Simple mixture density

Calculates component mass from mass fraction and total mixture mass.

Calculates component volume from volume fraction and total volume.

Calculates a linear approximation of a user-provided mixture property from two component masses and properties.

Calculates mixed concentration as a flow-weighted average for a list of streams.

Calculates aluminum mass from volume and user-provided density; it does not use an alloy database.

Calculates concrete density from user-provided mass and volume.