Coconut oil vs Olive oil: Spray dynamics
The fluid dynamics of spray calculations depend on many conditions including the nozzle used to create the spray.  The wikipedia article on spray nozzles has a good discussion on how different liquid properties tend to affect spray. Spray information tends to be empirical, so it is not really science at play, it is engineering.

The Institute of Liquid Atomization and Spray Systems is a professional society set up around the science and engineering of spraying.  Atomization and Sprays is a periodical journal set up around this entire topic.  A internet search of 'textbook on spray and atomization' turns up many textbooks on the topic. 

Plenty of manuscripts written by scientists exist providing detailed results of experiments comparing sprays.  An example would be an experiment done comparing the spray of waste cooking oils in an engine when it is used as fuel.  

Summarizing a discussion of all of these experiments is too broad and out of the scope of SE.  If you are interesting in learning about sprays make sure you have some understanding of fluid dynamics.  Conduct a literature review relevant to the spray experiment you have in mind.