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单词 Equivalent spherical diameter
释义

Equivalent spherical diameter

中文百科

等效球直径

等效球直径英语:equivalent spherical diameter,简称ESD)为一科学名词,是指一不规则外形物体,其体积相同球体的直径。

根据IUPAC的定义,非圆形物体的等效直径等于非圆形物体有相同性质(空气力学、水力学、光学、电学)球体的直径。若考虑在非紊流运动下的物体,等效直径等于斯托克斯定律中的直径。

英语百科

Equivalent spherical diameter 等效球直径

In science, the equivalent spherical diameter (or ESD) of an irregularly shaped object is the diameter of a sphere of equivalent volume.

According to the IUPAC definition, the equivalent diameter of a non-spherical particle is equal to a diameter of a spherical particle that exhibits identical properties (e.g., aerodynamic, hydrodynamic, optical, electrical) to that of the investigated non-spherical particle. For particles in non-turbulent motion, the equivalent diameter is identical to the diameter encountered in the Stokes' law.

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更新时间:2025/6/24 1:40:16