Fluids

Fluids

Modelling Relative Humidity

    • Morice
      Subscriber

      I am attempting to simulate 3-D transient flow over a building in a bid to model velocity, temperature, and relative humidity profiles. Boundary conditions and species properties are set as shown in the screenshots below.

    • Rob
      Ansys Employee
      That's the water mass fraction which may be constant if there are no extra sources of moisture. In Fluent look in the Species contours, and if you have an air + water vapour mixture you should see an RH field. Plot that. Remember, in most environmental systems the moisture fraction is constant, but as RH depends on temperature (mainly) and pressure you will see a variation.
    • Morice
      Subscriber
      Thank you, Rob. The relative humidity contours are as expected.
    • DrAmine
      Ansys Employee
      Yeah.
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