Friction factor

{
  "id": "MLC-T-CHM-004675",
  "term": "Friction factor",
  "field": "Chemistry",
  "definition": "The ratio of the resisting force acting along the surface on a sliding body to the force pressing the two surfaces together, a dimensionless number that was formerly called the coefficient of friction. In fluid dynamics the same name is given to a different dimensionless quantity, the Darcy friction factor, which relates the pressure drop in a pipe to the flow and for laminar flow equals 64 divided by the Reynolds number.",
  "synonyms": [
    "friction coefficient"
  ],
  "subject": "Chemistry and Human Health",
  "see_also": [
    "coefficient"
  ],
  "references": [
    "PAC, 1996, 68, 957. 'Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)' on page 974 (https://doi.org/10.1351/pac199668040957)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/friction-factor/"
}