Suchergebnisse - Visualization algorithms applied to problems in fluid mechanics

Hidden fluid mechanics: Learning velocity and pressure fields from flow visualizations von Raissi, Maziar, Yazdani, Alireza, Karniadakis, George Em

“… We addressed this problem by developing hidden fluid mechanics (HFM), a physics-informed deep-learning framework capable of encoding the Navier-Stokes equations …”
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Flow over an espresso cup: inferring 3-D velocity and pressure fields from tomographic background oriented Schlieren via physics-informed neural networks von Cai, Shengze, Wang, Zhicheng, Fuest, Frederik, Jeon, Young Jin, Gray, Callum, Karniadakis, George Em

“… , and is particularly useful for instantaneous flow visualizations of complex fluid dynamics problems. We propose a new method based on physics-informed neural networks …”
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Multidimensional scaling and visualization of patterns in distribution of nontrivial zeros of the zeta-function von Machado, J. Tenreiro, Luchko, Yuri

“… ) algorithm and computational visualization features. The nontrivial zeros of the Riemann zeta-function as well as the vectors with several neighboring zeros are interpreted as the basic elements (points or objects) of a data set …”
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Wavelet adaptive proper orthogonal decomposition for large-scale flow data von Krah, Philipp, Engels, Thomas, Schneider, Kai, Reiss, Julius

“… The proper orthogonal decomposition (POD) is a powerful classical tool in fluid mechanics used, for instance, for model reduction and extraction of coherent flow features …”
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Fast and robust volumetric refractive index measurement by unified background-oriented schlieren tomography von Grauer, Samuel J., Steinberg, Adam M.

“… BOS is a 2D flow visualization technique that renders light deflections due to refraction in the fluid …”
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An efficient parallelization technique for the coupled problems of fluid, gas and plasma mechanics in the grid environment von Zinchenko, Andrii, Fernandez-Gamiz, Unai, Redchyts, Dmytro, Gorna, Olga, Bilousova, Tetiana

“… The development of efficient parallelization strategies for numerical simulation methods of fluid, gas and plasma mechanics remains one of the key technology challenges in modern scientific computing …”
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Some multilevel decoupled algorithms for a mixed navier-stokes/darcy model von Cai, Mingchao, Huang, Peiqi, Mu, Mo

“… These algorithms are based on either successively or parallelly solving two linear subdomain problems after solving a coupled nonlinear coarse grid problem …”
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Molecular Dynamics Calculations of Asymptotic Series Coefficients for Stress Fields von Mushankova, K. A., Stepanova, L. V.

“… This paper presents an overdeterministic algorithm for constructing the asymptotics of the stress field near the tip of a nanocrack in an anisotropic linear elastic body with cubic symmetry …”
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Deep learning of vortex-induced vibrations von Raissi, Maziar, Wang, Zhicheng, Triantafyllou, Michael S., Karniadakis, George Em

“… This is an inverse problem that is not straightforward to solve using standard computational fluid dynamics methods, especially since no information is provided for the pressure …”
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Detection of Lagrangian Coherent Structures in the SPH framework von Sun, P.N., Colagrossi, A., Marrone, S., Zhang, A.M.

“… Thanks to the Lagrangian character of SPH, the trajectory of each fluid particle is explicitly tracked over the whole simulation …”
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Three-dimensional particle tracking velocimetry algorithm based on tetrahedron vote von Cui, Yutong, Zhang, Yang, Jia, Pan, Wang, Yuan, Huang, Jingcong, Cui, Junlei, Lai, Wing T.

“… A particle tracking velocimetry algorithm based on tetrahedron vote, which is named TV-PTV, is proposed to overcome the limited selection problem of effective algorithms for 3D flow visualisation …”
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Domain decomposition and model reduction for the numerical solution of PDE constrained optimization problems with localized optimization variables von Antil, Harbir, Heinkenschloss, Matthias, Hoppe, Ronald H. W., Sorensen, Danny C.

“… We introduce a technique for the dimension reduction of a class of PDE constrained optimization problems governed by linear time dependent advection diffusion equations for which the …”
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Highly interactive computational steering for coupled 3D flow problems utilizing multiple GPUs: Towards intuitive desktop environments for interactive 3D fluid structure interaction von Linxweiler, Jan, Krafczyk, Manfred, Tölke, Jonas

“… Most computational fluid dynamics (CFD) simulations require massive computational power which is usually provided by traditional High Performance Computing (HPC) environments …”
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Estimating density, velocity, and pressure fields in supersonic flows using physics-informed BOS von Molnar, Joseph P, Venkatakrishnan, Lakshmi, Schmidt, Bryan E, Sipkens, Timothy A, Grauer, Samuel J

“… BOS is a quantitative fluid visualization technique that is commonly used to characterize compressible flow …”
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Dynamics of motion of a pair of particles in a supersonic flow von Utkin, P. S., Sidorenko, D. A., Boiko, V. M.

“… The problem of motion dynamics of two particles in a supersonic flow behind an incident shock wave was considered numerically and experimentally …”
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MHT-X: offline multiple hypothesis tracking with algorithm X von Zvejnieks, Peteris, Birjukovs, Mihails, Klevs, Martins, Akashi, Megumi, Eckert, Sven, Jakovics, Andris

“… An efficient and versatile implementation of offline multiple hypothesis tracking with Algorithm X for optimal association search was developed using Python …”
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On the modeling and simulation of non-hydrostatic dam break flows von Caboussat, Alexandre, Boyaval, Sébastien, Masserey, Alexandre

“… –Stokes equations coupled with a volume-of-fluid approach. The numerical results obtained for a variety of benchmark problems show the validity of the numerical …”
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Improved two-color LIF thermometry for gas–liquid system by optical flow algorithm von Zhou, Jiangning, Yang, Wenbin, Yin, Yimin, Zhou, Quan, Chen, Shuang, Du, Yu, Mu, Jinhe

“…  ℃ maximum measurement error in 20.0–100.0 ℃). According to this problem, a nonlinear image registration method based on optical flow algorithm …”
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Substructuring of a Signorini-type problem and Robin’s method for the Richards equation in heterogeneous soil von Berninger, Heiko, Sander, Oliver

“… We use these interface conditions in a heterogeneous problem with piecewise constant soil parameters, which we address by the Robin …”
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3D printing CFD simulation results using structural mechanics von Takeda, Hiroki, Ohtake, Yutaka, Suzuki, Hiromasa

“… Good visualizations of computational fluid dynamics (CFD) results are key to making the best use …”
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