Results 31 to 40 of about 4,908,866 (317)

On the dual variable of the Cauchy stress tensor in isotropic finite hyperelasticity [PDF]

open access: yes, 2007
If the constitutive law linking the second Piola-Kirchhoff stress tensor and the right Cauchy-Green strain tensor derives from a potential, then the Cauchy stress tensor and the logarithm of the left Cauchy-Green strain tensor are linked by a related ...
Blume   +17 more
core   +2 more sources

Neural network models for the anisotropic Reynolds stress tensor in turbulent channel flow [PDF]

open access: yes, 2019
Reynolds-averaged Navier-Stokes (RANS) equations are presently one of the most popular models for simulating turbulence. Performing RANS simulation requires additional modelling for the anisotropic Reynolds stress tensor, but traditional Reynolds stress ...
R. Fang   +3 more
semanticscholar   +1 more source

Kerr-Newman stress-tensor from minimal coupling [PDF]

open access: yesJournal of High Energy Physics, 2019
In this paper, we demonstrate that at leading order in post Minkowskian (PM) expansion, the stress-energy tensor of Kerr-Newman black hole can be recovered to all orders in spin from three sets of minimal coupling: the electric and gravitational minimal ...
M. Chung, Yu-tin Huang, Jung-Wook Kim
semanticscholar   +1 more source

NUMERICAL SIMULATION OF VISCOPRELIC LIQUID FLOW WITH INTEGRAL RHEOLOGICAL LAW IN FLAT OR CYLINDRICAL CHANNELS

open access: yesКомпютерні системи та інформаційні технології, 2020
The viscoelastic liquid may be a melt of a polymeric material from a rheological point of view. Therefore, emphasis will place on the practical application of the results of the solution of the mathematical model of the flow of viscoelastic fluid in ...
SYNYUK O.
doaj   +1 more source

Method to compute the stress-energy tensor for the massless spin 1/2 field in a general static spherically symmetric spacetime [PDF]

open access: yes, 2002
A method for computing the stress-energy tensor for the quantized, massless, spin 1/2 field in a general static spherically symmetric spacetime is presented. The field can be in a zero temperature state or a non-zero temperature thermal state.
A. Folacci   +60 more
core   +2 more sources

Unifying Theory for Casimir Forces: Bulk and Surface Formulations

open access: yesUniverse, 2021
The principles of the electromagnetic fluctuation-induced phenomena such as Casimir forces are well understood. However, recent experimental advances require universal and efficient methods to compute these forces.
Giuseppe Bimonte, Thorsten Emig
doaj   +1 more source

Data-driven modelling of the Reynolds stress tensor using random forests with invariance [PDF]

open access: yesComputers & Fluids, 2018
A novel machine learning algorithm is presented, serving as a data-driven turbulence modeling tool for Reynolds Averaged Navier-Stokes (RANS) simulations.
Mikael L. A. Kaandorp, R. Dwight
semanticscholar   +1 more source

Molecular Dynamics of Solids at Constant Pressure and Stress Using Anisotropic Stochastic Cell Rescaling

open access: yesApplied Sciences, 2022
Molecular dynamics simulations of solids are often performed using anisotropic barostats that allow the shape and volume of the periodic cell to change during the simulation.
Vittorio Del Tatto   +3 more
doaj   +1 more source

Stress-Energy-Momentum Tensors and the Belinfante-Rosenfeld Formula [PDF]

open access: yes, 1992
We present a new method of constructing a stress-energy-momentum tensor for a classical field theory based on covariance considerations and Noether theory.
Gotay, Mark J., Marsden, Jerrold E.
core   +3 more sources

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