Results 11 to 20 of about 20,710 (241)

Exact controllability problem of a wave equation in non-cylindrical domains

open access: yesElectronic Journal of Differential Equations, 2015
Let $\alpha: [0, \infty)\to(0, \infty)$ be a twice continuous differentiable function which satisfies that $\alpha(0)=1$, $\alpha'$ is monotone and ...
Hua Wang, Yijun He, Shengjia Li
doaj   +2 more sources

An extension of Rothe’s method to non-cylindrical domains [PDF]

open access: yesApplications of Mathematics, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kuliev, Komil, Persson, Lars-Erik
openaire   +2 more sources

Throat length effect on the flow patterns in off-design conical nozzles [PDF]

open access: yesFME Transactions, 2022
In the present work, a flow field study was performed for off-design conical nozzles with non-circular cylindrical throat sections such as those found in experimental sounding rocket motor applications. The flow field was simulated with the RANS model in
Tolentilo San Luis, Mirez Jorge
doaj   +1 more source

New energy effect in non-cylindrical domains with a thermally insulated moving boundary

open access: yesРоссийский технологический журнал, 2023
Objectives. To develop mathematical model representations of the energy effect in non-cylindrical domains having a thermally insulated moving boundary; to introduce a new boundary condition for thermal insulation of a moving boundary both for locally ...
E. M. Kartashov
doaj   +1 more source

Magnetic Configurations in Modulated Cylindrical Nanowires

open access: yesNanomaterials, 2021
Cylindrical magnetic nanowires show great potential for 3D applications such as magnetic recording, shift registers, and logic gates, as well as in sensing architectures or biomedicine.
Cristina Bran   +5 more
doaj   +1 more source

Exact Null Controllability of a One-Dimensional Wave Equation with a Mixed Boundary

open access: yesMathematics, 2023
In this paper, exact null controllability of one-dimensional wave equations in non-cylindrical domains was discussed. It is different from past papers, as we consider boundary conditions for more complex cases.
Lizhi Cui, Jing Lu
doaj   +1 more source

Steady state non-Newtonian flow with strain rate dependent viscosity in domains with cylindrical outlets to infinity

open access: yesNonlinear Analysis, 2021
The paper deals with a stationary non-Newtonian flow of a viscous fluid in unbounded domains with cylindrical outlets to infinity. The viscosity is assumed to be smoothly dependent on the gradient of the velocity.
Grigory Panasenko   +2 more
doaj   +1 more source

Thermal analysis on mutual interaction of temperature stratification and solutal stratification in the presence of non-linear thermal radiations

open access: yesCase Studies in Thermal Engineering, 2022
The mutual interaction of thermal stratification and solutal stratification in mixed convection flow regimes claims many thermal engineering standpoints in daily life and so holds the interest of researchers in the thermal science of fluid flows.
Khalil Ur Rehman, Wasfi Shatanawi
doaj   +1 more source

Weak solutions of parabolic equations in non-cylindrical domains [PDF]

open access: yesProceedings of the American Mathematical Society, 1997
In their classical work, Ladyzhenskaya and Ural ′ ’
Brown, Russell M.   +2 more
openaire   +2 more sources

Logarithmic wave equations in non-cylindrical domains

open access: yes, 2021
This paper is devoted to studying a type of logarithmic wave equation in non-cylindrical domains. Firstly, by the penalty method, we prove the existence of weak solutions to such kind of equations. Secondly, different from the dissipative wave equation, the energy defined in this problem is not always positive.
openaire   +2 more sources

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