A viewport preview of a high viscosity sim that uses a custom HDA emitter that I have developed to have control of every aspect (rate, velocity, scale, xform, etc) of the emission stage.
Also the HDA emitter defines uvs based on poind id (u) and a sample path distance from the centroid of the shape (v), to have correct texture coordinates across the fluid.
Finally a very simple setup with a gas linear combination microsolver to control the rate of change of the viscosity attribute over time.

Average sim frame: 40 seg. (particle separation: 0.04; grid scale: 1.5; substeps: 1-4)

The final render done by Richard McDaniel is here vimeo.com/49735399

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