本公开提供一种基于流动分离的叶片,包括背弧和内弧,所述背弧为叶片的吸力面,所述内弧为压力面;吸力面设置有凹槽;还提供一种基于流动分离的叶片及其提升载荷的方法,包括:步骤S1:获取原型叶片表面压力分布,并基于压力分布获取载荷;步骤S2:对所述原型叶片的吸力面改型挖凹槽,创建局部流动分离条件,并维持其分离的稳定结构,利用上述方法确定改型后的叶片载荷;以及步骤S3:根据不同的影响因素对凹槽进行设置,使叶片的局部或整体载荷增加。

    The disclosure provides a blade based on flow separation. The blade based on the flow separation comprises a back arc and an inner arc, wherein the back arc is a suction surface of the blade, the inner arc is a pressure surface, and a groove is formed in the suction surface. The disclosure further provides a load increasing method of the blade based on the flow separation. The load increasing method of the blade based on the flow separation includes: step 1, obtaining surface pressure distribution of the prototype blade, and obtaining a load based on the pressure distribution; step S2, remodeling the suction surface of the prototype blade, digging the suction surface of the prototype blade to form a groove, establishing local flow separation conditions, keeping a stable structure of the separation, and confirming the load of the blade after being remodeled by using the above method; and step 3, setting the groove according to different influence factors, and increasing the local or overall load of the blade.


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    Titel :

    基于流动分离的叶片提升载荷的方法


    Erscheinungsdatum :

    2022-08-02


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    F01D Strömungsmaschinen [Kraft- und Arbeitsmaschinen oder Kraftmaschinen], z.B. Dampfturbinen , NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / B64C AEROPLANES , Flugzeuge / F04D Strömungsarbeitsmaschinen , NON-POSITIVE-DISPLACEMENT PUMPS / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung