Aerodynamics, Physics, Numerical Methods, Differential Equations, Catenary.
D, rho, U, c_parallel, c_perp should be set by the user. Then the initial condition of H_0 and V_0 should be defined, it means the force at the end of the rope. In the case of no weight or parachute H and V are zero. In case of weight at the end of the rope, H_0 will be equal to the weight. In the