19 Pages

This research analyzes electrical distribution networks using renewable generation sources based on photovoltaic (PV) sources and distribution static compensators (D-STATCOMs) in order to minimize the expected annual grid operating costs for a planni...

  • Article
  • Open Access
2,588 Views
16 Pages

Modeling of Heat Flux in a Heating Furnace

  • Augustín Varga,
  • Ján Kizek,
  • Miroslav Rimár,
  • Marcel Fedák,
  • Ivan Čorný and
  • Ladislav Lukáč

Modern heating furnaces use combined modes of heating the charge. At high heating temperatures, more radiation heating is used; at lower temperatures, more convection heating is used. In large heating furnaces, such as pusher furnaces, it is necessar...

  • Article
  • Open Access
39 Citations
4,957 Views
21 Pages

Mathematical Modelling of Tuberculosis Outbreak in an East African Country Incorporating Vaccination and Treatment

  • Kayode Oshinubi,
  • Olumuyiwa James Peter,
  • Emmanuel Addai,
  • Enock Mwizerwa,
  • Oluwatosin Babasola,
  • Ifeoma Veronica Nwabufo,
  • Ibrahima Sane,
  • Umar Muhammad Adam,
  • Adejimi Adeniji and
  • Janet O. Agbaje

In this paper, we develop a deterministic mathematical epidemic model for tuberculosis outbreaks in order to study the disease’s impact in a given population. We develop a qualitative analysis of the model by showing that the solution of the mo...

  • Article
  • Open Access
4 Citations
2,252 Views
18 Pages

Healing patterns are a critical issue that influence the fracture mechanism of self-healing concrete (SHC) structures. Partial healing cracks could happen even during the normal operating conditions of the structure, such as sustainable applied loads...

  • Article
  • Open Access
39 Citations
13,547 Views
17 Pages

Time-series analysis is a widely used method for studying past data to make future predictions. This paper focuses on utilizing time-series analysis techniques to forecast the resource needs of logistics delivery companies, enabling them to meet thei...

  • Article
  • Open Access
3 Citations
2,120 Views
20 Pages

Algebraic Structures Induced by the Insertion and Detection of Malware

  • Agustín Moreno Cañadas,
  • Odette M. Mendez and
  • Juan David Camacho Vega

Since its introduction, researching malware has had two main goals. On the one hand, malware writers have been focused on developing software that can cause more damage to a targeted host for as long as possible. On the other hand, malware analysts h...

  • Article
  • Open Access
5 Citations
3,294 Views
13 Pages

Incremental Learning-Based Algorithm for Anomaly Detection Using Computed Tomography Data

  • Hossam A. Gabbar,
  • Oluwabukola Grace Adegboro,
  • Abderrazak Chahid and
  • Jing Ren

In a nuclear power plant (NPP), the used tools are visually inspected to ensure their integrity before and after their use in the nuclear reactor. The manual inspection is usually performed by qualified technicians and takes a large amount of time (w...

  • Article
  • Open Access
1 Citations
2,055 Views
25 Pages

This paper is devoted to the comparison of discrete velocity models used for simulation of compressible flows with arbitrary specific heat ratios in the lattice Boltzmann method. The stability of the governing equations is analyzed for the steady flo...

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Computation - ISSN 2079-3197Creative Common CC BY license