2 Replies Latest reply on Apr 6, 2013 4:27 PM by Rich Bayless

    Flow Simulation - Analyze mutual dissolution of fluids

    Alan Lynch

      Hello,

       

           Under the SW Flow Simulation Forum, there is a link that says "What You Can Do in SolidWorks Flow Simulation".   Under the "Fluid and Flow Types" section, it says: "Analyze mutual dissolution of fluids.  Mixing fluids must be of the same type."   Would someone please explain what this means?  Does this mean the dispersion and mixing of multiple gases or fluids, but not dispersion/mixing of fluids and gases?   Said differently, can Flow Simulation mix multiple gases together?

       

           Also, in the Solving Engineering Tasks document for Flow Simulation, in the introduction section on page 1-2 it says: "The purely computational approach, being properly performed, is substantially less expensive than the experimental one, both in terms of finances and time, but it requires assurance in adequacy of the obtained computational results. Naturally, such assurance must be based on numerous verifications and validations of the used computational codes, both on the mathematical accuracy of the obtained results (the results adequacy to the used mathematical model) and on the adequacy of the used mathematical model to the governing physical processes, which is validated by comparing the computation results to the available experimental data."     Would you please comment on whether any computational results were validated with available experimental data specifically related to analyzing the mutual dissolution of fluids?  If so, what validation/verification examples were used to analyze the mutual dissolution of fluids?

       

      Thank you for your input.

        • Re: Flow Simulation - Analyze mutual dissolution of fluids
          Jared Conway

          on your first question, you can mix multiple gasses or multiple fluids. you can't mix them together because Flow Simulation doesn't handle 2 phase flow.

           

          on your second question, the developers don't include functionality that they haven't tested against known solutions. that would be a dangerous thing to do. however in the technical reference, there is no specific mixing validation problem. i'd suggest submitting that as an enhancement request. also it is probably worth looking over the equations and methods used in the technical reference to assure yourself that the method matches what you're expecting.

           

          in practice, i've worked with several customers that have used it and it has predicted the mixing pretty close to experiments.

           

          depending on your situation, it is also probably working at the tracer study and particle study depending on what you want to learn.

          • Re: Flow Simulation - Analyze mutual dissolution of fluids
            Rich Bayless

            Hello,

             

            For your first question, the fluid type means gas or liquid and is also further broken down into types of gases and types of liquids.

             

            For example, in one study you can have several non-newtonian liquids, but you can't select liquids that are both newtonian and non-newtonian in the same study.

             

            https://forum.solidworks.com/message/234117#234117

             

            Rich.