A conservative hybrid method for darcy flow

Conference Paper (2020)
Author(s)

Varun Jain (TU Delft - Aerodynamics)

Joël Fisser (Student TU Delft)

Artur Palha (TU Delft - Aerodynamics)

Marc Gerritsma (TU Delft - Aerodynamics)

Research Group
Aerodynamics
DOI related publication
https://doi.org/10.1007/978-3-030-39647-3_16
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Publication Year
2020
Language
English
Research Group
Aerodynamics
Pages (from-to)
215-227
ISBN (print)
9783030396466
Event
12th International Conference on Spectral and High-Order Methods, ICOSAHOM 2018 (2018-07-09 - 2018-07-13), London, United Kingdom
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Abstract

We present a hybrid mimetic spectral element formulation for Darcy flow. The discrete representations for (1) conservation of mass, and (2) inter-element continuity, are topological relations that lead to sparse matrix systems. These constraints are independent of the element size and shape, and thus invariant under mesh transformations. The resultant algebraic system is extremely sparse even for high degree polynomial basis. Furthermore, the system can be efficiently assembled and solved for each element separately.