Page 33 - Think About Machinery and Engineering in Nature
P. 33

HYDRODYNAMIC FIN BUMPS


                      Humpback whales have bumps on

                        their fins. This design feature has

                  been found to increase fin efficiency.



                                                    When the bump

                                                    design is copied,

                                                    Manmade blades


                                                    are:

                                                    1. more powerful

                                                    2. More efficient

                                                    3. Faster

                                                    4. Have less drag

                                                    5. Work well even


                                                    when turning

                                                    slowly.












                                                    Manmade copies of

                                                    whale bump design

                                                    are 20% better than

                                                    flat blades.
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