Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Particles' transport in a single fracture under variable flow regimes |
| Abstract | A mathematical model to account for non-laminar terms, during simulated transports in fractured rocks has been developed. The relevant conceptual model consists of a two dimensional grid block equivalent to a variable fracture plane. The block aperture variability is expressed by means of stochastic procedures, based upon some characteristics of fractured media. One of them, e.g. the equivalent hydraulic aperture, may be estimated by means of the results of field tests. The solution of Navier-Stokes and Darcy-Weisbach's equation for steady state flow between two parallel plates with constant aperture allows the systems of equations under respetively, laminar and non-laminar conditions, to be wirtten. The flow model is a standard finite-difference method with a modified version of Darcy's equation to account for non-laminar terms that are important at high water velocity. To simulate solute transports, the particle tracking technique was applied. q1999 Elsevier Science Ltd. All rights reserved |
| Source | Advances in engineering software (1978) 30, pp. 27–37 |
| Keywords | Fractured media; Radial flow; Non-laminar regime; Numerical model; Fracture apertures |
| Journal | Advances in engineering software (1978) |
| Editor | CML Publications,, Southampton (125 High St., Southampton SO1 0AA), Regno Unito |
| Year | 1999 |
| Type | Articolo in rivista |
| Authors | C. Masciopinto |
| Text | 234967 1999 Fractured media; Radial flow; Non laminar regime; Numerical model; Fracture apertures Particles transport in a single fracture under variable flow regimes C. Masciopinto National Research Council, Water Research Institute, Via F. De Blasio 5, 70123 Bari, Italy A mathematical model to account for non laminar terms, during simulated transports in fractured rocks has been developed. The relevant conceptual model consists of a two dimensional grid block equivalent to a variable fracture plane. The block aperture variability is expressed by means of stochastic procedures, based upon some characteristics of fractured media. One of them, e.g. the equivalent hydraulic aperture, may be estimated by means of the results of field tests. The solution of Navier Stokes and Darcy Weisbach s equation for steady state flow between two parallel plates with constant aperture allows the systems of equations under respetively, laminar and non laminar conditions, to be wirtten. The flow model is a standard finite difference method with a modified version of Darcy s equation to account for non laminar terms that are important at high water velocity. To simulate solute transports, the particle tracking technique was applied. q1999 Elsevier Science Ltd. All rights reserved 30 Articolo in rivista CML Publications, 0141 1195 Advances in engineering software 1978 Advances in engineering software 1978 Adv. eng. softw. 1978 Advances in engineering software. 1978 costantino.masciopinto MASCIOPINTO COSTANTINO |