Details zur Publikation |
| Kategorie | Textpublikation |
| Referenztyp | Buchkapitel |
| URL | https://iahs.info/uploads/dms/15314.43-228-234-341-19-Kolditz-revised_OK.pdf |
| Titel (primär) | Numerical simulation of two-phase flow in deformable porous media: application to carbon dioxide storage in the subsurface |
| Titel (sekundär) | Calibration and reliability in groundwater modelling: Managing groundwater and the environment. 7th International Conference on Calibration and Reliability in Groundwater Modelling ModelCARE 2009, Wuhan, China, 20-23 September 2009 |
| Autor | Kolditz, O.
; Böttcher, N.; Bauer, S.; Görke, U.-J.; Park, C.-H.; Wang, W.
|
| Herausgeber | Wang, Y.; Ge, S.; Hill, M.C.; Zheng, C. |
| Quelle | IAHS Publication |
| Erscheinungsjahr | 2011 |
| Department | ENVINF |
| Band/Volume | 341 |
| Seite von | 228 |
| Seite bis | 234 |
| Sprache | englisch |
| Keywords | porous media; two-phase flow; deformation; benchmarking; carbon capture storage (CCS) |
| Abstract | In this paper, numerical simulation of two-phase flow in deep, deformable geological formations induced by CO(2) injection is presented. The underlying conceptual approach is based on balance equations for mass, momentum and energy completed by appropriate constitutive relations for the fluid phases as well as the solid matrix. Within the context of the primary effects under consideration, the fluid motion will be expressed by modified Darcy's law for two phase flow. To characterize the stress state in the solid matrix, the effective stress principle is applied. Furthermore, interaction of fluid and solid phases is specified by constitutive models for capillary pressure, porosity and permeability as functions of saturation. Based on the conceptual model, a coupled system of nonlinear differential equations is formulated for non-isothermal two-phase flow in a deformable porous matrix (TH(2)M model). The finite element method is used to solve the multi-field problem numerically. The capabilities of the model and the numerical tools to treat complex processes during CO(2) sequestration is checked by benchmarking within a wider scope of a benchmarking scheme, which is also presented and illustrated using two examples: (1) a new benchmark test for H(2)M processes, and (2) a 3-D demonstration example to test the stability and computational costs of the H(2) model for real applications. |
| dauerhafte UFZ-Verlinkung | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=13710 |
| Kolditz, O., Böttcher, N., Bauer, S., Görke, U.-J., Park, C.-H., Wang, W. (2011): Numerical simulation of two-phase flow in deformable porous media: application to carbon dioxide storage in the subsurface In: Wang, Y., Ge, S., Hill, M.C., Zheng, C. (eds.) Calibration and reliability in groundwater modelling: Managing groundwater and the environment. 7th International Conference on Calibration and Reliability in Groundwater Modelling ModelCARE 2009, Wuhan, China, 20-23 September 2009 IAHS Publ. 341 International Association of Hydrological Sciences (IAHS), Wallingford, Oxfordshire, p. 228 - 234 |
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