drag_module Module

Drag model

Uses

- kind_module
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Used by

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Graph Key

Nodes of different colours represent the following:

Solid arrows point from a submodule to the (sub)module which it is descended from. Dashed arrows point from a module or program unit to modules which it uses.

Subroutines

public pure subroutine drag_acceleration(vrel, cd, area, m, rho, acc)

Acceleration due to atmospheric drag.

Arguments

Type	Intent	Optional	Attributes		Name
real(kind=wp),	intent(in),		dimension(3)	::	vrel	velocity relative to the atmosphere [km/s]
real(kind=wp),	intent(in)			::	cd	spacecraft drag coefficient [--]
real(kind=wp),	intent(in)			::	area	cross-section area [km^2]
real(kind=wp),	intent(in)			::	m	spacecraft mass [kg]
real(kind=wp),	intent(in)			::	rho	atmospheric density [kg/km^3]
real(kind=wp),	intent(out),		dimension(3)	::	acc	drag acceleration vector [km/s^2]