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Fluids

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Topics related to Fluent, CFX, Turbogrid and more.

CFD post doesnt show variables

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    • Alberto
      Subscriber

      Hi community,

       

       after a long simulation in which i've extracted all data variables from solution data export(and here, i didn't show any indication about forces) and reports (here i get the forces in time) under the solution panel in CFD post some variables like Force and Strain Rate are "unknown".

      The only way i have to extract these forces is to use this expression:  Air.force_z()@CASE:seed_15_mesh 1 21450 1.seed15 but the results of this is a scalar quantity.

      It is possible to extract the values of this force in each point of seed15 surface along a line in a preferential direction ? I would like to plot the force_z distribution over a line.

    • Luca B.
      Forum Moderator

      Hi Alberto, 

      are you running a Fluent or CFX simulation? How are you then transfering results files to CFD post? 

      What do you exactly want to compute in CFD Post? Pressure forces along a line on a surface?

       

      thanks

      Luca

    • Alberto
      Subscriber

      Hi, i'm running a fluent simulation.

      I've saved from calculation activities all the solutions possibles in cdat format for cfd post, i can load results and visualize pressure,velocity,vorticity etc. What i can't visualize are the forces along the spanwise direction of the body.

      I would like to compute fluid forces (pressure and viscosity) per unit length along this spanwise direction, in order to compute the sectional lift coefficient. 

       

      Thanks

       

      Alberto

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