N

N2OEquilibrium Mass Fraction
Equilibrium mass fraction of N2O, Y N 2 O e q in Eqn. (4046).
Function Name: N2OEquilibrium Mass Fraction
Dimensions: [Dimensionless]
Default units: N/A
Type: Scalar
Activated by: NOx Relaxation Approach (NORA) model
Net Reaction Rate <species>
The overall mass source term due to chemical reaction of the species.
Function Name: ProductRate<species>
Dimensions: [Mass/Volume-Time]
Default units: kg/m3-s
Type: Scalar
Activated by: Reacting Species Transport
Net Wall Heat Flux Coefficient, A
Net Wall Heat Flux Coefficient, B
Net Wall Heat Flux Coefficient, C
Net Wall Heat Flux Coefficient, D
The net wall heat flux coefficients A , B , C , D .

In a multiphase continuum, versions of these field functions are created for each phase.

See User Wall Heat Flux Coefficient Specification.

Function Name: Net Wall Heat Flux Coefficient, A|B|C|D
Dimensions: [Power/Length2]
Default units: W/m2
Type: Scalar
Activated by: Coupled Energy, Coupled Solid Energy, Segregated Fluid Enthalpy, Segregated Fluid Temperature, Segregated Solid Energy
Niyama Criterion of <Phase> @ <Critical Temperature>
The Niyama Criterion of the melting-solidifying phase. (The field function Niyama Criterion of <Phase> in earlier releases now corresponds to Niyama Criterion of <Phase> @T_solidus.)
Function Name: NiyamaPhase 1_Tsolidus
Dimensions: [Dimensionless]
Default units: N/A
Type: Scalar
Activated by: Criteria Functions
NO2Equilibrium Mass Fraction
Equilibrium mass fraction of NO2, Y N O 2 e q in Eqn. (4045).
Function Name: NO2Equilibrium Mass Fraction
Dimensions: [Dimensionless]
Default units: N/A
Type: Scalar
Activated by: NOx Relaxation Approach (NORA) model
NOEquilibrium Mass Fraction
Equilibrium mass fraction of NO, Y N O e q in Eqn. (4044).
Function Name: NOEquilibrium Mass Fraction
Dimensions: [Dimensionless]
Default units: N/A
Type: Scalar
Activated by: NOx Relaxation Approach (NORA) model
Non-Conformal Interface Faces
Displays the cells of any non-conformal interfaces between fluid/solid or solid/solid boundaries.
Function Name: NonConformalInterfaceFaces
Dimensions: [Dimensionless]
Default units: N/A
Type: Scalar
Activated by: Volume mesh models
Non-Ideal solution Correction to Salt Migration
( ln f ±   ) ( ln c ) in Eqn. (4096).
Function Name: ElectrolyteDlnfAOverdlncTerm
Dimensions: [Dimensionless]
Default units: N/A
Type: Scalar
Activated by: Li-Ion Concentration
NonmanifoldEdges
Displays any non-manifold edges on the surface. Only available for surface meshes.
Function Name: NonmanifoldEdges
Dimensions: [Dimensionless]
Default units: N/A
Type: Scalar
Activated by: Importing parts, using the surface mesher
Non-Newtonian Horizontal Temperature Shift Factor
a T in Eqn. (731) .When the simulation is independent of temperature a T = 1 .
Function Name: NonNewtonianHorizontalTemperatureShiftFactor
Dimensions: [Dimensionless]
Default units: N/A
Type: Scalar
Activated by: Viscous Flow, Viscous Energy
Non-Newtonian Vertical Temperature Shift Factor
b T in Eqn. (731). When the simulation is independent of temperature b T = 1 .
Function Name: NonNewtonianVerticalTemperatureShiftFactor
Dimensions: [Dimensionless]
Default units: N/A
Type: Scalar
Activated by: Viscous Flow, Viscous Energy
NO Mass Fraction
Mass fraction of NO, Y N O in Eqn. (4044).
Function Name: NO Mass Fraction
Dimensions: [Dimensionless]
Default units: N/A
Type: Scalar
Activated by: NOx Relaxation Approach (NORA) model
NO2 Mass Fraction
Mass fraction of NO2, Y N O 2 in Eqn. (4044).
Function Name: NO2 Mass Fraction
Dimensions: [Dimensionless]
Default units: N/A
Type: Scalar
Activated by: NOx Relaxation Approach (NORA) model
NoraEgrFormationEnthalpyCorrection
TBS
Function Name: NoraEgrFormationEnthalpyCorrection
Dimensions: [Energy/Mass]
Default units: J/kg
Type: Scalar
Activated by: NOx Relaxation Approach (NORA) model
NoraScaledEnthalpy
TBS
Function Name: NoraScaledEnthalpy
Dimensions: [Dimensionless]
Default units: N/A
Type: Scalar
Activated by: NOx Relaxation Approach (NORA) model
Normal
A unit length vector perpendicular (orthogonal) to the boundary.
Function Name: Normal
Dimensions: [Dimensionless]
Default units: N/A
Type: Vector
Activated by: Meshfree DEM model
Normal Bond Stress
The normal stress in a bond, used in damage and failure modeling. See δ max in Eqn. (3292). To access this field function, select the bonded particles models.
Function Name: NormalBondStress
Dimensions: [Stress]
Default units: Pa
Type: Scalar
Activated by: Flexible Fiber, Particle Agglomeration, Particle Clumps
Normalized Span of [Virtual Disk]
Normalized radius (values from 0 through 1 where 0 corresponds to the origin of the virtual disk and 1 corresponds to the outer radius of the virtual disk) of cells within the virtual disk with respect to the local coordinate system of the virtual disk.
Function Name: VirtualDiskNormalizedSpan<n>
Dimensions: [Dimensionless]
Default units: N/A
Type: Scalar
Activated by: Virtual Disk
Normalized Average Molar Concentration of [porous phase]
The average molar concentration c a v g , i that is normalized by the maximum intercalated species concentration c max , i . The values range from 0 to 1.
Function Name: NormalizedAverageMolarConcentration[porous phase]
Dimensions: [Dimensionless]
Default units: N/A
Type: Scalar
Activated by: Sub-grid Particle Intercalation
Normalized Surface Molar Concentration of [porous phase]
The surface molar concentration c s u r f , i that is normalized by the maximum intercalated species concentration c max , i . The values range from 0 to 1.
Function Name: NormalizedSurfaceMolarConcentration[porousphase]
Dimensions: [Dimensionless]
Default units: N/A
Type: Scalar
Activated by: Sub-grid Particle Intercalation
Normalized Span Star of [Virtual Disk]
Normalized radius r * of the virtual disk as given by Eqn. (4978). The values range from 0 through 1. A value of 0 corresponds to the inner radius (at the hub) and a value of 1 corresponds to the outer radius (at the tip) of the virtual disk. The radius is with respect to the local coordinate system of the virtual disk.
Function Name: VirtualDiskNormalizedSpanStar<n>
Dimensions: [Dimensionless]
Default units: N/A
Type: Scalar
Activated by: Virtual Disk
Normalized Thickness of [Virtual Disk]
Normalized thickness with values from 0 through 1 where 0 is at the outer surface of the virtual disk in the negative Z direction and 1 in the positive Z direction.

This field function is specific to the User Defined Method of the Virtual Disk model. It is made available to access the flow field values to define the volumetric source term through field functions or user coding. You cannot visualize this field function on the volume mesh cells or on the virtual disk mesh points.

Function Name: VirtualDiskNormalizedThickness<n>
Dimensions: [Dimensionless]
Default units: N/A
Type: Scalar
Activated by: Virtual Disk
Nucleation Site Number Density of [Interface]
Nucleation Site Number Density n in Eqn. (2128) for the Lemmert Chawla model or Eqn. (2132) for the Hibiki-Ishii model.
Function Name: NucleationSiteNumberDensity[Interface]
Dimensions: [Dimensionless]
Default units: N/A
Type: Scalar
Activated by: Wall Nucleate Boiling
Nukiyama Temperature
The Nukiyama Temperature obtained from T c r in Eqn. (2825).
Function Name: FilmEvaporationLatentHeatFlux
Dimensions: [Temperature]
Default units: K
Type: Scalar
Activated by: Habchi Boiling
Number Density of <Phase>
The number of massless particles of <phase> per unit volume of space.
Function Name: NumberDensityPhase<n>
Dimensions: [/Volume]
Default units: /m3
Type: Scalar
Activated by: Massless Particles model
Number Density of [Species]
Displays the number of particles in 1 / m 3 . Calculated by the molar concentration multiplied by the Avogadro constant, N A . A separate scalar field function is available for each species.
Function Name: NumberDensity<n>
Dimensions: [/Volume]
Default units: /m3
Type: Scalar
Activated by: Electrochemical Species
Number of AMG cycles <variable> (CF, with Expert Driver enabled)

The number of multigrid cycles per iteration.

Function Name: NoAMGCyclesED
Dimensions: [Dimensionless]
Default units: N/A
Type: Scalar
Activated by: Flow models
Number of Collisions
The number of collisions in a cell for a particular time-step. (No Time Counter) (Temporary)
To access this field function, select the Solvers > Lagrangian Multiphase node and activate Temporary Storage Retained.
Function Name: NumberofCollisions
Dimensions: [Dimensionless]
Default units: N/A
Type: Scalar
Activated by: NTC Collision Model
Number of DMR Retained Species
Available when the chemistry acceleration property, Dynamic Mechanism Reduction, is activated. Displays the actual number of species from the full chemical mechanism that the CVODE solver retains and solves for.
Function Name: DmrRetainedSpeciesNumber
Dimensions: [Dimensionless]
Default units: N/A
Type: Scalar
Activated by: Complex Chemistry model
NusseltNumber
The non-dimensional heat transfer coefficient is calculated as:
N u = q ˙ w a l l T r e f T w a l l L r e f k r e f
where:
  • q ˙ w a l l is the wall heat flux.
  • T r e f is the specified Reference Temperature.
  • T w a l l is the temperature at the wall.
  • L ref is the specified Reference Length.
  • k r e f is the specified Reference Thermal Conductivity.
Function Name: NusseltNumber
Dimensions: [Dimensionless]
Default units: N/A
Type: Scalar
Activated by: Coupled Energy, Segregated Fluid Enthalpy, Segregated Fluid Temperature