| 单词 | impact tube |
| 释义 | > as lemmasimpact tube impact tube n. a thin tube (usually rigid with a right-angled bend) which may be placed in a flow of fluid with an open end facing upstream, so that the impact pressure in the fluid may be found by measuring the pressure in the tube; cf. pitot tube n. at pitot n.2 1a. ΘΚΠ the world > matter > liquid > liquid flow > action or process of flowing > [noun] > rate of flow > instrument to regulate or measure rate > specifically water pressure kymograph1901 impact tube1916 1916 Trans. Amer. Soc. Mech. Engin. 37 1410 For high pressures, the manometer attached to the impact tube can be replaced by a mercury column or steam gage attached to a receiver in the main where velocity is largely reduced. 1934 J. H. Perry Chem. Engineers' Handbk. 689 The length and shape of the tip, so long as the opening faces upstream, usually have little effect upon the head indicated by an impact tube. 1966 J. W. Daily & D. R. F. Harleman Fluid Dynamics ix. 178 The actual readings from impact tubes will depend both on the viscous effect and on the size of the pressure-sensing hole in the probe tip. < as lemmas |
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