Search Results - subject:"FLUID FLOW"

Augmented Riemann solver for urethra flow modeling

Brandner, Marek; Egermaier, Jiří; Kopincová, Hana - In: Mathematics and Computers in Simulation (MATCOM) 80 (2010) 6, pp. 1222-1231

In this paper we propose a new conservative numerical scheme for the male urethra and ureter fluid flow simulations. We …

Persistent link: https://www.econbiz.de/10011051154

Combined Lattice Boltzmann and phase-field simulations for incompressible fluid flow in porous media

Nestler, Britta; Aksi, Ali; Selzer, Michael - In: Mathematics and Computers in Simulation (MATCOM) 80 (2010) 7, pp. 1458-1468

A Lattice-Boltzmann method for incompressible fluid flow is coupled with the dynamic equations of a phase-field model … formulation of a bounce-back condition related to the diffuse profile of the interfaces. We present simulations of fluid flow in …

Persistent link: https://www.econbiz.de/10010750207

Experimental study on 75kWth downdraft (biomass) gasifier system

Sharma, Avdhesh Kr. - In: Renewable Energy 34 (2009) 7, pp. 1726-1733

Experimental study on 75kWth, downdraft (biomass) gasifier system has been carried out to obtain temperature profile, gas composition, calorific value and trends for pressure drop across the porous gasifier bed, cooling–cleaning train and across the system as a whole in both firing as well as...

Persistent link: https://www.econbiz.de/10010805517

FGMRES preconditioning by symmetric/skew-symmetric decomposition of generalized stokes problems

De Cecchis, Dany; López, Hilda; Molina, Brígida - In: Mathematics and Computers in Simulation (MATCOM) 79 (2009) 6, pp. 1862-1877

The generalized Stokes problem is solved for non-standard boundary conditions. This problem arises after time semi-discretization by ALE method of the Navier–Stokes system, which describes the flow of two immiscible fluids with similar densities but different viscosities in a horizontal pipe,...

Persistent link: https://www.econbiz.de/10011051224

Pressure-driven transient flows of Newtonian fluids through microtubes with slip boundary

Wu, Yong Hong; Wiwatanapataphee, B.; Hu, Maobin - In: Physica A: Statistical Mechanics and its Applications 387 (2008) 24, pp. 5979-5990

micrometer and nanometer scale tubes and channels. On the other hand, there is an urgent need to understand fluid flow in …

Persistent link: https://www.econbiz.de/10011057559

Numerical solution of bypass flow

Prokop, V.; Kozel, K. - In: Mathematics and Computers in Simulation (MATCOM) 76 (2007) 1, pp. 166-170

This paper deals with a problem of numerical solution of a flow through a channel with angular bypass. This flow is supposed to be laminar, viscous and incompressible. For description of this type of flow the model of the Navier–Stokes equations could be used. One can find steady solution of...

Persistent link: https://www.econbiz.de/10010870749

Smoothed particle hydrodynamics and finite volume modelling of incompressible fluid flow

Lobovský, Libor; Vimmr, Jan - In: Mathematics and Computers in Simulation (MATCOM) 76 (2007) 1, pp. 124-131

Fundamentals of two different numerical approaches to the fluid flow modelling are presented. The smoothed particle … grid is replaced by a finite set of interpolating points. The fluid flow is described by Euler equations and dissipative … with a structured grid and the fluid flow is defined by a non-linear conservative system of the Navier–Stokes equations …

Persistent link: https://www.econbiz.de/10011050455

Density profile and flow of driven gas in an open porous medium with a computer simulation

Pandey, R.B; Becklehimer, J.L; Gettrust, J.F - In: Physica A: Statistical Mechanics and its Applications 289 (2001) 3, pp. 321-335

A computer simulation model is used to study the flow of gas from a source through open porous media on a simple cubic lattice with a pressure bias. This model is used to represent marine sediments through which fluid flows. Isotropic and layered porous media are considered and the gas fluid is...

Persistent link: https://www.econbiz.de/10011059487