| 单词 | impact pressure |
| 释义 | > as lemmasimpact pressure impact pressure n. the total pressure in a moving fluid in the direction of flow, being equal (in the case of a fluid of negligible viscosity) to the sum of the dynamic pressure and the static pressure. ΘΚΠ the world > matter > physics > mechanics > force > [noun] > pressure > fluid pressure > specific overpressure1819 head of steam1820 pressure head1856 velocity head1884 velocity pressure1904 impact pressure1919 impact head1928 1919 A. B. Eason Flow & Measurem. Air & Gases xiv. 237 The increase in the value of the impact pressure in the case of wind blowing directly on an opening will be due to the fact that more of the momentum of the air is destroyed than when air blows on the small area of the Pitot tube mouthpiece. 1966 J. W. Daily & D. R. F. Harleman Fluid Dynamics vi. 128 For liquids of small viscosity, Eq. (6–71) can be used to compute the velocity from the stagnation or impact pressure measured on the blunt nose of a probe in a steady flow. < as lemmas |
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