JohnLiang Posted September 4, 2018 Share Posted September 4, 2018 Hello, Our client has a urgent question as following: She wants to set different minerals and aq exist at the same time in the initial setting as the following figure: After running, it can't get the result because of the too large residuals as the following figure: So she wants to know how to ensure if the initial setting is suitable. You can use the attached file. Please help us. Thanks a lot. John IRSN2007_reactive_trans_test.x2t Quote Link to comment Share on other sites More sharing options...
Brian Farrell Posted September 4, 2018 Share Posted September 4, 2018 Hi John, You can’t set zero values for entries in the basis (other than pH, pe, or Eh, since those are logarithmic values). A mineral, for example, can’t have 0 values for concentration or mass. Doing so makes it impossible to solve for the distribution of mass. You can, however, set trivial non-zero concentrations. The initial fluid in this case would still be in equilibrium with the mineral throughout the domain. If the system isn’t in equilibrium with a particular mineral everywhere in the domain, it can be set as a kinetic reactant on the Reactants pane. Hope this helps, Brian Farrell Aqueous Solutions LLC Quote Link to comment Share on other sites More sharing options...
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