Results 21 to 30 of about 68,602 (312)

Exact controllability of Galerkin’s approximations of micropolar fluids [PDF]

open access: yesProceedings of the American Mathematical Society, 2009
We consider the nonlinear model describing micropolar fluid in a bounded smooth region of R
Araruna, F. D.   +2 more
openaire   +4 more sources

A Posteriori Error Estimates for a Nonconforming Finite Element Discretization of the Stokes–Biot System

open access: yesDiscrete Dynamics in Nature and Society, 2022
This paper presents an a posteriori error estimator for a (piecewise linear) nonconforming finite element approximation of the problem defining the interaction between a free fluid and poroelastic structure.
Koffi Wilfrid Houédanou
doaj   +1 more source

The Optimal Transportation Meshfree Method for General Fluid Flows and Strongly Coupled Fluid-Structure Interaction Problems [PDF]

open access: yes, 2009
This thesis develops a novel meshfree numerical method for simulating general fluid flows. Drawing from concepts in optimal mass transport theory and in combination with the notion of material point sampling and meshfree interpolation, the optimal ...
Habbal, Feras
core   +1 more source

Inversion for Geofluid Discrimination Based on Poroelasticity and AVO Inversion

open access: yesGeofluids, 2019
Geofluid discrimination plays an important role in reservoir characterization and prospect identification. Compared with other fluid indicators, the effective pore-fluid bulk modulus is more sensitive to the property of fluid contained in reservoirs.
Lingqian Wang   +5 more
doaj   +1 more source

On the Holographic Bound in Newtonian Cosmology

open access: yesEntropy, 2018
The holographic principle sets an upper bound on the total (Boltzmann) entropy content of the Universe at around 10 123 k B ( k B being Boltzmann’s constant).
José M. Isidro   +1 more
doaj   +1 more source

Thermodynamic Properties of the Parabolic-Well Fluid

open access: yesFrontiers in Physics, 2021
The thermodynamic properties of the parabolic-well fluid are considered. The intermolecular interaction potential of this model, which belongs to the class of the so-called van Hove potentials, shares with the square-well and the triangular well ...
Mariano López de Haro   +1 more
doaj   +1 more source

Fluid flow approximation of PEPA models [PDF]

open access: yesSecond International Conference on the Quantitative Evaluation of Systems (QEST'05), 2005
In this paper we present a novel performance analysis technique for large scale systems modelled in the stochastic process algebra PEPA. In contrast to the well-known approach of analysing via continuous time Markov chains, our underlying mathematical representation is a set of coupled ordinary differential equations (ODEs).
openaire   +1 more source

Optimization using surrogate models and partially converged computational fluid dynamics simulations [PDF]

open access: yes, 2006
Efficient methods for global aerodynamic optimization using computational fluid dynamics simulations should aim to reduce both the time taken to evaluate design concepts and the number of evaluations needed for optimization.
Alexander I.J. Forrester   +5 more
core   +1 more source

A data-driven quasi-linear approximation for turbulent channel flow

open access: yes, 2023
A data-driven implementation of a quasi-linear approximation is presented, extending a minimal quasi-linear approximation (MQLA) (Hwang & Ekchardt, J. Fluid Mech., vol. 894, 2020, p. A23) to incorporate non-zero streamwise Fourier modes.
Hwang, Yongyun   +2 more
core   +1 more source

Wave focusing by submerged islands and gravitational analogues

open access: yesPhysical Review Research, 2022
We study water waves propagating over a smooth obstacle in a fluid of varying depth, motivated by the observation that submerged islands in the ocean act as effective lenses that increase the amplitude and destructive power of tsunami waves near focal ...
Theo Torres   +3 more
doaj   +1 more source

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