Péclet number

{
  "id": "MLC-T-MET-007832",
  "term": "Péclet number",
  "field": "Meteorology and atmospheric science",
  "definition": "A dimensionless quantity that characterizes the ratio of advective transport rate to diffusive transport rate of a physical quantity, such as heat or mass, within a fluid flow. In atmospheric science, it indicates the relative strength of bulk fluid motion compared to molecular diffusion in transferring atmospheric constituents. A high Péclet number suggests that advection dominates the transport process.",
  "url": "https://mlchart.com/terminology/meteorology/peclet-number/"
}