flow rate

• Quantité de fluide (liquide ou gaz) traversant une section donnée par unité de temps, souvent exprimée en litres par seconde ou mètres cubes par heure.

The volume or mass of a fluid, gas, or substance that passes through a given point or surface per unit of time, often measured in liters per second or cubic meters per hour.

1. Volume per unit timeB2formal

   The volume of fluid that passes through a given surface per unit of time.

   débit volumique

   • The flow rate of the river increased after the heavy rain.
   • Engineers measured the flow rate of water through the pipe.
   • The pump's flow rate is 50 liters per minute.

2. Mass per unit timeC1formal

   The mass of a substance that passes through a given surface per unit of time.

   débit massique

   • The mass flow rate of the gas was calculated using the density.
   • The flow rate of the chemical solution is critical for the reaction.
   • They monitored the flow rate of the coolant in the system.