Navier - Stokes equations

The present paper aims to show the numerical results of an incompressible fluid flow in curved pipes for three-dimensional space using the fluid-structure interaction (FSI) model. A tetrahedral element is employed to discretize the Navier-Stokes equation for a fluid part and the elastic model for the solid domain.

9p dathienlang1012 03-05-2024 2 0   Download

Ebook "Terrestrial biosphere-atmosphere fluxes" provide the tools to understand and quantitatively analyse fluxes of energy, organic compounds such as terpenes, and trace gases including carbon dioxide, water vapour and methane. It first introduces the fundamental principles affecting the supply and demand for trace gas exchange at the leaf and soil scales: thermodynamics, diffusion, turbulence and physiology.

519p duongthandue0501 28-02-2024 6 1   Download

Ebook "Vortex, molecular spin and nanovorticity: An introduction" is the physics of vortices. A detailed analysis of the dynamics of vortices will be presented. The important topics of vorticity and molecular spin will be dealt with, including the electromagnetic analogy and quantization in superfluids. The effect of molecular spin on the dynamics of molecular nano-confined fluids using the extended Navier-Stokes equations will also be covered especially important to the theory and applicability of nanofluidics and associated devices.

142p tachieuhoa 28-01-2024 4 2   Download

We consider the 3D viscous Camassa-Holm equations with damping term in the whole space. We first prove the existence, uniqueness of global weak solutions to the equations. Then, the Sobolev regularity of the solutions is studied.

10p visharma 20-10-2023 6 2   Download

In this paper, we establish second-order sufficient optimality conditions for optimal control problem of 2D g-NavierStokes equations. The long-time behavior of the strong solutions was studied very recently in the autonomous case in terms of existence of a global attractor, and existence and stability of a unique stationary solution.

7p vifriedrich 25-08-2023 5 3   Download

The Gronwall lemma and Poincaré type inequality will play a central role in our computational technique as well as of the paper. Studying the properties of solutions is important to determine the behavior of solutions over a long period of time. The obtained result particularly extends previous results for 2D NVS equations.

9p viberkshire 09-08-2023 6 3   Download

An approximate method is proposed for determining the aerodynamic effect of coherent vortex structures (CVS) of atmospheric turbulence on an aircraft. As a source of the CVS the vortex wind wakes arising when the atmospheric wind flows around the mountain massif of the Son Tra peninsula, located near the Da Nang airport, and the vortex wake behind the Su-27 type aircraft in the landing configuration are considered.

20p viwolverine 11-07-2023 9 2   Download

The novel desalination device, the return flow electromembrane desalination called Return Flow IonConcentration-Polarization (RF-ICP) which resolved one of the most prominent problems in ICP is the overlimiting conduction mechanism. The development of the ion depletion layer largely determines the energy consumption of electromembrane desalination, because of the increased electrical resistance of the iondepleted boundary layer which is also a desired outcome for desalination.

8p viblackwidow 07-04-2023 9 4   Download

The current research is undertaken by performing Computational Fluid Dynamics (CFD) simulations for a 2D aerofoil fitted with a shock control bump at a transonic flow condition. Reynolds-Averaged Navier-Stokes equation coupled with turbulence models is adopted to solve the flowfield. The bump has a conventional geometric feature which consists of a ramp, a crest and a tail, and it has eight variants for which the designed parameters are reasonably specified according to the compressible aerodynamics theory.

84p runthenight04 02-02-2023 5 2   Download

This paper presents a new one-dimensional solver for two-phase flow simulations where boiling is involved. The solver has been implemented within the OpenFOAM® platform. The basic formulation follows the Eulerian description of the Navier–Stokes equations.

16p vironald 15-12-2022 9 4   Download

We consider the initial boundary value problem for 2D g-Navier-Stokes equations in bounded domains with homogeneous Dirichlet boundary conditions. We prove some important properties of solutions to the problem including the backward uniqueness property, the squeezing property.

9p viporsche 03-11-2022 12 2   Download

We consider the motion of a viscous imcompressible fluid past a rotating rigid body in threedimensional, where the translational and angular velocities of the body are prescribed but time-dependent. In a reference frame attached to the body, we have the non-autonomous OseenNavier-Stokes equations in a fixed exterior domains.

8p viporsche 25-10-2022 7 2   Download

We consider the motion of a viscous imcompressible fluid past a rotating rigid body in threedimensional, where the translational and angular velocities of the body are prescribed but time-dependent. In a reference frame attached to the body, we have the non-autonomous OseenNavier-Stokes equations in a fixed exterior domains.

8p vimclaren 12-10-2022 4 2   Download

(BQ) Ebook Fundamentals of Aerodynamics: Part 2 includes the following content: Compressible flow: some preliminary aspects; normal shock waves and related topics; oblique shock and expansion waves; compressible flow through nozzles, diffusers, and wind tunnels; subsonic compressible flow over airfoils: linear theory; linearized supersonic flow; introduction to numerical techniques for nonlinear supersonic flow; elements of hypersonic flow; introduction to the fundamental principles and equations of viscous flow; a special case: couette flow; introduction to boundary layers; laminar boundar...

607p runordie6 10-08-2022 7 1   Download

This paper investigates the effects of recirculation channel on the performance of a single-stage transonic axial compressor, NASA Stage 37, such as pressure ratio, adiabatic efficiency, and operating range. Numerical analysis was conducted by solving three-dimensional steady Reynolds-averaged Navier-Stokes equations with the k-epsilon turbulence model.

6p vimelindagates 18-07-2022 5 2   Download

In this work, we developed a numerical solver, integrated it into the OpenFOAM platform, for modeling electroconvective flow. The solver deals with the system of Poisson-Nernst-Planck-Navier-Stokes equations. The finite volume schemes functioned in OpenFOAM were used for discretisation of the Poisson-NernstPlanck equations.

8p vimelindagates 18-07-2022 6 2   Download

In this paper, we consider the 2D g-Bénard problem in domains satisfying the Poincaré inequality with homogeneous Dirichlet boundary conditions. We show the existence and uniqueness of strong solutions. The obtained results particularly extend previous results for 2D g-Navier-Stokes equations and 2D Bénard problem.

10p vithales 19-04-2022 17 2   Download

This paper focuses on the numerical simulation of an incompressible, immiscible, and Newtonian fluid for the contraction process of a fluid compound filament by solving the Navier-Stokes equations. The front-tracking method is used to solve this problem, which uses connected segments (Lagrangian grid) that move on a fixed grid (Eulerian grid) to represent the interface between the liquids.

9p spiritedaway36 28-11-2021 9 1   Download

In this paper, we consider the -Navier-Stokes equations in a two-dimensional bounded domain, we stabilize an unstable weak stationary solution by using linear multiplicative Ito noise.

4p parasite 02-06-2021 8 1   Download

Aerostatic bearings are ones which carry loads with nearly frictionless movement, thanks to external supply of pressurized air. The bearing pad and guide surfaces are kept apart and lubricated by a micrometer-thick compressed air film with a load capacity depending mainly on the pressure distribution. The flow of air through the gap complies with the Navier-Stokes equations and conservation of mass and energy.

10p cothumenhmong11 05-05-2021 17 2   Download