Study on prediction of ground effect test data
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摘要: 基于低速风洞试验的不可压缩势流理论,针对飞机地效试验,提出由无地板下的试验数据通过计算得到任意地板高度下相应数据的方法。将利用此方法得到的计算结果与带地板试验数据对比,论证了该方法的有效性。进一步研究表明,采用已有的带地板试验数据对计算结果进行差量修正,可有效减小该方法的计算误差。Abstract: Based on the incompressible potential flows theory of low speed wind tunnel test, for the test of aircraft ground effect,a method is proposed to calculate and obtain the correspond-ing data for different floor heights of floor from the test data without the floor.The validity of the method is demonstrated by comparing the calculated results with the test data.Meanwhile, correcting the calculated results corresponding to existing test data with the floor can decrease the error of the data predicted by the method.
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