CDF for a secret business jet modification

We have invented a new range-increasing jet modification similar in effect to winglets, but not winglets. Their effect is additive to winglets if present. Before we start to cut metal we'd like to model our modification using Computational Fluid Dynamics (software like ANSYS or OpenFOAM) to validate our approach and fine-tune it a bit. We already have an STL model of the aircraft and are finishing-up our mesh using Pointwise, so all we're looking for is the actual CFD analysis.

We're want to analyze the model for speeds up to Mach 0.87 with and without our modification. If we are correct, our modification should result in a 15 percent range increase or a modest rise in max cruise. Further funding depends on these results so of course we are in a hurry. A second (different) modification is also planned to follow, so this may become ongoing work.