pmc_coag_kernel_brown Module Reference

Brownian coagulation kernel. More...

Functions/Subroutines
subroutine	kernel_brown (aero_particle_1, aero_particle_2, aero_data, env_state, k)
	Compute the Brownian coagulation kernel. More...
subroutine	kernel_brown_minmax (v1, v2, aero_data, env_state, k_min, k_max)
	Compute the minimum and maximum Brownian coagulation kernel. More...
subroutine	kernel_brown_helper (vol_i, den_i, vol_j, den_j, aero_data, temp, pressure, bckernel)
	Helper function that does the actual Brownian kernel computation. More...

Detailed Description

Brownian coagulation kernel.

Function/Subroutine Documentation

kernel_brown()

subroutine pmc_coag_kernel_brown::kernel_brown	(	type(aero_particle_t), intent(in)	aero_particle_1,
		type(aero_particle_t), intent(in)	aero_particle_2,
		type(aero_data_t), intent(in)	aero_data,
		type(env_state_t), intent(in)	env_state,
		real(kind=dp), intent(out)	k
	)

Compute the Brownian coagulation kernel.

Uses equation (15.33) of M. Z. Jacobson, Fundamentals of Atmospheric Modeling Second Edition, Cambridge University Press, 2005.

Parameters

[in]	aero_particle_1	First particle.
[in]	aero_particle_2	Second particle.
[in]	aero_data	Aerosol data.
[in]	env_state	Environment state.
[out]	k	Kernel k(a,b) (m^3/s).

Definition at line 26 of file coag_kernel_brown.F90.

kernel_brown_helper()

subroutine pmc_coag_kernel_brown::kernel_brown_helper	(	real(kind=dp), intent(in)	vol_i,
		real(kind=dp), intent(in)	den_i,
		real(kind=dp), intent(in)	vol_j,
		real(kind=dp), intent(in)	den_j,
		type(aero_data_t), intent(in)	aero_data,
		real(kind=dp), intent(in)	temp,
		real(kind=dp), intent(in)	pressure,
		real(kind=dp), intent(out)	bckernel
	)

Helper function that does the actual Brownian kernel computation.

Helper function. Do not call directly. Instead use kernel_brown().

Uses equation (15.33) of M. Z. Jacobson, Fundamentals of Atmospheric Modeling Second Edition, Cambridge University Press, 2005.

Parameters

[in]	vol_i	Volume of first particle (m^3).
[in]	den_i	Density of first particle (kg/m^3).
[in]	vol_j	Volume of second particle (m^3).
[in]	den_j	Density of second particle (kg/m^3).
[in]	aero_data	Aerosol data.
[in]	temp	Temperature (K).
[in]	pressure	Pressure (Pa).
[out]	bckernel	Kernel k(a,b) (m^3/s).

Definition at line 111 of file coag_kernel_brown.F90.

kernel_brown_minmax()

subroutine pmc_coag_kernel_brown::kernel_brown_minmax	(	real(kind=dp), intent(in)	v1,
		real(kind=dp), intent(in)	v2,
		type(aero_data_t), intent(in)	aero_data,
		type(env_state_t), intent(in)	env_state,
		real(kind=dp), intent(out)	k_min,
		real(kind=dp), intent(out)	k_max
	)

Compute the minimum and maximum Brownian coagulation kernel.

Finds the minimum and maximum kernel values between particles of volumes v1 and v2, by sampling over possible densities.

Parameters

[in]	v1	Volume of first particle (m^3).
[in]	v2	Volume of second particle (m^3).
[in]	aero_data	Aerosol data.
[in]	env_state	Environment state.
[out]	k_min	Minimum kernel value (m^3/s).
[out]	k_max	Maximum kernel value (m^3/s).

Number of density sample points.

Definition at line 58 of file coag_kernel_brown.F90.