Results 11 to 20 of about 4,129,928 (338)
This paper presents a complete derivation and design of a physics-informed neural network (PINN) applicable to solve initial and boundary value problems described by linear ordinary differential equations. The objective with this technical note is not to
Andreas Almqvist
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Molecular gas film lubrication (MGL) equation, which is derived based on linearized Boltzmann equation, is the reliable means to analyze the molecular gas flow in the narrow channel, whose thickness is as thin as the molecular mean free pass. Though, the
Jun-ichi ICHIHARA
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Flows of incompressible Navier–Stokes (Newtonian) fluids between adjacent surfaces are encountered in numerous practical applications, such as seal leakage and bearing lubrication.
Andreas Almqvist +3 more
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Local correlation-based transition models for high-Reynolds-number wind-turbine airfoils [PDF]
Modern wind-turbine airfoil design requires robust performance predictions for varying thicknesses, shapes, and appropriate Reynolds numbers. The airfoils of current large offshore wind turbines operate with chord-based Reynolds numbers in the range of 3–
Y. S. Jung +3 more
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Tribotronic Analysis of Internal Combustion Engine Compression Ring
The influence of operating conditions of the compression rings on the engine power losses affects confoundedly the design of the Internal Combustion Engines (ICEs).
Konstantinos Tsatsoulis +2 more
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The Compressible Reynolds Lubrication Equation [PDF]
We give a general derivation of the Reynolds lubrication equation. We then state and sketch the proofs of some of the authors’ recent results concerning the existence, uniqueness, and qualitative behavior of solutions to the compressible Reynolds lubrication equation. Finally, we give an application of our results to a problem in elastohydrodynamics.
Chipot, M, Luskin, M
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Most of the problems in lubrication are studied within the context of Reynolds’ equation, which can be derived by writing the incompressible Navier-Stokes equation in a dimensionless form and neglecting terms which are small under the assumption that the
A. Almqvist +3 more
semanticscholar +1 more source
An adaptive finite element method for the inequality-constrained Reynolds equation [PDF]
We present a stabilized finite element method for the numerical solution of cavitation in lubrication, modeled as an inequality-constrained Reynolds equation. The cavitation model is written as a variable coefficient saddle-point problem and approximated
T. Gustafsson +3 more
semanticscholar +1 more source
On account of varying tiny cross-sectional clearance and fairly high bearing speed, the feature of lubricant gas of gas-lubricated journal bearings (GLJBs) is a complex multiscale problem.
Yulong Jiang +5 more
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Estimation of the Just Suspension Speed in Solid-Liquid Agitated Vessels With Various Impellers
The current study proposes a new model equation that takes into account the effects of impeller Reynolds number, particle Reynolds number, and particle concentration on the just suspension state.
Masao Aida, Yuya Murakami, Atsushi Shono
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