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Maria Vasilyeva, Sergei Stepanov, Alexey Sadovski and Stephen Henry
We consider the multispecies model described by a coupled system of diffusion?reaction equations, where the coupling and nonlinearity are given in the reaction part. We construct a semi-discrete form using a finite volume approximation by space. The full...
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Pavel Ryzhakov and Julio Marti
The fractional step method is a technique that results in a computationally-efficient implementation of Navier?Stokes solvers. In the finite element-based models, it is often applied in conjunction with implicit time integration schemes. On the other han...
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Alexander A. Ryabov, Evgeny E. Maslov, Dmitry Y. Strelets and Vladimir G. Slobodchikov
A complex modeling technique is presented in this paper for a numerical analysis of compressed stiffened composite panels with impact damage. The numerical technique is based on the LS-Dyna code application, which simulates both the dynamic deformation o...
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Mohamed F. El-Amin
In the current paper, an iterative algorithm is developed to simulate the problem of two-phase flow with heat transfer in porous media. The convective body force caused by heat transfer is described by Boussinesq approximation throughout with the governi...
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Natalja O. Gordeeva,Ekaterina N. Manaeva,Ilona M. Primak,Irina I. Palasheva
The paper proposes a numerical solution for the mixed problem concerning a three-dimensional heat transfer fractional differential equation, based on the finite difference method. To solve this problem, an explicit difference scheme described in the pape...
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Mohammad Asadzadeh and Larisa Beilina
Stability and convergence analyses for the domain decomposition finite element/finite difference (FE/FD) method are presented. The analyses are developed for a semi-discrete finite element scheme for time-dependent Maxwell?s equations. The explicit finit...
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Chengxi Wu, Yuewei Dai, Liang Shan and Zhiyu Zhu
This paper focuses on developing a data-driven trajectory tracking control approach for autonomous underwater vehicles (AUV) under uncertain external disturbance and time-delay. A novel model-free adaptive predictive control (MFAPC) approach based on a f...
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Yiming Zhu, Dehua Zhou, Yuan Li, Beibei Song and Chuansheng Wang
Recently, significant progress has been made in the field of public key encryption with keyword search (PEKS), with a focus on optimizing search methods and improving the security and efficiency of schemes. Keyword frequency analysis is a powerful tool f...
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Yongmeng Qi, Qiang Li, Zhigang Zhao, Jiahua Zhang, Lingyun Gao, Wu Yuan, Zhonghua Lu, Ningming Nie, Xiaomin Shang and Shunan Tao
Large-scale floods are one of the major events that impact the national economy and people?s livelihood every year during the flood season. Predicting the factors of flood evolution is a worldwide problem. We use the two-dimensional Saint-Venant equation...
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Sascha Bremicker-Trübelhorn and Sigrun Ortleb
The application of partitioned schemes to ?uid?structure interaction (FSI) allows the use of already developed solvers specifically designed for the efficient solution of the corresponding subproblems. In this work, we propose and describe a loosely coup...
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Sascha Bremicker-Trübelhorn and Sigrun Ortleb
The application of partitioned schemes to fluid?structure interaction (FSI) allows the use of already developed solvers specifically designed for the efficient solution of the corresponding subproblems. In this work, we propose and describe a loosely cou...
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Chenyu Liu, Changchuan Xie, Yang Meng and Liuyue Bai
Due to the maneuver and overload requirements of aircraft, it is inevitable that supersonic fins experience high angles of attack (AOAs) and viscous effects at high altitudes. The local piston theory with viscous correction (VLPT) is introduced and modif...
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Angel Golev, Snezhana Hristova and Asen Rahnev
In this paper an algorithm for approximate solving of a boundary value problem for a nonlinear differential equation with a special type of fractional derivative is suggested. This derivative is called a generalized proportional Caputo fractional derivat...
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Petr Fedoseev, Dmitriy Pesterev, Artur Karimov and Denis Butusov
Composition is a powerful and simple approach for obtaining numerical integration methods of high accuracy order while preserving the geometric properties of a basic integrator. Adaptive step size control allows one to significantly increase the performa...
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Vladimir G. Dmitriev, Alexander N. Danilin, Anastasiya R. Popova and Natalia V. Pshenichnova
Adequate mathematical models and computational algorithms are developed in this study to investigate specific features of the deformation processes of elastic rotational shells at large displacements and arbitrary rotation angles of the normal line. A fi...
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Ali Habeeb Askar, Issa Omle, Endre Kovács and János Majár
Based on many previous experiments, the most efficient explicit and stable numerical method to solve heat conduction problems is the leapfrog-hopscotch scheme. In our last paper, we made a successful attempt to solve the nonlinear heat conduction?convect...
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Christos Giannaros, Elissavet Galanaki, Vassiliki Kotroni, Konstantinos Lagouvardos, Christina Oikonomou, Haris Haralambous and Theodore M. Giannaros
The Southeast Mediterranean (SEM) is characterized by increased vulnerability to river/stream flooding. However, impact-oriented, operational fluvial flood forecasting is far away from maturity in the region. The current paper presents the first attempt ...
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Stelios Vavoulogiannis, Theano Iliopoulou, Panayiotis Dimitriadis and Demetris Koutsoyiannis
We investigate the impact of time?s arrow on the hourly streamflow process. Although time asymmetry, i.e., temporal irreversibility, has been previously implemented in stochastics, it has only recently attracted attention in the hydrological literature. ...
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Shuli Sun, Zhihong Gou and Mingguang Geng
Mesh quality can affect both the accuracy and efficiency of numerical solutions. This paper first proposes a geometry-based smoothing and untangling method for 2D meshes based on explicit element geometric transformation and element stitching. A new expl...
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Wei Lin, Cheng Su and Youhong Tang
This paper is devoted to the random vibration analysis of jacket platforms under wave loads using the explicit time-domain approach. The Morison equation is first used to obtain the nonlinear random wave loads, which are discretized into random loading v...
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