Results 81 to 90 of about 47,981 (273)

Numerical and experimental study on P‐wave propagation across a rock joint with different orientations

open access: yesDeep Underground Science and Engineering, EarlyView.
Joint orientation significantly affects P‐wave velocity, with the highest velocity at zero‐degree angles, decreasing to 30° as the angle increases. The velocity increases slightly from 30 to 45 degrees but sharply decreases from 45 to 90 degrees. Abstract Determination of the required parameters in different science contexts using the ultrasonic wave ...
Yaghoob Zarei   +4 more
wiley   +1 more source

Unsteady Sisko magneto-nanofluid flow with heat absorption and temperature dependent thermal conductivity: A 3D numerical study

open access: yesResults in Physics, 2018
The impact of temperature dependent thermal conductivity and convective surface conditions on unsteady 3D Sisko nanofluid flow over a stretching surface is studied in the presence of heat generation/absorption and magnetic field.
Masood Khan   +2 more
doaj   +1 more source

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

open access: yesDeep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu   +8 more
wiley   +1 more source

Analytical and numerical investigation of heat transfer of porous fin in a local thermal non-equilibrium state

open access: yesHeliyon
This research employs a local thermal non-equilibrium (LTNE) model to analyze the heat transfer phenomenon through a porous fin, considering natural convection and radiation effects.
Payam Jalili   +4 more
doaj   +1 more source

Unsteady MHD slip flow of a ferrofluid over an impulsively stretched vertical surface

open access: yesAIP Advances, 2019
Investigation of unsteady magnetohydrodynamic (MHD) mixed convective ferrofluid flow over an impulsively stretchable surface is modeled with convective boundary conditions and partial slip impacts.
S. M. M. EL-Kabeir   +4 more
doaj   +1 more source

On linking numbers and Biot-Savart kernels

open access: yes
On a compact manifold, the solutions of the initial value problem for the heat equation with currential initial conditions are smooth families of forms for $t>0$. If the initial condition is an exact submanifold $L$ then the integral in $t$ of this family gives a smooth form $Ω$ on the complement of $L$ such that $ω:=d^*Ω$ is a solution for the ...
Cibotaru, Daniel, Mari, Luciano
openaire   +2 more sources

Performance Prediction of Battery Pack Throughout the Entire Lifecycle Using Monte Carlo Algorithm and Joint Simulation of Multiple Physical Fields

open access: yesEnergy Science &Engineering, EarlyView.
ABSTRACT This article is based on the storage test of individual batteries. We combined the data analysis with the deductive simulation to predict the health status of the entire battery pack. Besides, we combined the storage process and discharge process of the battery pack based on the single‐cell storage test.
Liteng Zeng   +3 more
wiley   +1 more source

Multicontinuum Homogenization for Poroelasticity Model

open access: yesInternational Journal for Numerical Methods in Fluids, EarlyView.
This work derives a generalized multicontinuum poroelasticity model using the multicontinuum homogenization method to enable accurate coarse‐grid simulations of coupled flow–mechanics processes in highly heterogeneous porous media. Coupled constraint cell problems are formulated, and the corresponding multicontinuum equations are rigorously derived ...
Dmitry Ammosov   +2 more
wiley   +1 more source

Modeling and simulation of underwater acoustic propagation through a random distribution of ice blocks [PDF]

open access: yesJASA Express Letters
Acoustic propagation through a random distribution of 1 m ice cubes, from 100 to 1000 Hz, was simulated in a 3D finite element model. The effective sound speed and attenuation as functions of frequency were calculated from the simulated signals. Attempts
Nicholas P. Chotiros, Sverre Holm
doaj   +1 more source

Biot-JKD model: simulation of 1D transient poroelastic waves with fractional derivatives

open access: yes, 2012
A time-domain numerical modeling of Biot poroelastic waves is presented. The viscous dissipation occurring in the pores is described using the dynamic permeability model developed by Johnson-Koplik-Dashen (JKD).
Biot   +34 more
core   +4 more sources

Home - About - Disclaimer - Privacy