000016008 001__ 16008
000016008 005__ 20161115135336.0
000016008 04107 $$aeng
000016008 046__ $$k2013-06-12
000016008 100__ $$aFytanidis, D.
000016008 24500 $$aSimulating Landfill Aeration Systems Using Computational Fluid Dynamics Techniques

000016008 24630 $$n34.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000016008 260__ $$bNational Technical University of Athens, 2013
000016008 506__ $$arestricted
000016008 520__ $$2eng$$aThe present study is an application of Computational Fluid Dynamics (CFD) on the numerical modeling of aeration systems of uncontrolled landfills. More specifically, the CFD algorithms provided by the commercial solver ANSYS Fluent 14.5, combined with an in-house source code developed to complement the main solver was used. Coupling the multiphase flow with a biochemical algorithm, the complex biochemical process of organic solid waste stabilization using aeration was simulated. Air was considered to enter the solid waste region which was partially saturated, using aeration wells. Multiphase flow both for the air and liquid phase was simulated taking into consideration the oxygen (O2) transfer across phases. Unsaturated flow effects, such as capillary pressure and unsaturated hydraulic conductivity, were taken into consideration during the simulation using proper functions that were included in the main solver. After the initial model set up, a sensitivity analysis for basic biochemical parameters was implemented, examining the effect of various kinetic parameters variation. Moreover, pilot scale simulations were performed. The results obtained were in good agreement with corresponding previous experimental and computational results of the literature. Finally, a case study was simulated for a hypothetical landfill aeration well.

000016008 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000016008 653__ $$aLandfill aeration, Aerobic degradation, Aeration well, Zone of influence.

000016008 7112_ $$aCOMPDYN 2013 - 4th International Thematic Conference$$cIsland of Kos (GR)$$d2013-06-12 / 2013-06-14$$gCOMPDYN2013
000016008 720__ $$aFytanidis, D.$$iVoudrias, E.
000016008 8560_ $$ffischerc@itam.cas.cz
000016008 8564_ $$s1227141$$uhttp://invenio.itam.cas.cz/record/16008/files/2099.pdf$$yOriginal version of the author's contribution as presented on CD, section: SC-RS 03 COMPUTATIONAL ENVIRONMENTAL SCIENCE
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000016008 962__ $$r15525
000016008 980__ $$aPAPER