论相似准则,风洞尺寸与数据精,准度与关系

本文从相似理论到风洞实验，用大量的论据和事实、说明了风洞实验数据的精度，并不取决于风洞尺寸的大小，而只取决于实验条件及模型尺寸满足Ｎ－Ｓ方程的解的近似程度。文中讨论了怎样大小尺寸的风洞，既满足了空气动力学的研究发展和型号试验，又适合我国国情的经济性要求这个人们普遍关心的问题。最后介绍了ＮＡＳＡ给出的一组能较好满足上述两方面要求，且具有某种唯一性条件的不同Ｍａｃｈ数范围下的风洞最好尺寸，供有关部门和人员参考

ON THE RELATIONSHIP OF THE SIMILARITY CRITERION WIND TUNNEL SCALES AND DATA ACCURACY

It is described that the accuracy of test data rather does depend on the approximate levels of the test conditions and model scales satisfied the solving of N S equation than the wind tunnel scales,which is proved by much argument and the practices from the similar theory to wind tunnel tests in the Report At the same time,It is presented that the advantages many of small wind tunnel and its exceavating potential casses which is not able to toke core,and it is disscused how many scales of the wind tunnel are satisfied the tests of the aerodynamic reaserch and development as well as vehicls and suited to our national economic conditions Finally,a groupe of wind tunnel scalcs suited above two requirements and possessed certain unique condition at different mach number ranges are presented,which are found in NASA RP 1132