Airdata2 computes the impact pressure qc, equivalent airspeed Ve, and the calibrated airspeed Vc. The block Airdata2 is contained in the subsystem Airdata Group of the Beaver model. Other airdata (-related) variables are computed in the blocks Atmosph, Airdata1, and Airdata3, which also contained in the subsystem Airdata Group.
yatm = [rho ps T mu g]' (atmospheric properties, computed in the block Atmosph) yad1 = [a M qdyn]', (speed of sound, Mach number, dynamic pressure, computed in the block Airdata1) {rho : airdensity [kg/m^3] } ps : static pressure [N/m^2] {T : temperature [K] } {mu : dynamic viscosity [kg/(m*s)] } {g : acceleration of gravity [m/s^2] } {a : speed of sound [m/s] } M : Mach number [-] qdyn : dynamic pressure [N/m^2]
The inputvariables which are not actually used by Airdata2 have been displayed between curly braces.
yad2 = [qc Ve Vc]' qc : impact pressure [N/m^2] Ve : equivalent airspeed [m/s] Vc : calibrated airspeed [m/s]