久久精品国产热_中文字幕日韩精品亚洲七区_色综合天天干_啊灬啊灬啊灬快灬深一区2区,成人国产在线视频,欧美高清一区二区,欧美日韩亚洲第一区

Contact Us

Axial Fan Airfoil flow, the size of the angle of attack

Date: 2016-7-27   Click: 1675 Times

"Axial Fan" impellers in the relative motion of the airfoil blade, between the gas and the airfoil is to flow around airfoils. In Airfoil Flow Analysis, the angle defined relative movement direction of the chord line (ie, the connection of the center of curvature of the airfoil trailing edge) of the angle of attack (or angle of attack), red angular size is about the impact of airfoil the most important factor in flow characteristics. When the angle of attack is zero, the blades have a greater lift and smaller frictional resistance. When the angle of attack increases, the dorsal surface of the tail blade flow generating separation force and increased resistance (mainly physical resistance) greater increase in blade lift-drag ratio decreases. When the angle of attack increases to a critical value, the flow separation point forward, the separation zone to expand, resulting in decreased lift dramatically increase drag. This phenomenon is known as flow around a stall (or stall). For this work rely on external fan off the stream is to produce a non-stable condition of the important reasons.

Back to: Industry news

+86-0769-83660708

Home Product News Contact

主站蜘蛛池模板: 怀宁县| 苗栗市| 定襄县| 湖口县| 色达县| 当阳市| 喀什市| 阿勒泰市| 龙山县| 肥西县| 永宁县| 上思县| 垣曲县| 岐山县| 清丰县| 蒙阴县| 丰镇市| 彭泽县| 阿鲁科尔沁旗| 谷城县| 桦川县| 黄浦区| 新乐市| 四会市| 灵寿县| 延边| 东兰县| 商城县| 乌兰察布市| 景德镇市| 罗城| 班戈县| 图木舒克市| 濮阳县| 安吉县| 罗山县| 沂源县| 海伦市| SHOW| 哈密市| 太仆寺旗|