Abstract
An instrument is described which is capable of making Eulerian measurements of microscale fluctuations in the static pressure when it is placed within the turbulent flow of the lower atmospheric boundary layer. The sampling ports are located on an accurately shaped streamlined circular disc; dynamic pressure changes at these ports, due to the flow fluctuations, are small when compared to the static pressure changes. Wind tunnel tests and anin situ test show that the instrument can sample the amplitudes and phases of fluctuations in the static pressure to better than ± 20% and to about ± 5 °, respectively.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Gossard, E. E.: 1960, ‘Spectra of Atmospheric Scalars’,J. Geophys. Res. 65, 3339–3351.
Hinze, J. O.: 1959,Turbulence, An Introduction to Its Mechanism and Theory, McGraw-Hill, Toronto, 586 pp.
Kobashi, Y.: 1957, ‘Measurements of Pressure Fluctuation in the Wake of a Cylinder’,J. Phys. Soc. Japan 12, 533–543.
Kraichnan, R. H.: 1956, ‘Pressure Fluctuations in Turbulent Flow over a Flat Plate’,J. Acoust. Soc. Am. 28, 378–390.
Panofsky, H. A., and Townsend, A. A.: 1964, ‘Change of Terrain Roughness and the Wind Profile’,Quart. J. Roy. Meteorol. Soc. 90, 147–155.
Shaw, R.: 1960, ‘Influence of Hole Dimensions on Static Pressure Measurements’,J. Fluid Mech. 7, 550–564.
Willmarth, W. W., and Wooldridge, C. E.: 1962, ‘Measurements of the Fluctuating Pressure at the Wall Beneath a Thick Turbulent Boundary Layer’,J. Fluid Mech. 14, 187–210.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Elliott, J.A. Instrumentation for measuring static pressure fluctuations within the atmospheric boundary layer. Boundary-Layer Meteorol 2, 476–495 (1972). https://doi.org/10.1007/BF00821550
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00821550