Finite element approximation of the viscoelastic flow problem: a non-residual based stabilized formulation [PDF]
, 2017 In this paper, a three-field finite element stabilized formulation for the incompressible viscoelastic fluid flow problem is tested numerically. Starting from a residual based formulation, a non-residual based one is designed, the benefits of which are ...
Castillo del Barrio, Ernesto +1 more
core +3 more sources
Hydrogeological structure model of the fault zone in the karst area of north China
Carsologica Sinica, 2022 The fault zone has a controlling effect on the mechanical properties and fluid flow characteristics of the crust. It is an extensively distributed and very important structural pattern in the upper crust, and widely participates in the crustal activity ...
Yuanqing LIU +6 more
doaj +1 more source
Geometry aware physics informed neural network surrogate for solving Navier–Stokes equation (GAPINN)
Advanced Modeling and Simulation in Engineering Sciences, 2022 Many real world problems involve fluid flow phenomena, typically be described by the Navier–Stokes equations. The Navier–Stokes equations are partial differential equations (PDEs) with highly nonlinear properties. Currently mostly used methods solve this
Jan Oldenburg +4 more
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The Use of the k-ω SST Turbulence Model for Mathematical Modeling of Jet Fire
Safety & Fire Technology, 2022 Aim: The purpose of this study is to verify the usability of the k-ω SST turbulence model for the description of the combustion process during a vertical propane jet fire.
Jarosław Tępiński, Wojciech Klapsa
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Measurements of the Solid-body Rotation of Anisotropic Particles in 3D Turbulence [PDF]
, 2014 We introduce a new method to measure Lagrangian vorticity and the rotational dynamics of anisotropic particles in a turbulent fluid flow. We use 3D printing technology to fabricate crosses (two perpendicular rods) and jacks (three mutually perpendicular ...
Kramel, Stefan +4 more
core +1 more source
Assessment of RANS turbulence models and Zwart cavitation model empirical coefficients for the simulation of unsteady cloud cavitation [PDF]
, 2019 The numerical simulation of unsteady cavitation flows is sensitive to the selected models and associated parameters. Consequently, three Reynolds Average Navier-Stokes (RANS) turbulence models and the Zwart cavitation model were selected to assess their ...
Escaler Puigoriol, Francesc Xavier +1 more
core +2 more sources
Predictions for Unsteady Flow Fields With Deep Learning Models of LSTM and GRU
IEEE AccessDeep learning methods based on time series prediction are widely applied to solving fluid dynamics problems. However, the application characteristics of Long Short-Term Memory (LSTM) and Gate Recurrent Unit (GRU) in fluid mechanics are lacking in the ...
Zhang Xing-Wei +4 more
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PyFrac: A planar 3D hydraulic fracture simulator
, 2020 Fluid driven fractures propagate in the upper earth crust either naturally or in response to engineered fluid injections. The quantitative prediction of their evolution is critical in order to better understand their dynamics as well as to optimize their
Lecampion, Brice, Zia, Haseeb
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Columnar structure formation of a dilute suspension of settling spherical particles in a quiescent fluid [PDF]
, 2016 The settling of heavy spherical particles in a column of quiescent fluid is investigated. The performed experiments cover a range of Galileo numbers ($110 \leq \text{Ga} \leq 310$) for a fixed density ratio of $\Gamma = \rho_p/\rho_f = 2.5$.
Barois, Thomas +8 more
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Analysis of free-field pressure sensor laying mechanism design in anti-shock test of warship
Zhongguo Jianchuan Yanjiu, 2019 [Objectives]In order to solve the problem of free-field pressure sensor laying in dynamic anti-shock test of warship,[Methods]based on the theory of computational multi-body dynamics and fluid dynamics,the laying mechanism of free-field pressure sensor ...
Gao Haopeng
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