WOLFRAM SYSTEM MODELER
    surfaceTensionReturn surface tension sigma in the two phase region  | 
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SystemModel["Modelica.Media.Interfaces.PartialTwoPhaseMedium.surfaceTension"]

| sat | 
         Type: SaturationProperties Description: Saturation property record  | 
    
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| sigma | 
         Type: SurfaceTension (N/m) Description: Surface tension sigma in the two phase region  | 
    
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         Modelica.Media.Water.WaterIF97_base Surface tension in two phase region of water  | 
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         Modelica.Media.R134a.R134a_ph Surface tension as a function of temperature (below critical point)  |