Richard Nakka's Experimental Rocketry Web Site


Grain Area Calculations


Grain basic dimensions
Propellant grain basic dimensions -- Hollow cylindrical grain (may or may not have frustum)

Grain outer area
Outer surface area is given by

Grain core area
Core surface area is given by

Grain end area
Surface area of each end is given by

Grain frustum end area
Surface area of the frustum end is given by

Grain frustum area
Surface area of the frustum is given by

Other terms in the equations are defined as

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