![]() The formulation is purely analytical with a few exceptions. Swept forward will cause wakeĬontraction. Wake contraction/expansion can be observed when comparing straight and swept designs. Tip circulation affects canīe observed when comparing ducted to unducted constant chord designs. The affect of tip circulation has been added recently as well. For educational purposes, you canĪlso run the code without induced velocities (making it an enhanced blade element theory formulation). The new formulation includes induced velocities. The new formulation contains aspects of blade element theory and lifting line theory (a.k.a. Quickly, and requires little computational resources, because it does not attempt to solve the Euler, Navier-Stokes, or Boltzmann equations. As of JanuPROP_DESIGN utilizes a novel solution method that I created. PROP_DESIGN can also handle airfoil and blade sweep. ![]() Therefore, PROP_DESIGN can easilyĬalculate the static condition. ![]() PROP_DESIGN has no light loading limitations either. PROP_DESIGN does not rely upon momentum theory, Theodorsen's theory of propellers, or the Betz condition. ![]()
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