Print Email Facebook Twitter The influence of the main flow on the transfer function of tube-transducer systems used for unsteady pressure measurements Title The influence of the main flow on the transfer function of tube-transducer systems used for unsteady pressure measurements Author Tijdeman, H. Bergh, H. Institution National Aerospace Laboratory NLR Date 1972-09-19 Abstract An experimental investigation has been performed, which revealed a considerable difference between the dynamic response characteristics of a tube-trauisducer system with the entrance in still air and one having an airflow across the entrance orifice, The differences observed could be explained theoretically by modifyink the existing calculation model for still air in such a way, that the interaction between the periodically in- and outflow at the tube entrance and the main flow is taken into account. Application of the present knowledge to the results of a joint ONERANLR investigation shows that satisfactory agreement is obtained between pressure distributions measured via tubes and via direct in situ pressure transducers. Subject unsteady aerodynamicspressure measrementsfluid lines To reference this document use: http://resolver.tudelft.nl/uuid:3d3e7e72-7949-4d1a-8043-3194c42edff5 Publisher Nationaal Lucht- en Ruimtevaartlaboratorium Access restriction Campus only Source NLR MP 72023 U Part of collection Aerospace Engineering Reports Document type report Rights (c)1972 National Aerospace Laboratory NLR Files PDF 72023.pdf 31.67 MB Close viewer /islandora/object/uuid:3d3e7e72-7949-4d1a-8043-3194c42edff5/datastream/OBJ/view