Výsledky vyhledávání - "a priori analysis"

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Can flamelet manifolds capture the interactions of thermo-diffusive instabilities and turbulence in lean hydrogen flames? -- An a-priori analysis

Autor: Böttler, Hannes, Kaddar, Driss, Ferraro, Federica, Scholtissek, Arne, Nicolai, Hendrik, Hasse, Christian

Flamelet-based methods are extensively used in modeling turbulent hydrocarbon flames. However, these models have yet to be established for (lean) premixed hydrogen flames. While flamelet models exist for laminar thermo-diffusively unstable hydrogen f

Externí odkaz: http://arxiv.org/abs/2401.01444

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A priori analysis of a tensor ROM for parameter dependent parabolic problems

Autor: Mamonov, Alexander V., Olshanskii, Maxim A.

A space-time-parameters structure of parametric parabolic PDEs motivates the application of tensor methods to define reduced order models (ROMs). Within a tensor-based ROM framework, the matrix SVD - a traditional dimension reduction technique - yiel

Externí odkaz: http://arxiv.org/abs/2311.07883

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Unified a priori analysis of four second-order FEM for fourth-order quadratic semilinear problems

Autor: Carstensen, Carsten, Nataraj, Neela, Remesan, Gopikrishnan C., Shylaja, Devika

A unified framework for fourth-order semilinear problems with trilinear nonlinearity and general source allows for quasi-best approximation with lowest-order finite element methods. This paper establishes the stability and a priori error control in t

Externí odkaz: http://arxiv.org/abs/2305.06171

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Turbulent flame-wall interaction of premixed flames using Quadrature-based Moment Methods (QbMM) and tabulated chemistry: An a priori analysis

Autor: Steinhausen, M., Zirwes, T., Ferraro, F., Popp, S., Zhang, F., Bockhorn, H., Hasse, C.

Publikováno v: Int. J. Heat Fluid Flow 93 (2) (2022) 108913

Presumed probability density function (PDF) and transported PDF methods are commonly applied to model the turbulence chemistry interaction in turbulent reacting flows. However, little focus has been given to the turbulence chemistry interaction PDF c

Externí odkaz: http://arxiv.org/abs/2212.03788

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