About: Mass flux

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In physics and engineering, mass flux is the rate of mass flow. Its SI units are kg m−2 s−1. The common symbols are j, J, q, Q, φ, or Φ (Greek lower or capital Phi), sometimes with subscript m to indicate mass is the flowing quantity. Mass flux can also refer to an alternate form of flux in Fick's law that includes the molecular mass, or in Darcy's law that includes the mass density.

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  • In physics and engineering, mass flux is the rate of mass flow. Its SI units are kg m−2 s−1. The common symbols are j, J, q, Q, φ, or Φ (Greek lower or capital Phi), sometimes with subscript m to indicate mass is the flowing quantity. Mass flux can also refer to an alternate form of flux in Fick's law that includes the molecular mass, or in Darcy's law that includes the mass density. Sometimes the defining equation for mass flux in this article is used interchangeably with the defining equation in mass flow rate. For example, Fluid Mechanics, Schaum's et al uses the definition of mass flux as the equation in the mass flow rate article. (en)
  • 质量通量（mass flux）是指單位時間內通過單位面積的質量，常用j、J、φ或Φ 表示，有時會加下標m表示是針對質量的通量。其國際標準制單位為kg s-1 m-2。 (zh)
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  • 质量通量（mass flux）是指單位時間內通過單位面積的質量，常用j、J、φ或Φ 表示，有時會加下標m表示是針對質量的通量。其國際標準制單位為kg s-1 m-2。 (zh)
  • In physics and engineering, mass flux is the rate of mass flow. Its SI units are kg m−2 s−1. The common symbols are j, J, q, Q, φ, or Φ (Greek lower or capital Phi), sometimes with subscript m to indicate mass is the flowing quantity. Mass flux can also refer to an alternate form of flux in Fick's law that includes the molecular mass, or in Darcy's law that includes the mass density. (en)
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  • Mass flux (en)
  • 质量通量 (zh)
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