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reference length造句

"reference length"是什么意思   

例句與造句

  1. Interestingly, for an aerodynamic profile the reference length depends on the analysis.
  2. This is actually the reason for which most precise sources for airfoil and channel flow data specify the reference length at a pedix to the Reynolds number.
  3. The main design parameter which becomes naturally also a reference length is therefore the profile thickness ( the profile dimension or area perpendicular to the flow direction ), rather than the profile chord.
  4. You stated Nye's article is not referenced enough : that it " lacks significant coverage in reliable sources to establish notability " but your article on Burke is practically equal in reference length.
  5. where L is the reference length that should always be specified : in aerodynamics and airfoil theory usually the airfoil chord c \, is chosen, while in marine dynamics and for struts usually the thickness t \, is chosen.
  6. It's difficult to find reference length in a sentence. 用reference length造句挺難的
  7. On the other hand, the reference length is always an arbitrary parameter, so particular attention should be put when comparing flows around different obstacles or in channels of different shapes : the global Reynolds numbers should be referred to the same reference length.
  8. On the other hand, the reference length is always an arbitrary parameter, so particular attention should be put when comparing flows around different obstacles or in channels of different shapes : the global Reynolds numbers should be referred to the same reference length.
  9. Over a large " Re d " range ( 47 d 5 for circular cylinders; reference length is d : diameter of the circular cylinder ) eddies are shed continuously from each side of the circle boundary, forming rows of vortices in its wake.
  10. In the case of planing crafts, where the waterline length is too speed-dependent to be meaningful, the Froude number is best defined as " displacement Froude number " and the reference length is taken as the cubic root of the volumetric displacement of the hull:
  11. :The third postulate of " Euclid's Elements " : " Given a straight line segment, a circle can be drawn using the segment as radius and one endpoint as center ", shows that the compass was known circa 300 BC . Presumably it is much and much older as an instrument to transfer a reference length.
  12. In fact, the profile chord is usually chosen as the reference length also for aerodynamic coefficient for wing sections and thin profiles in which the primary target is to maximize the lift coefficient or the lift / drag ratio ( i . e . as usual in thin airfoil theory, one would employ the " chord Reynolds " as the flow speed parameter for comparing different profiles ).
  13. The reference length can vary depending on the analysis to be performed : for body with circle sections such as circular cyliners or spheres, one usually chooses the diameter; for an airfoil, a generic noncircular cylinder or a bluff body or a revolution body like a fuselage or a submarine, it is usually the profile chord or the profile thickness, or some other given widths that are in fact stable design inputs; for flow channels usually the hydraulic diameter ) about which the fluid is flowing.

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