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Computation, Volume 12, Issue 7

2024 July - 20 articles

Cover Story: Hypersonic flight in high altitudes poses unique challenges to aerodynamic efficiency and thermal management. To address these challenges, a waverider optimized for 90 km altitude and Mach 7 was designed and simulated. To analyze aerodynamic performance and heat transfer under rarefied gas conditions, the direct simulation Monte Carlo (DSMC) method was used. In this framework, the waverider's design focuses on efficient flight dynamics and thermal management. Simulations reveal a good flight performance at the design conditions, with critical insights into aerodynamic efficiency and heat flux. The results highlight the waverider's potential for high-speed, high-altitude travel, contributing to advancements in hypersonic vehicle technology and relevant space applications. View this paper
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Articles (20)

  • Article
  • Open Access
2 Citations
1,802 Views
15 Pages

Moving high-performance computing (HPC) applications from HPC clusters to cloud computing clusters, also known as the HPC cloud, has recently been proposed by the HPC research community. Migrating these applications from the former environment to the...

  • Article
  • Open Access
1 Citations
1,899 Views
12 Pages

Mathematical Modeling of the Heat Transfer Process in Spherical Objects with Flat, Cylindrical and Spherical Defects

  • Pavel Balabanov,
  • Andrey Egorov,
  • Alexander Divin,
  • Sergey Ponomarev,
  • Victor Yudaev,
  • Sergey Baranov and
  • Huthefa Abu Zetoonh

This paper proposes a method for determining the optimal parameters for the thermal testing of plant tissues of fruits and vegetables containing surface and subsurface defects in the form of areas of plant tissues with different thermophysical charac...

  • Article
  • Open Access
1 Citations
1,422 Views
11 Pages

Modeling the Properties of Magnetostrictive Elements Using Quantum Emulators

  • Edvard Karpukhin,
  • Alexey Bormotov and
  • Luiza Manukyan

The article discusses mathematical and numerical methods for modeling magnetostrictive multielectronic systems based on a combination of quantum and classical methods. The algorithm development suitable for the investigation of magnetostrictive pheno...

  • Article
  • Open Access
2 Citations
2,477 Views
25 Pages

Natural Convection Fluid Flow and Heat Transfer in a Valley-Shaped Cavity

  • Sidhartha Bhowmick,
  • Laxmi Rani Roy,
  • Feng Xu and
  • Suvash C. Saha

The phenomenon of natural convection is the subject of significant research interest due to its widespread occurrence in both natural and industrial contexts. This study focuses on investigating natural convection phenomena within triangular enclosur...

  • Article
  • Open Access
5 Citations
2,224 Views
11 Pages

Metal-mediated base pairs in DNA double helix molecules open up broad opportunities for biosensors based on DNA clusters with silver due to their low toxicity and applicability in drug design. Despite intensive experimental and computational research...

  • Article
  • Open Access
20 Citations
1,812 Views
16 Pages

Fractional-Order Degn–Harrison Reaction–Diffusion Model: Finite-Time Dynamics of Stability and Synchronization

  • Ma’mon Abu Hammad,
  • Issam Bendib,
  • Waseem Ghazi Alshanti,
  • Ahmad Alshanty,
  • Adel Ouannas,
  • Amel Hioual and
  • Shaher Momani

This study aims to address the topic of finite-time synchronization within a specific subset of fractional-order Degn–Harrison reaction–diffusion systems. To achieve this goal, we begin with the introduction of a novel lemma specific for...

  • Review
  • Open Access
3,700 Views
38 Pages

Computational Fluid Dynamics-Based Systems Engineering for Ground-Based Astronomy

  • Konstantinos Vogiatzis,
  • George Angeli,
  • Gelys Trancho and
  • Rod Conan

This paper presents the state-of-the-art techniques employed in aerothermal modeling to respond to the current observatory design challenges, particularly those of the next generation of extremely large telescopes (ELTs), such as the European ELT, th...

  • Article
  • Open Access
1,453 Views
18 Pages

In this article, we study the semi-linear two-dimensional reaction–diffusion equation with Dirichlet boundaries. A reliable numerical scheme is designed, coupling the nonstandard finite difference method in the time together with the Galerkin i...

  • Article
  • Open Access
2 Citations
2,032 Views
14 Pages

Hybrid Nanofluid Flow over a Shrinking Rotating Disk: Response Surface Methodology

  • Rusya Iryanti Yahaya,
  • Norihan Md Arifin,
  • Ioan Pop,
  • Fadzilah Md Ali and
  • Siti Suzilliana Putri Mohamed Isa

For efficient heating and cooling applications, minimum wall shear stress and maximum heat transfer rate are desired. The current study optimized the local skin friction coefficient and Nusselt number in Al2O3-Cu/water hybrid nanofluid flow over a pe...

  • Article
  • Open Access
2 Citations
5,185 Views
24 Pages

This work investigates the aerodynamic performance of a hypersonic waverider designed to operate at Mach 7, focusing on optimizing its design through advanced computational methods. Utilizing the Direct Simulation Monte Carlo (DSMC) method, the three...

  • Article
  • Open Access
2 Citations
2,171 Views
24 Pages

Quantifying the Health–Economy Trade-Offs: Mathematical Model of COVID-19 Pandemic Dynamics

  • Dhika Surya Pangestu,
  • Sukono,
  • Nursanti Anggriani and
  • Najib Majdi Yaacob

The COVID-19 pandemic has presented a complex situation that requires a balance between control measures like lockdowns and easing restrictions. Control measures can limit the spread of the virus but can also cause economic and social issues. Easing...

  • Article
  • Open Access
2,288 Views
15 Pages

To enhance air–fuel mixing and turbulence during combustion, spark ignition internal combustion engines commonly employ tumble vortices of the charge inside the cylinder. The intake phase primarily dictates the generated tumble, which is influe...

  • Brief Report
  • Open Access
5 Citations
3,524 Views
10 Pages

Minimizing Cohort Discrepancies: A Comparative Analysis of Data Normalization Approaches in Biomarker Research

  • Alisa Tokareva,
  • Natalia Starodubtseva,
  • Vladimir Frankevich and
  • Denis Silachev

Biological variance among samples across different cohorts can pose challenges for the long-term validation of developed models. Data-driven normalization methods offer promising tools for mitigating inter-sample biological variance. We applied seven...

  • Article
  • Open Access
1,661 Views
20 Pages

In the present article, we extend the results of the neural network interpolation operators activated by smooth ramp functions proposed by Yu (Acta Math. Sin.(Chin. Ed.) 59:623-638, 2016). We give different results from Yu (Acta Math. Sin.(Chin. Ed.)...

  • Article
  • Open Access
1 Citations
2,101 Views
21 Pages

Novel Methods for Synthesizing Self-Checking Combinational Circuits by Means of Boolean Signal Correction and Polynomial Codes

  • Dmitry V. Efanov,
  • Ruslan B. Abdullaev,
  • Dmitry G. Plotnikov,
  • Marina V. Bolsunovskaya,
  • Alexey S. Odoevsky and
  • Georgy S. Vasilyanov

This paper proposes the use of a polynomial code for synthesizing self-checking digital devices. The code is chosen for its error detection characteristics in data symbols and is used for Boolean signals correction in embedded control circuits. In pr...

  • Article
  • Open Access
2 Citations
2,396 Views
19 Pages

In order to carry out mathematical modeling of the drug particles or drop movement in the human respiratory system, an approach to reverse prototyping of the studied areas based on the medical data (computed tomography) results is presented. To adapt...

  • Article
  • Open Access
7 Citations
2,751 Views
15 Pages

Tri-n-butyl phosphate (TBP) is essential in the chemical industry for dissolving and purifying various inorganic acids and metals, especially in hydrometallurgical processes. Recent advancements suggest that machine learning can significantly improve...

  • Article
  • Open Access
1 Citations
17,553 Views
22 Pages

Candlestick Pattern Recognition in Cryptocurrency Price Time-Series Data Using Rule-Based Data Analysis Methods

  • Illia Uzun,
  • Mykhaylo Lobachev,
  • Vyacheslav Kharchenko,
  • Thorsten Schöler and
  • Ivan Lobachev

In the rapidly evolving domain of cryptocurrency trading, accurate market data analysis is crucial for informed decision making. Candlestick patterns, a cornerstone of technical analysis, serve as visual representations of market sentiment and potent...

  • Review
  • Open Access
6 Citations
6,856 Views
22 Pages

Road accidents are on the rise worldwide, causing 1.35 million deaths per year, thus encouraging the search for solutions. The promising proposal of autonomous vehicles stands out in this regard, although fully automated driving is still far from bei...

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Computation - ISSN 2079-3197