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Particle properties

A struct gas <: AbstractProperty defines the properties of particle model. It currently supports the following models:

  • scalar
  • gas-type molecule
  • plasma
KitBase.Scalar — Type
mutable struct Scalar{T, F} <: AbstractProperty

Fluid property for scalar conservation laws

Fields

  • a: Default: 1.0

  • μᵣ: Default: 1.0e-8

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KitBase.Gas — Type
mutable struct Gas{T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11<:Integer, T12} <: AbstractGas

Gas property

Fields

  • Kn: Default: 0.01

  • Ma: Default: 0.0

  • Pr: Default: 1.0

  • K: Default: 2.0

  • γ: Default: 5 / 3

  • ω: Default: 0.81

  • αᵣ: Default: 1.0

  • ωᵣ: Default: 0.5

  • μᵣ: Default: refvhsvis(Kn, αᵣ, ωᵣ)

  • m: Default: 0.001

  • np: Default: 1000

  • fsm: Default: nothing

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KitBase.Mixture — Type
struct Mixture{A, B, C, D, E, F, G, H, I} <: AbstractGas

Multi-component gas property

Fields

  • Kn: Default: 0.01

  • Ma: Default: 0.0

  • Pr: Default: 1.0

  • K: Default: 2.0

  • γ: Default: 5 / 3

  • mi: Default: 1.0

  • ni: Default: 0.5

  • me: Default: 0.5

  • ne: Default: 0.5

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KitBase.Plasma1D — Type
struct Plasma1D{A, B, C, TD, E, F, G, H, I, J, TK, L, M, N, O, P} <: AbstractPlasma

1D plasma property

Fields

  • Kn: Default: 0.01

  • Ma: Default: 0.0

  • Pr: Default: 1.0

  • K: Default: 2.0

  • γ: Default: 5 / 3

  • mi: Default: 1.0

  • ni: Default: 0.5

  • me: Default: 0.5

  • ne: Default: 0.5

  • lD: Default: 0.01

  • rL: Default: 0.01

  • sol: Default: 100

  • χ: Default: 1

  • ν: Default: 1

  • Ap

  • An

  • D

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KitBase.Plasma2D — Type
struct Plasma2D{A, B, C, D, E, F, G, H, I, J, TK, L, M, N, O, P} <: AbstractPlasma

2D plasma property

Fields

  • Kn: Default: 0.01

  • Ma: Default: 0.0

  • Pr: Default: 1.0

  • K: Default: 2

  • γ: Default: 5 / 3

  • mi: Default: 1.0

  • ni: Default: 0.5

  • me: Default: 0.5

  • ne: Default: 0.5

  • lD: Default: 0.01

  • rL: Default: 0.01

  • sol: Default: 100

  • χ: Default: 1

  • ν: Default: 1

  • A1p

  • A1n

  • A2p

  • A2n

  • D1

  • D2

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The fields denote, for example:

  • Kn: reference Knudsen number
  • Ma: reference Mach number
  • Pr: reference Prandtl number
  • K: internal degree of freedom of molecule
  • γ: adiabatic index
  • ω: viscosity index
  • αᵣ: reference $\alpha$ in viscosity evaluation
  • ωᵣ: reference $\omega$ in viscosity evaluation
  • μᵣ: reference viscosity
  • m: mass of each particle
  • np: number of particles

The viscosity is evaluated the following hard-sphere model.

\[\mu = \mu_{ref} \left(\frac{T}{T_{ref}}\right)^{\omega}\]

\[\mu_{ref}=\frac{5(\alpha+1)(\alpha+2) \sqrt{\pi}}{4 \alpha(5-2 \omega)(7-2 \omega)} Kn_{ref}\]