Fluid_Aspect_Course_2_5_2 - nasa/gunns GitHub Wiki

Fluid Aspect Course 2.5.2: The Fluid Node

Node Class Heirarchy

  • All nodes in a fluid network are GunnsFluidNode objects, which inherit GunnsBasicNode.
  • GunnsFluidNode adds a few attributes and overrides some GunnsBasicNode attributes for use in fluid networks.

Node Class Attributes

GunnsBasicNode

Some base class attributes and what they mean in the fluid aspect.

  • mPotential: Generic potential of the node. No Trick units.
    • This is pressure in the fluid aspect, in units of (kPa).
    • Matches the value of GunnsFluidNode’s mContent.mPressure. Node pressure can be found in both locations.
  • mInfluxRate: Generic total rate of flows into the node from all sources. No Trick units.
    • This is mass flow rate into the node, in units of (kg/s).
  • mOutfluxRate: Generic total rate of flows out of the node to all destinations. No Trick units.
    • This is mass flow rate out of the node, in units of (kg/s).
  • mNetFlux: Generic net accumulated rate into the node from all in and out flows. No Trick units.
    • This is net mass flow rate into the node, in units of (kg/s).
  • mFluxThrough: Generic net flux rate through the node. No Trick units.
    • This is net mass flow rate through the node, in units of (kg/s).

GunnsFluidNode

  • mContent: This is the state of the fluid residing in the volume represented by the node.
    • This is a PolyFluid object.
  • mInflow: This is the mixed state of all flows coming into the node, before mixing with mContent.
    • This is a PolyFluid object.

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