fp Namespace Reference

Functions
Real	reynolds (Real rho, Real vel, Real L, Real mu)
	Compute Reynolds number. More...
DualReal	reynolds (DualReal rho, DualReal vel, DualReal L, DualReal mu)
Real	prandtl (Real cp, Real mu, Real k)
	Compute Prandtl number. More...
DualReal	prandtl (DualReal cp, DualReal mu, DualReal k)
Real	grashof (Real beta, Real T_s, Real T_bulk, Real L, Real rho, Real mu, Real gravity_magnitude)
	Compute Grashof number. More...
DualReal	grashof (DualReal beta, DualReal T_s, DualReal T_bulk, DualReal L, DualReal rho, DualReal mu, DualReal gravity_magnitude)
Real	laplace (Real sigma, Real rho, Real L, Real mu)
	Compute Laplace number. More...
DualReal	laplace (DualReal sigma, DualReal rho, DualReal L, DualReal mu)
Real	thermalDiffusivity (Real k, Real rho, Real cp)
	Compute thermal diffusivity. More...
DualReal	thermalDiffusivity (DualReal k, DualReal rho, DualReal cp)
Real	peclet (Real vel, Real L, Real diffusivity)
	Compute Peclet number. More...
DualReal	peclet (DualReal vel, DualReal L, DualReal diffusivity)

Function Documentation

grashof() [1/2]

DualReal fp::grashof	(	DualReal	beta,
		DualReal	T_s,
		DualReal	T_bulk,
		DualReal	L,
		DualReal	rho,
		DualReal	mu,
		DualReal	gravity_magnitude
	)

Definition at line 49 of file DimensionlessFlowNumbers.C.

{
  return gravity_magnitude * beta * std::abs(T_s - T_bulk) * std::pow(L, 3) * (rho * rho) /
         (mu * mu);
}

grashof() [2/2]

Real fp::grashof	(	Real	beta,
		Real	T_s,
		Real	T_bulk,
		Real	L,
		Real	rho,
		Real	mu,
		Real	gravity_magnitude
	)

Compute Grashof number.

Parameters

beta	Thermal expansion coefficient [1/K]
T_s	Surface temperature [K]
T_bulk	Bulk temperature [K]
L	Characteristic length [m]
rho	Density [kg/m^3]
mu	Dynamic viscosity [Pa-s]
gravity_magnitude	Gravitational acceleration magnitude

Returns

Grashof number

Definition at line 42 of file DimensionlessFlowNumbers.C.

{
  return gravity_magnitude * beta * std::abs(T_s - T_bulk) * std::pow(L, 3) * (rho * rho) /
         (mu * mu);
}

laplace() [1/2]

DualReal fp::laplace	(	DualReal	sigma,
		DualReal	rho,
		DualReal	L,
		DualReal	mu
	)

Definition at line 68 of file DimensionlessFlowNumbers.C.

{
  return sigma * rho * L / (mu * mu);
}

laplace() [2/2]

Real fp::laplace	(	Real	sigma,
		Real	rho,
		Real	L,
		Real	mu
	)

Compute Laplace number.

Parameters

sigma	Surface tension [N/m]
rho	Density [kg/m^3]
L	Characteristic length [m]
mu	Dynamic viscosity [Pa-s]

Returns

Laplace number

Definition at line 62 of file DimensionlessFlowNumbers.C.

{
  return sigma * rho * L / (mu * mu);
}

peclet() [1/2]

DualReal fp::peclet	(	DualReal	vel,
		DualReal	L,
		DualReal	diffusivity
	)

Definition at line 92 of file DimensionlessFlowNumbers.C.

{
  return std::fabs(vel) * L / diffusivity;
}

peclet() [2/2]

Real fp::peclet	(	Real	vel,
		Real	L,
		Real	diffusivity
	)

Compute Peclet number.

Parameters

vel	Velocity [m/s]
L	Characteristic length [m]
diffusivity	Diffusivity

Returns

Peclet number

Definition at line 86 of file DimensionlessFlowNumbers.C.

{
  return std::fabs(vel) * L / diffusivity;
}

prandtl() [1/2]

DualReal fp::prandtl	(	DualReal	cp,
		DualReal	mu,
		DualReal	k
	)

Definition at line 36 of file DimensionlessFlowNumbers.C.

{
  return cp * mu / k;
}

prandtl() [2/2]

Real fp::prandtl	(	Real	cp,
		Real	mu,
		Real	k
	)

Compute Prandtl number.

Parameters

cp	Isobaric specific heat [J/K]
mu	Dynamic viscosity [Pa-s]
k	Thermal conductivity [W/m-K]

Returns

Prandtl number

Definition at line 30 of file DimensionlessFlowNumbers.C.

{
  return cp * mu / k;
}

reynolds() [1/2]

DualReal fp::reynolds	(	DualReal	rho,
		DualReal	vel,
		DualReal	L,
		DualReal	mu
	)

Definition at line 24 of file DimensionlessFlowNumbers.C.

{
  return rho * std::fabs(vel) * L / mu;
}

reynolds() [2/2]

Real fp::reynolds	(	Real	rho,
		Real	vel,
		Real	L,
		Real	mu
	)

Compute Reynolds number.

Parameters

rho	Density [kg/m^3]
vel	Velocity [m/s]
L	Characteristic length [m]
mu	Dynamic viscosity [Pa-s]

Returns

Reynolds number

Definition at line 18 of file DimensionlessFlowNumbers.C.

{
  return rho * std::fabs(vel) * L / mu;
}

thermalDiffusivity() [1/2]

DualReal fp::thermalDiffusivity	(	DualReal	k,
		DualReal	rho,
		DualReal	cp
	)

Definition at line 80 of file DimensionlessFlowNumbers.C.

{
  return k / (rho * cp);
}

thermalDiffusivity() [2/2]

Real fp::thermalDiffusivity	(	Real	k,
		Real	rho,
		Real	cp
	)

Compute thermal diffusivity.

Parameters

k	Thermal conductivity [W/m-K]
rho	Density [kg/m^3]
cp	Isobaric specific heat [J/K]

Returns

Thermal diffusivity

Definition at line 74 of file DimensionlessFlowNumbers.C.

{
  return k / (rho * cp);
}