GravityEngine2.EarthAtmosphere Class Reference

Computes the acceleration due to drag in the Earth's atmosphere for a given height and velocity. More...

Static Public Member Functions
static int double3 a_out	Accel (ref ExternalAccel.EAStateData eaState, ref ExternalAccel.EADesc eaDesc, NativeArray< double3 > data, double scaleLtoKm, double scaleTtoSec, double scaleAccelToSI)
static double3[]	Alloc (double heightKm, double coeffDrag, double xsecArea, double massKg, uint massLU)
	Create a data[] block for core physics parameters/data and initialize.

Static Public Attributes
static int	status
	Determine acceleration due to atmospheric drag based on an exponential Earth atmopsphere model with a nominal density table. (Vallado 5th p572).
const int	STATUS_IMPACT = 1
const int	STATUS_NAN = 2
const int	STATUS_OK = 0

Detailed Description

Computes the acceleration due to drag in the Earth's atmosphere for a given height and velocity.

This is a SELF force because it depends on the mass of the specific body.

Member Function Documentation

Alloc()

static double3[] GravityEngine2.EarthAtmosphere.Alloc ( double heightKm, double coeffDrag, double xsecArea, double massKg, uint massLU )

static

Create a data[] block for core physics parameters/data and initialize.

Parameters

heightKm
coeffDrag
xsecArea
massKg
massLU

Returns

Member Data Documentation

status

int GravityEngine2.EarthAtmosphere.status

static

Determine acceleration due to atmospheric drag based on an exponential Earth atmopsphere model with a nominal density table. (Vallado 5th p572).

This requires the current mass of the ship. For a re-entering ship this can be configured and remain constant. For ascent the mass will be highly time varying and needs to be linked to the ExtAccel representing the real-time mass. For maximum accuracy this is done on a time-step basis:

• this block can be configured to

Parameters

eaState
eaDesc
data
scaleLtoKm
scaleTtoSec
scaleAccelToSI

Returns

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The documentation for this class was generated from the following file:

• ge2/GE2/Assets/GravityEngine2/Runtime/Core/ExternalAcceleration/EarthAtmosphere.cs