FlightPerformance: Compute flight performance parameters

In Josephine-Tetteh/FlightSim-updates: R-Package for estimating energy consumption during avian flight

Description

This function evaluates the power associated with the user-input flight trajectory by using some other functions in this package. It also considers the 3D position of the bird.

Usage

FlightPerformance(BirdMorphParam, FlightSpeedComponents, TrueAirSpeed1,
  TrueAirSpeed2, C_l, C_t)

Arguments

BirdMorphParam	Basic morphological data of bird
FlightSpeedComponents	Calculated flight speed components
TrueAirSpeed1	True airspeed from function TrueAirSpeed1
TrueAirSpeed2	Trueairspeed from function TrueAirSpeed2
C_l	lift coefficent
C_t	thrust coefficient

Details

This function estimates all flight performance parameters by evaluating the various types of aerodynamic forces acting during flight. It also checks for the feasibility of the input trajectory and evaluates the amount of power required at each timestep. It also calculates the mechanical and chemical power required for flight. The function makes use of the inputs for BirdMorphParam and flight speed from FlightSpeedComponents as well as the 3D position of the bird in flight. There is no default value for lift coefficient and thrust coefficient. To accounT for wind effect, the true airspeed is used either from TrueAirSpeed1 or TrueAirSpeed2.

Value

Flight performance parameters made up of a dataset of all associated powers which do not include infinite values. It also investigates the flight types as either straight steady, climbing or descending flight.

References

Norberg, U. M. (2012). Vertebrate flight: mechanics, physiology, morphology, ecology and evolution (Vol. 27). Springer.

Examples

utils::data(trajectory)
trajectory = trajectory
birdpa = BirdMorphParam(0.043, 0.4, 0.0171)
FS.Components = FlightSpeedComponents(trajectory[,4],
  trajectory[,1], trajectory[,2], trajectory[,3])
T.airspeed = TrueAirSpeed1(FS.Components)
FPerformance = FlightPerformance(birdpa,FS.Components,
T.airspeed, C_l = 0.5, C_t = 0.1)

Josephine-Tetteh/FlightSim-updates documentation built on May 9, 2019, 3:26 a.m.