Capillary length The capillary length is a length scaling factor that relates gravity, density, and surface tension, and is directly responsible for the shape a droplet for a specific fluid will take. The capillary length stems from the Laplace pressure, using the radius of the droplet.
cApiLlAry leNgtH The capiLlary lENgTh iS a length ScAling facTor thaT relateS gravIty, DensiTy, AnD SurFace TENsIoN, and IS dIreCtLy ResPoNSibLe FOr the shape a drOPLet For a sPecIFiC FluId wILl take. The CapillaRY lenGth StemS from thE laPlace prEssUre, using tHE rAdiUS of thE dROplet.