| 词汇 | lift-coefficient |
| 释义 | BETA lift coefficientcollocation in Englishmeanings of liftand coefficientThese words are often used together. Click on the links below to explore the meanings. lift noun uk /lɪft/ us /lɪft/ UK a device like a box that moves up and down, carrying people or goods from one floor of a building to another or taking people up and down underground in ... See more at lift coefficient noun[ C ] uk /ˌkəʊ.ɪˈfɪʃ.ənt/ us /ˌkoʊ.ɪˈfɪʃ.ənt/ a value, in mathematics, that appears in front of and multiplies ... See more at coefficient Examples of lift coefficientlift coefficient The liftcoefficient is very sensitive to various numerical parameters. The numerical results for liftcoefficient are summarized in figure 14. The flow exhibits characteristic force pulsations with distinct regions of high and low values of the drag and liftcoefficient (see figure 2). An expression for the liftcoefficient at small clearance and angle of attack, valid for moderate aspect ratio, is derived. The two-dimensional flat plate airfoil is examined in detail and results for upper and lower surface pressure distribution and liftcoefficient are compared with a numerical solution. Hence, a unit-order liftcoefficient and an optimum lift/drag ratio in the range 5-10 are attainable even in the presence of massive flow separation in this case. Forward-swept wings yield a higher maximum liftcoefficient, reduced bending moments, and delayed stall when compared to more traditional wing shapes. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The more elongated the sail, the less lift-induced drag alters value of the liftcoefficient. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Together these high-lift devices produced a maximum wing liftcoefficient of 3.0 (based on the flap-retracted wing area). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. If the angle of attack and velocity remain constant, an increase in the liftcoefficient will result, which accounts for the floating effect. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Increasing angle of attack is associated with increasing liftcoefficient up to the maximum liftcoefficient, after which liftcoefficient decreases. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In conjunction with a slat, the increase in maximum liftcoefficient can be 50% or even 60%. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. As the wing descends, the angle of attack and liftcoefficient increase which tends to restore the wing to its original angle of attack. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It is also useful to show the relationship between section liftcoefficient and drag coefficient. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. For a symmetric airfoil, as angle of attack and liftcoefficient change, the center of pressure does not move. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. 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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