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I. Introduction.

The bamboo copter is known as a bamboo dragonfly, is a traditional toy that has several blades. It can fly by spinning.

In this blog, we simulate a bamboo copter with 2 blades.

II. Approach.

The bamboo copter is calculated by pimpleFoam solver with sixDoFRigidBodyMotion set up in dynamicMeshDic.

Design: 

shaft high                                      = 0.222m

Blade length                                  = 0.056 m

Initial condition:

Initial angular velocity:     w          =7000 rpm.

Moment of inertia:    Ix = Iy          =  0.000018755625 kg.m^2

                                         Iz          = 0.00000225 kg.m^2

                                     Rho          = 1.227  kg/m^3

Weight:                            m          = 0.01 kg

Meshing:

Simulated Results:

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