Results 31 to 40 of about 33,543 (232)

The effect of mixed convection on the thermal field of horizontal channel flow

open access: yesEPJ Web of Conferences, 2018
An experimental study was conducted to investigate the thermal field of low-speed flow of moistair in a horizontal rectangular duct, uniformly heated from below (Poiseuille–Benard flow).
Devera Jakub, Hyhlík Tomáš
doaj   +1 more source

Exact solutions for some unsteady flows of a couple stress fluid between parallel plates

open access: yesAin Shams Engineering Journal, 2018
Exact solutions for three fundamental unsteady flows of an incompressible couple stress fluid between two parallel plates, namely, Couette, generalized Couette and Poiseuille flows, are obtained. Analytical solutions of the corresponding initial-boundary
Shehraz Akhtar, Nehad Ali Shah
doaj   +1 more source

A Study to Investigate the Viscosity Effect on Micro-Confined Fluids Flow in Tight Formations Considering Fluid–Solid Interaction

open access: yesFrontiers in Earth Science, 2021
Understanding different fluids flow behavior confined in microscales has tremendous significance in the development of tight oil reservoirs. In this article, a novel semiempirical model for different confined fluid flow based on the concept of boundary ...
Mingqiang Chen   +9 more
doaj   +1 more source

Recurrent bursts via linear processes in turbulent environments

open access: yes, 2014
Large-scale instabilities occurring in the presence of small-scale turbulent fluctuations are frequently observed in geophysical or astrophysical contexts but are difficult to reproduce in the laboratory.
Brethouwer, Geert   +4 more
core   +3 more sources

Simulation of Poiseuille flow

open access: yesKeldysh Institute Preprints, 2021
In this article, plane and space Poiseuille flow was simulate of the lattice Boltzmann method. Because Poiseuille solution is one of the simplest solutions Navier-Stokes equations, it is well for exploring opportunities of lattice Boltzmann method. Simulation flows in plane rectangular and ellipsoidal cylindrical pipes assist to detect advantages and ...
openaire   +1 more source

Physics-Informed Neural Network for Solving 2D Steady Incompressible Navier-Stokes Equations: Application to Poiseuille Flow [PDF]

open access: yesPhysics Access
This study explores the application of Physics-Informed Neural Networks (PINNs) to solve the two-dimensional steady incompressible Navier-Stokes equations, focusing on Poiseuille flow in a rectangular channel. Implemented using the DeepXDE library with
Peter Anthony   +2 more
doaj   +1 more source

A direct numerical simulation display of the rotational frame preference of turbulence

open access: yesAIP Advances, 2023
An elementary observation of a laminar cylindrical Poiseuille–Couette flow profile reveals no distinction in the parabolic streamwise profile, from one without a cross-stream flow, in whatever reference frame the observation is made.
Samuel D. Dunstan
doaj   +1 more source

Hagen-Poiseuille Flow in a Quarter-Elliptic Tube

open access: yesFluids, 2023
We present a rare exact solution of the Navier–Stokes equations for the Hagen–Poiseuille flow through a quarter-elliptic tube. Utilizing the separation of variables method, we derive the solution and report expressions for both the volumetric flow rate ...
Mateus D. Bacelar   +3 more
doaj   +1 more source

Migration reversal of soft particles in vertical flows

open access: yes, 2017
Non-neutrally buoyant soft particles in vertical microflows are investigated. We find, soft particles lighter than the liquid migrate to off-center streamlines in a downward Poiseuille flow (buoyancy-force antiparallel to flow).
Förtsch, Andre   +3 more
core   +1 more source

Forced Axial Flow Between Rotating Concentric Cylinders [PDF]

open access: yes, 2014
Forced axial flow in an annular gap of a cylindrical rotor is investigated analytically and experimentally. At small rotation rates and narrow gap widths, the axial flow is a simple Poiseuille flow over most of the rotor.
Barcilon, Victor, Berg, Howard Curtis
core   +1 more source

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