Results 21 to 30 of about 3,123,912 (260)

Investigation of the Convergence of a Multi-Grid Algorithm for Solving the Task of Pressure in the Thin Lubricating Film of the Non-Newtonian Fluid

open access: yesMathematics, 2022
The article describes a multi-grid algorithm for integrating the Reynolds equation for hydrodynamic pressures in the lubricating film of a heavy-loaded journal bearing.
Elena Zadorozhnaya   +3 more
doaj   +1 more source

Evaluating the onset conditions of a thermoacoustic Stirling engine loaded with an audio loudspeaker

open access: yesFrontiers in Thermal Engineering, 2023
This paper aims to evaluate the onset conditions of a thermoacoustic Stirling engine loaded with a commercially available audio loudspeaker. The thermoacoustic engine converts supplied heat power into mechanical power in the form of sound, without any ...
Shu-Han Hsu, Chuan-Heng Lai
doaj   +1 more source

Lack of controllability of the heat equation with memory [PDF]

open access: yes, 2012
We consider a model for the heat equation with memory, which has infinite propagation speed, like the standard heat equation. We prove that, in spite of this, for every T > 0 there exist square integrable initial data which cannot be steered to hit zero ...
Andrei Halanay, Pandolfi, Luciano
core   +1 more source

Well-posedness of stochastic heat equation with distributional drift and skew stochastic heat equation [PDF]

open access: yes, 2020
We study stochastic reaction--diffusion equation ∂tut(x)=12∂2xxut(x)+b(ut(x))+W˙t(x),t>0,x∈D where b is a generalized function in the Besov space Bβq,∞(R), D⊂R and W˙ is a space-time white noise on R+×D.
Butkovsky, O.   +8 more
core   +1 more source

Solving the Boltzmann equation deterministically by the fast spectral method : application to gas microflows [PDF]

open access: yes, 2014
Based on the fast spectral approximation to the Boltzmann collision operator, we present an accurate and efficient deterministic numerical method for solving the Boltzmann equation.
Reese, Jason M., Zhang, Yonghao, Wu, Lei
core   +3 more sources

Analytical Solution of the Problem of Symmetric Thermally Stressed State of Thick Plates Based on the 3D Elasticity Theory [PDF]

open access: yesJournal of Mechanical Engineering, 2021
An important place among thermoelasticity problems is occupied by the plane elasticity problem obtained from the general three-dimensional problem after using plane stress state hypotheses for thin plates. In the two-dimensional formulation, this problem
Viktor P. Revenko
doaj   +1 more source

A Development of Heating and Cooling Load Prediction Equations for Office Buildings in Korea [PDF]

open access: yesJournal of Asian Architecture and Building Engineering, 2014
The study intends to develop energy load prediction equations which can be easily used to estimate the energy consumption of office buildings in the central climatic zone in Korea during the early ...
Kang, Hae Jin, Rhee, Eon Ku
openaire   +1 more source

Experimental determination of natural convection heat transfer coefficients in an attic shaped enclosure [PDF]

open access: yes, 2010
Heat transfer by natural convection in triangular enclosures is an area of significant importance in applications such as the design of greenhouses, attics and solar water heaters.
Carson, James K.   +5 more
core   +1 more source

Two-way shape memory effect of Ni50.1Mn24.1Ga20.3 Fe5.5 shape memory alloy polycrystalline fiber

open access: yesCailiao gongcheng, 2021
Polycrystalline Ni-Mn-Ga-Fe fibers were prepared by melt-extraction technique. The internal stress and defects introduced by rapid solidification were modified by step-wise chemical ordering annealing.
LIU Yan-fen   +7 more
doaj   +1 more source

The radial integration boundary integral and integro-differential equation methods for numerical solution of problems with variable coefficients [PDF]

open access: yes, 2012
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.The boundary element method (BEM) has become a powerful method for the numerical solution of boundary-value problems (BVPs), due to its ability (at least ...
Al-Jawary, Majeed
core   +6 more sources

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