Results 111 to 120 of about 63,459 (307)

Numerical simulation study on the evolution of the temperature field and frozen wall in fractured rock mass

Deep Underground Science and Engineering, EarlyView.
The evolution of the temperature field and frozen wall under different fracture conditions was examined by an artificial ground freezing‐based thermal‐hydraulic coupled model. It was observed that fracture inclination affects the interaction extent of freezing pipes and fracture, while phase transition extent is the dominant factor for heat transfer in
Chenyi Zhang, Tingting Luo, Tao Zhang, Tao Han, Xiaodong Zhao, Haipeng Li, Yanfei Ma, Faxing Zhang, Madhusudhan Bangalore Narasimha Murthy, Weihao Yang   +9 more
wiley   +1 more source

Impact of Electronic Substitution and Planarization on the Photophysical Properties of 2‐(2′‐Hydroxyphenyl)benzoxazole or 2‐(2′‐Hydroxyphenyl)‐Dimethylindole

European Journal of Organic Chemistry, EarlyView.
We report the synthesis, structural characterization, and photophysical investigation of a series of Excited‐State Intramolecular Proton Transfer‐active HBO and HDMI derivatives. By varying heterocyclic cores, substituents, and ethynyl planarization, we establish structure–property relationships governing fluorescence behavior.
Mathieu Gervais, Timothée Stoerkler, Gilles Ulrich, Pascal Retailleau, Tristan Asset, Adèle D. Laurent, Denis Jacquemin, Julien Massue   +7 more
wiley   +1 more source

A condition for the finite time blow up of the incompressible Navier–Stokes equations in the whole space

Results in Applied Mathematics
This paper is interested in the existence of singularities for solutions of the Navier–Stokes equations in the whole space. We demonstrate the existence of initial data that leads to the unboundedness of the corresponding strong solution within a finite ...
Abdelhafid Younsi
doaj   +1 more source

An optimal order interior penalty discontinuous Galerkin discretization of the compressible Navier-Stokes equations

, 2008
In this article we propose a new symmetric version of the interior penalty discontinuous Galerkin finite element method for the numerical approximation of the compressible Navier-Stokes equations.
Houston, Paul, Hartmann, Ralf
core  

A finite element method for the resolution of the Reduced Navier-Stokes/Prandtl equations

, 2008
A finite element method to solve the bidimensional Reduced Navier-Stokes Prandtl (RNS/P) equations is described. These equations are an asymptotical simplification of the full Navier-Stokes equations, obtained when one dimension of the domain is of one ...
R. Barrenechea, Gabriel, Gabriel R. Barrenechea, Franz Chouly, Barrenechea, Gabriel R., Chouly, F., Chouly, Franz, Barrenechea, G.R.   +6 more
core   +1 more source

Integral representation of a solution to the Stokes-Darcy problem [PDF]

, 2015
With methods of potential theory we develop a representation of a solution of the coupled Stokes-Darcy model in a Lipschitz domain for boundary data in H-1 ...
Medková, Dagmar, Ptashnyk, Mariya, Ptashnyk, Mariya; id_orcid, Werner Varnhorn, Dagmar Medková, Varnhorn, Werner, Mariya Ptashnyk   +6 more
core   +1 more source

Blade Count and Rotational Speed Sensitivity of Vertical‐Axis Turbines Under Guided Vehicle‐Generated Transient Wakes

Energy Science &Engineering, EarlyView.
Passing vehicles generate short‐duration wakes that can be redirected toward a vertical‐axis turbine. The interaction between wake structure, blade count, and rotational speed governs transient torque production. Low‐solidity configurations combined with tuned rotational speed enhance energy extraction under vehicle‐induced gusts.
Aydin Ulus, Stefan Ilie Moldovan
wiley   +1 more source

SOLUSI MODEL LINEAR NAVIER-STOKES-KORTEWEG DI R_+^3 DENGAN SYARAT BATAS SLIP

Jurnal Lebesgue
This article discusses the solution of the linear Navier-Stokes-Korteweg model in  considering slip boundary conditions. This model is often used to describe the two-phase flow of fluids, where there is a phase change at the interface known as the ...
Jihandika Prayugo, Suma Inna, Mahmudi Mahmudi, Nia Damiati   +3 more
doaj   +1 more source

ε-Аpproximation of the temperatures model of inhomogeneous melts with allowance for energy dissipation

Қарағанды университетінің хабаршысы. Математика сериясы, 2018
Accumulated facts and information about the Navier-Stokes equations, together with a large number of experiments and approximate calculations, made it possible to reveal some discrepancies between the mathematical model of a viscous melt and real ...
S.Sh. Kazhikenova, M.I. Ramazanov, A.A. Khairkulova, G.S. Shaikhova   +3 more
doaj   +1 more source

Efficient Algorithms for Solution of the Adjoint Compressible Navier-Stokes Equations with Applications

, 2006
The complete discrete adjoint equations for an unstructured finite volume compressible Navier-Stokes solver are discussed with respect to the memory and time efficient evaluation of their residuals, and their solution.
Brezillon, Joel, Dwight, Richard, Vollmer, Daniel   +2 more
core