Displacement Effects on Pitot Tubes with Rectangular Mouths

[1]  J. H. Preston.  The Determination of Turbulent Skin Friction by Means of Pitot Tubes , 1954, The Journal of the Royal Aeronautical Society.

[2]  Alan Quarmby.  On the Use of the Preston Tube in Concentric Annuli , 1967, The Journal of the Royal Aeronautical Society.