28 papers · ranked by Valyu relevance
Xihaier Luo, Ahsan Kareem, Yihui Ren, Wei Xu + 1 more
This work proposes a deep learning-based emulator for the efficient computation of the coupled viscous Burgers' equation with random initial conditions. In a departure from traditional data-driven deep learning approaches, the proposed emulator does not require a classical numerical solver to collect training data.…
James M. Osborne
In recent years, multi–cellular models, where cells are represented as individual interacting entities, are becoming ever popular. This has led to a proliferation of novel methods and simulation tools. The first aim of this paper is to review the numerical methods utilised by multi–cellular modelling tools and to…
Qin, Shijie, Liao, Shijun
Turbulence holds immense importance across various scientific and engineering disciplines. The direct numerical simulation (DNS) of turbulence proposed by Orszag in 1970 is a milestone in fluid mechanics, which began an era of numerical experiment for turbulence. Many researchers have reported that turbulence should be…
Enran Hou, Fuzhang Wang, Essam Roshdy El-Zahar, Umar Nazir + 2 more
'Muhammad Sohail' 'Jinyuan Qian'] Engineers, scientists and mathematicians are greatly concerned about the thermal stability/instability of any physical system. Current contemplation discusses the role of the Soret and Dufour effects in hydro-magnetized Carreau-Yasuda liquid passed over a permeable stretched surface.…
Lionel Dupuy, Matthias Mimault, Mariya Ptashnyk
Movement is critical for bacterial species inhabiting soils because nutrient availability is limited and heterogeneously distributed both in space and time. Recent live microscopy experiments show that bacteria form flocks when navigating through porous medium, and complex cell-cell interactions may be required to…
Bagh Ali, Imran Siddique, Sajjad Hussain, Liaqat Ali + 1 more
'Dumitru Baleanu'] This study briefings the roles of Coriolis, and Lorentz forces on the dynamics of rotating nanofluids flow toward a continuously stretching sheet. The nanoparticles are incorporated because of their unusual qualities like upgrade the thermal transportation, which are very important in heat…
Shejie Qin, Yu Yang, Yongxiang Huang, Xinyu Mei + 2 more
small enough grid spacing and time-step definitely reliable/correct? Authors: ['Shejie Qin' 'Yu Yang' 'Yongxiang Huang' 'Xinyu Mei' 'Lipo Wang' 'Shijun Liao'] Turbulence is strongly associated with the vast majority of fluid flows in nature and industry. Traditionally, results given by the direct numerical simulation…
Imtiaz Ahmad, Ihteram Ali, Rashid Jan, Sahar Ahmed Idris + 2 more
'Mohamed Mousa' 'Muhammad Nadeem'] The study presents a meshless computational approach for simulating the three-dimensional multi-term time-fractional mobile-immobile diffusion equation in the Caputo sense. The methodology combines a stable Crank-Nicolson time-integration scheme with the definition of the Caputo…
Wenqiang Guo, Mikhail Sheremet, Tianbai Xiao, Yuan Hu + 1 more
In this work, the Simpson method is proposed to calculate the interface flux of a discrete unified gas kinetic scheme (DUGKS) according to the distribution function at the node and the midpoint of the interface, which is noted by Simpson-DUGKS. Moreover, the optimized DUGKS and Simpson-DUGKS considering the force term…
Authors not listed
As a prove of concept for experimental geochemistry, an advanced 3D numerical framework, here and after called Digital Twin (DT), of a diffusion experiment conducted at a synchrotron beamline, has been implemented using in-situ measurements data, physics-based modelling, a machine learning (ML) model, and parameter…
A. Abbasi Goodarzi, Maryam Rahimi, MohammadJavad Valizadeh, Fakhteh Ghanbarnejad
'Fakhteh Ghanbarnejad'] Abstract— In dealing with nonlinear systems, it is common to use numerical solutions. Unlike the careful behavior towards the numerical results in chaotic regions, the validity of numerical results in regions of transient chaos might not always be taken into consideration. This article…
Niccolò Tonicello, Rodrigo C. Moura, Guido Lodato, Gianmarco Mengaldo
'Gianmarco Mengaldo'] This study presents a comprehensive spatial eigenanalysis of fully-discrete discontinuous spectral element methods, now generalizing previous spatial eigenanalysis that did not include time integration errors. The influence of discrete time integration is discussed in detail for different explicit…
Małgorzata Borówko
Molecular simulation is one of the fastest growing fields in science. This is connected with the rapid increase of computer efficiency and with the appearance of new, sophisticated simulation methods enabling the modeling of complex systems while seamlessly bridging different length and time scales. Now, it is possible…
Koki Ide, Tetsuro Tsuji, Takayuki Suzuki, Kenji Setoura
Microscale thermophoresis (MST) has garnered significant attention as a manipulation method for chemical species ranging from nanometers to micrometers in liquids. Despite the substantial increase in experimental reports on MST, a comprehensive theoretical model remains elusive due to its intricate mechanism.…
Marius-F. Danca, Quanmin Zhu, Giuseppe Fusco, Jing Na + 1 more
In this paper, the solutions of a class of switch dynamical systems are investigated. The right-hand side of the underlying equations is discontinuous with respect to the state variable. The discontinuity is represented by jump discontinuous functions such as signum or Heaviside functions. In this paper, a novel…
T.J. Sego, James P. Sluka, Herbert M. Sauro, James A. Glazier
Tissue Forge is an open-source interactive environment for particle-based physics, chemistry and biology modeling and simulation. Tissue Forge allows users to create, simulate and explore models and virtual experiments based on soft condensed matter physics at multiple scales, from the molecular to the multicellular…
Dagmar Zakova, Peter Frolkovic
This study investigates numerical methods to solve nonlinear transport problems characterized by various sorption isotherms with a focus on the Freundlich type of isotherms. We describe and compare second order accurate numerical schemes, focusing on implicit methods, to effectively model transport phenomena without…
Authors not listed
Protein conformational landscapes contain the functionally relevant information useful for understanding biological processes. Mapping out conformational landscapes provides valuable insights into protein behaviors and biological phenomena, and has relevance to therapeutic design. While experimental structural biology…
Authors not listed
The present study investigates the transient 3D numerical prediction of the significance of passive control techniques, using triangular and rectangular span-wise pimples, placed at cambered section at the location 32% chord length from of the nose of the hydrofoil, and combined with a modified finite trailing edge…
Daniel T. Birdsell, Benjamin M. Adams, Jonathan D. Ogland-Hand, Jeffrey M. Bielicki + 2 more
Geothermal electricity generation may play a role in reducing greenhouse gas emissions and addressing climate change in a cost-effective manner. Reservoir equations for pressure and temperature must be coupled to a power cycle model to calculate electricity generation from a geothermal power plant. This work focuses on…
Fauzia Jabeen, Silvana Ilie
Biochemical reaction systems in a cell exhibit a stochastic behaviour, owing to the unpredictable nature of the molecular interactions. The fluctuations at the molecular level may lead to a different behaviour than that predicted by the deterministic model of the reaction rate equations, when some reacting species have…
Janine Egert, Clemens Kreutz
In systems biology, the analysis of complex nonlinear systems faces many methodological challenges. However, the performance evaluation of competing methods is limited by the small amount of publicly available data from biological experiments. Therefore, simulation studies with a realistic representation of the data…
Sibylle Hermann, Jörg Fehr
One goal of Open Science is to promote reusability, which requires understanding and documentation. Reusability spans a spectrum from the straightforward reuse of existing materials to the extraction and adaptation of specific elements, depending on the maturity of the reused research and the research context. Beyond…
Jianan Zeng, Yanbing Zhang, Lei Wu
Multiscale rarefied gas flows with moving boundaries pose significant challenges to the numerical simulation, where the primary difficulties involve robustly managing the mesh movement and ensuring computational efficiency across all flow regimes. Build upon recent advancements of the general synthetic iterative scheme…
Sebastian Persson, Fabian Fröhlich, Stephan Grein, Torkel Loman + 4 more
Dynamic models are useful to study processes ranging from cell signalling to cell differentiation. Common modelling workflows such as model exploration and parameter estimation are computationally demanding. The Julia programming language is a promising tool to address these computational challenges. To evaluate it we…
Authors not listed
Rapid and robust simulation of chemical processes is critical to conduct process design, optimization, techno-economic analysis, and sustainability analysis. Yet, efficiently solving simulation models remains a challenge due to the highly coupled and nonlinear nature of the underlying algebraic equations that capture…
Thaleia Ntiniakou, James Osborne, Jieling Zhao, Jules Dichamp + 30 more
The emergence of virtual human twins (VHT) in biomedical research has sparked interest in multiscale in silico modelling frameworks, particularly in their application bridging cellular to tissue levels. Among the diverse array of multiscale modelling tools, off-lattice center-based agent-based models (CBM) offer a…
Authors not listed
Cavitation, a transient and dynamic phenomenon, significantly impacts the characteristics and performance of hydrofoils across various applications, necessitating effective passive control strategies. This study employs transient numerical simulations to investigate the effectiveness of passive controllers of varying…