AIRFLOW GENERATOR, MOBILE BODY, AND WIND POWER GENERATION SYSTEM

• Main Authors: MATSUDA HISASHI, SHIMURA NAOHIKO, TANAKA MOTOFUMI, UCHIDA TATSUAKI, OSAKO TOSHIKI
• Format: Patent
• Language: English; Japanese
• Published: 11.06.2015
• Subjects: BLASTING; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; HEATING; LIGHTING; MACHINES OR ENGINES FOR LIQUIDS; MECHANICAL ENGINEERING; OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR; PLASMA TECHNIQUE; PRODUCING MECHANICAL POWER; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OFNEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMICBEAMS; WEAPONS; WIND MOTORS; WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS

PROBLEM TO BE SOLVED: To provide an airflow generator and the like capable of effectively suppressing generation of separation flows and facilitating realizing efficiency improvement.SOLUTION: An airflow generator in an embodiment includes: a first electrode 621; a second electrode 622 provided away from the first electrode 621; and a voltage application unit generating an airflow by applying a pulse-modulated voltage between the first electrode 621 and the second electrode 622. The voltage application unit applies the voltage at a second duty ratio lower than a first duty ratio after starting applying the voltage at the first duty ratio. 【課題】剥離流れの発生を効果的に抑制することが可能であって、効率の向上を容易に実現可能な、気流発生装置等を提供する。【解決手段】実施形態の気流発生装置は、第１電極６２１と、第１電極から離れて設けられた第２電極６２２と、第１電極と第２電極との間にパルス変調された電圧を印加することによって気流を発生させる電圧印加部とを有する。電圧印加部は、第１のデューティ率で電圧の印加を開始した後に、第１のデューティ率よりも小さい第２のデューティ率で電圧の印加を行う。【選択図】図４