Calculates a translational drag force based on the square of the object's velocity and the planform area. More...

Inheritance diagram for AerodynamicObjects.Aerodynamics.DragModel:

Classes
class	DragModel2D

Public Member Functions
AerodynamicLoad	GetAerodynamicLoad (AeroObject ao)
	Calculate the aerodynamic force of drag acting on the object. More...

void	UpdateDimensionValues (AeroObject ao)
	Calculates and stores the object's dimensions in the appropriate nomenclature, i.e. More...

float	GetDragCoefficient ()
	Calculate an approximate drag coefficient based on the pressure drag coefficients in each axis. More...

AerodynamicLoad	GetAerodynamicLoad (AeroObject ao)
	Compute the aerodynamic load acting on the aerodynamic object. More...

void	UpdateDimensionValues (AeroObject ao)
	Calculate and store any values which only depend on the object's dimensions. More...

Public Attributes
Vector3	CDS
	The vector of drag area coefficients for the object. More...

float	Cf

float	reynoldsNumber

float	resolvedDragArea

DragModel2D	xAxisModel = new DragModel2D()

DragModel2D	yAxisModel = new DragModel2D()

DragModel2D	zAxisModel = new DragModel2D()

AerodynamicLoad	myAerodynamicLoad

Static Public Attributes
const float	CD_normalFlatPlate = 1.2f
	The drag coefficient of a flat plate when aligned normal to the fluid flow. More...

const float	CD_roughSphere = 0.5f
	The drag coefficient of a rough sphere. More...

Detailed Description

Calculates a translational drag force based on the square of the object's velocity and the planform area.

The drag coefficient for the object is determined according to the ratios of the object's axes, i.e. an object shaped like a flat plate will have a much higher drag coefficient than a spherical object.

Member Function Documentation

◆ GetAerodynamicLoad()

AerodynamicLoad AerodynamicObjects.Aerodynamics.DragModel.GetAerodynamicLoad ( AeroObject ao )

Calculate the aerodynamic force of drag acting on the object.

This includes pressure and shear drag.

Implements AerodynamicObjects.Aerodynamics.IAerodynamicModel.

◆ GetDragCoefficient()

float AerodynamicObjects.Aerodynamics.DragModel.GetDragCoefficient ( )

Calculate an approximate drag coefficient based on the pressure drag coefficients in each axis.

Resolved using the velocity direction.

Returns: Pressure Drag Coefficient

◆ UpdateDimensionValues()

void AerodynamicObjects.Aerodynamics.DragModel.UpdateDimensionValues ( AeroObject ao )

Calculates and stores the object's dimensions in the appropriate nomenclature, i.e.

span thickness chord.

Implements AerodynamicObjects.Aerodynamics.IAerodynamicModel.

Member Data Documentation

◆ CD_normalFlatPlate

const float AerodynamicObjects.Aerodynamics.DragModel.CD_normalFlatPlate = 1.2f

static

The drag coefficient of a flat plate when aligned normal to the fluid flow.

Usually set as 1.2 in the literature. (dimensionless)

◆ CD_roughSphere

const float AerodynamicObjects.Aerodynamics.DragModel.CD_roughSphere = 0.5f

static

The drag coefficient of a rough sphere.

Usually set as 0.5 in the literature. (dimensionless)

◆ CDS

Vector3 AerodynamicObjects.Aerodynamics.DragModel.CDS

The vector of drag area coefficients for the object.

(dimensionless)

◆ Cf

float AerodynamicObjects.Aerodynamics.DragModel.Cf

◆ myAerodynamicLoad

AerodynamicLoad AerodynamicObjects.Aerodynamics.DragModel.myAerodynamicLoad

Initial value:

= new AerodynamicLoad()
        {
            moment = Vector3.zero,
            force = Vector3.zero
        }

◆ resolvedDragArea

float AerodynamicObjects.Aerodynamics.DragModel.resolvedDragArea

◆ reynoldsNumber

float AerodynamicObjects.Aerodynamics.DragModel.reynoldsNumber

◆ xAxisModel

DragModel2D AerodynamicObjects.Aerodynamics.DragModel.xAxisModel = new DragModel2D()

◆ yAxisModel

DragModel2D AerodynamicObjects.Aerodynamics.DragModel.yAxisModel = new DragModel2D()

◆ zAxisModel

DragModel2D AerodynamicObjects.Aerodynamics.DragModel.zAxisModel = new DragModel2D()

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

C:/Unity/AO 2/Assets/AO/Scripts/Aerodynamics/DragModel.cs

Classes

Public Member Functions

Public Attributes

Static Public Attributes