dc.contributor.author | Johnsen, Sverre Gullikstad | |
dc.contributor.author | Johansen, Stein Tore | |
dc.contributor.author | Wittgens, Bernd | |
dc.date.accessioned | 2017-06-13T07:56:22Z | |
dc.date.available | 2017-06-13T07:56:22Z | |
dc.date.created | 2015-12-21T09:42:06Z | |
dc.date.issued | 2015 | |
dc.identifier.uri | http://hdl.handle.net/11250/2445887 | |
dc.description.abstract | The main objective of this paper is to present a generic modelling framework, for the diffusive mass transport through the turbulent, reactive boundary layer of multi-component fluid mixtures that precipitate on the wall. The modelling is based on Maxwell-Stefan diffusion in multi-component mixtures, the relaxation to chemical equilibrium model, and the single-phase Navier-Stokes equations. Final-ly, turbulence is introduced by Reynolds-averaging. The governing equations are simplified in accordance with common assumptions of computational fluid dynamics (CFD), and b ased on the assumption that the over-all bulk flow is parallel to the wall, 1-dimensional equations for the species and heat transport perpendicular to the wall have been formulated. The equations are solved on a fine grid in order to fully re solve the boundary layer, and the effect of allowing/disallowing deposition and chemical reactions was investigated for a simplified test-case (4-component ideal mixture of perfect gasses capable of chemical reaction and sublimation fouling). The developed framework can be employed as a sub-grid model for direct precipitation/crystallization/solidification fouling in coarse grid CFD models | nb_NO |
dc.language.iso | eng | nb_NO |
dc.title | A Wall-Function Approach for Direct Precipitation/Crystallization Fouling in CFD Modelling | nb_NO |
dc.type | Chapter | nb_NO |
dc.description.version | publishedVersion | nb_NO |
dc.identifier.cristin | 1303089 | |
dc.relation.project | Norges forskningsråd: 226210 | nb_NO |
cristin.unitcode | 194,64,25,0 | |
cristin.unitname | Institutt for energi- og prosessteknikk | |
cristin.ispublished | true | |