Drag coefficient for a spherical object in creeping flow

Description

In fluid dynamics, the drag coefficient is a dimensionless quantity that is used to quantify the drag or resistance of an object in a fluid environment, such as air or water. For a spherical object,moving under creeping flow conditions, the drag coefficient depends on the sphere’s weight and the fluid properties.

Related formulas

Variables

CdThe drag coefficient (dimensionless)
mThe mass of the falling object (kg)
gStandard gravity
πpi
ρThe density of the fluid through which the object is falling (kg/m3)
νThe kinematic viscosity (m2/s)
ReThe Reynolds number (dimensionless)