| 词汇 | instantaneous-velocity |
| 释义 | instantaneous velocity noun[ U ] physics specializeduk /ɪn.stənˌteɪ.ni.əs vəˈlɒs.ɪ.ti/ us /ɪn.stənˌteɪ.ni.əs vəˈlɑː.sə.t̬i/ a calculation that tells you how far and in what direction an object would travel if it continued in the way it was going for one second瞬时速度 Calculations & calculating algebraic algebraically algo algorithmic amount calculate guesstimate interpolation inverse function linear equation mathematical matrix miscalculate miscalculation miscount operator sum sum total triangulate work something out You can also find related words, phrases, and synonyms in the topics: Speed of motion instantaneous velocity | American Dictionaryinstantaneous velocity noun[ U ] us/ˌɪn·stənˈteɪ·ni·əs vəˈlɑs·ɪ·t̬i/ physics a calculation that tells how far and in what direction an object would travel if it continued in the way it was going for one second Examples of instantaneous velocityinstantaneous velocity Instantaneousvelocity measurements were obtained across the pipe for this situation (run 13). However, the instantaneousvelocity vector can deviate significantly from the mean flow direction close to the surface. The instantaneousvelocity gradient is about 2 times larger than the maximum gradient observed in the undisturbed pipe flow. Analysis of the data suggests the existence of a high-shear layer in the instantaneousvelocity profile. Reynolds decomposition by subtracting the long-time-averaged velocity field from the instantaneous velocity field is the traditional technique for decomposing turbulent velocity fields. To do this properly requires much more detailed measurements of the instantaneousvelocity fields than have been obtained so far. Since its core coincides with that of the average vortex, the superimposed ensemble-average velocity field should best approximate its instantaneousvelocity field. The figure clearly shows a perturbation of the instantaneousvelocity about the mean profile. Techniques of hot-wire anemometry were employed which enabled the instantaneous temperature and the instantaneousvelocity to be measured simultaneously at a point in the non-homogeneousturbulent flow field. Instantaneousvelocity profiles at the peak at one spike stage. The instantaneousvelocity fields reveal that a high shear rate produces structures in homogeneous turbulence similar to the ' streaks ' that are present in the sublayer of wall-bounded turbulent shear flows. The magnitude of this effect appears to be comparable to that discussed above and so cannot be omitted from a realistic model of the instantaneousvelocity profiles. The voltage generated in a sense coil on the mass by the magnet directly measures the instantaneousvelocity of the ground. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This will give the "instantaneousvelocity" of a particle, or object, at any particular time "t". From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. However, when motion involves rotation, the instantaneousvelocity of any two points on the body will generally not be the same. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. See all examples of instantaneous velocity These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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