Aerodynamic investigation of a cup anemometer / John D. Hubbard and George P. Brescoll.
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| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington D.C. :
National Advisory Committee for Aeronautics,
1934.
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| Series: | Technical note (United States. National Advisory Committee for Aeronautics) ;
502. |
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| Abstract: | This thesis presents the results of an investigation wherein the change of the normal force coefficient with Reynolds number was obtained statically for a 15.5-centimeter hemispherical cup under the following conditions : (1) Single cup with no interference (2) Single cup with three-cup interference (3) Four cups. The coefficients found in this research vary with Reynolds number and are high as compared with those of Eiffel. The effect of interference upon a single cup is to increase the drag and normal force coefficients. The curve resulting from the summation of the coefficients for four cups agrees with the static torque curve of a Robinson type cup anemometer. |
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| Item Description: | "July 1934." NACA TN number 502. |
| Physical Description: | 24 pages, 9 unnumbered pages : illustrations, tables ; 27 cm. |
| Bibliography: | Includes bibliographical references. |
| Action Note: | will digitize |