Hi All, I want to develop a poroelastic model using el2p module in Dumux 3.1. As per Dumux2.12 class documentation, soil mechanics sign convention (i.e. compressive stresses are negative) has been used in el2p module. However, papers & thesis based on Dumux2 has used opposite sign convention. Can you clarify which sign convention is being used in Dumux3.1?
Q2. As a linearised form of momentum balance equation is being solved in el2p model, the solution effective stress obtained from: const auto effSigma = StressType::effectiveStressTensor(*this, element, fvGeometry, elemVolVars, fluxVarsCache); is the total effective stress or change in effective stress with respect to initial effective stress? References: 1. p-3, Volume-Based Modelling of Fault Reactivation in Porous Media Using a Visco-Elastic Proxy Model. Martin Beck1 · Gabriele Seitz1 · Holger Class1 2. p-3, Modelling fault reactivation with characteristic stress-drop terms. Martin Beck and Holger Class 3. p68-69, Coupling Models of Different Complexity for the Simulation of CO2 Storage in Deep Saline Aquifers Thank you, Regards, Ranjeet
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