  Blade envelopes offer a set of data-driven tolerance guidelines for
manufactured components based on aerodynamic analysis. In Part I of this
two-part paper, a workflow for the formulation of blade envelopes is described
and demonstrated. In Part II, this workflow is extended to accommodate multiple
objectives. This allows engineers to prescribe manufacturing guidelines that
take into account multiple performance criteria. The quality of a manufactured
blade can be correlated with features derived from the distribution of primal
flow quantities over the surface. We show that these distributions can be
accounted for in the blade envelope using vector-valued models derived from
discrete surface flow measurements. Our methods result in a set of variables
that allows flexible and independent control over multiple flow characteristics
and performance metrics, similar in spirit to inverse design methods. The
augmentations to the blade envelope workflow presented in this paper are
demonstrated on the LS89 turbine blade, focusing on the control of loss, mass
flow and the isentropic Mach number distribution. Finally, we demonstrate how
blade envelopes can be used to visualize invariant designs by producing a 3D
render of the envelope using 3D modelling software.
