PHYSICS / FLUID DYNAMICS
Estimate quadratic drag from fluid density, relative speed, drag coefficient, and reference area. Inspect the SI equation, substituted inputs, derived result, and physical limitations in one guided workspace.
Use boundary
Estimate quadratic drag from fluid density, relative speed, drag coefficient, and reference area. The page evaluates the displayed equation from your supplied values and presents both symbolic and substituted KaTeX working so the arithmetic can be checked.
F_d=rho v^2 C_d A/2
What you provide
What you receive
Use boundary
Density and drag coefficient are constant and the supplied coefficient matches geometry, orientation, and Reynolds regime.
Use internally consistent units and retain extra precision when carrying the result into another calculation.
Reviewed reference factors