I read somewhere (too uninterested to look it up) that one of the biggest aero losses with wheels/tires were the vortices generated by the air hitting a wide tire and then sucking into the lower-pressure area of the narrow rim, and that while ogive rim section might be optimal, even a box-section rim was good if the tire and rim were the same width, and no amount of "aero" depth wade up for fat tires on skinny rims .... in short, match mounted tire width the rim width for a smooth transition if you wanted to gain any aero benefit from rim shape.
That is possibly part of the wider rim cross-sections (inner and outer widths) we have been seeing in the past several years---mushroom tires on skinny wheels suck, literally.