Daniel Bernoulli (1700 – 1782) derived the famous fluid equation named

"Named after" sounded better to my ear too, but both are correct. That's why we want to prioritize the meaning over idioms we are unsure of.

I googled it and I've pasted below what I found in this article by Grammar Girl: https://www.quickanddirtytips.com/educa ... d-namesake

‘Named For’ or ‘Named After’?
Technically, according to Garner’s Modern English Usage, when a person or thing is named for someone, it’s an honor. For example, roads, schools, libraries, hospitals, and airports are named for people—to honor them—and you would say:

The annual Agatha Award is named for Agatha Christie and awards prizes to mystery and crime writers.

When a person or thing is named after someone, it can also be an honor, but it doesn’t have to be. So you could say:

The Pulitzer Prize is named after Joseph Pulitzer, a powerful newspaper publisher who left money from his estate to establish the prize.

And you would say that I’m named after my mother’s cousin because it’s not really an honor, it’s more of a remembrance, and you would also say that I’m named after the flower the mignonette because it’s definitely not an honor for the flower.

There may also be an American English-British English difference here. Lynne Murphy, author of the new book “The Prodigal Tongue,” reports that while both “named for” and “named after” are used in American English, British writers are much more likely to use “named after” than “named for.”