The Effect of Compressibility on the Pressure Reading of a Prandtl Pitot Tube at Subsonic Flow Velocity (1939)
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Figs. 1,2,5,6,7,8 H.A.C.A. Technical Memorandum No. 917 0" 5* 0J99 028 Po Q97 wind tunnel. Figure 5 \p5 025 Fig. 3.- Dimensions of normal Prandtl pitot tube. ; i.3 oao 0.55 QfiO OJB5 070 0.75 0,80 Q85 020 025 I % Figure 6 … Fig. 8.- Approximate solutions of Figure 7 pressure gradient neces- Figure 5-7.- Pressure errors sary to adiabatic formation of recorded by Prandtl flow form rest position (eq. 8a,8b)tube as a result of compressibil- compared to pressure record Pi-Pg ity effect and yawed flow, with Prandtl pitot…
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