Perhaps it's a trivial question, but why does the URL for this Stack Exchange use "scicomp," but the title of the Stack Exchange is "Computational Science"? I ask because the URL and the title seem inconsistent with respect to word order; I would've expected "Scientific Computing" as the title of the Stack Exchange based on the URL. I'm guessing part of the reason "scicomp" was used was to avoid using "compsci," which might confuse people looking to ask questions about computer science.
You've pretty much got it in your question;
compsci is already a common shorthand for Computer Science in a number of spheres. (For example, where I grew up -- just north of Dallas.) To avoid confusion between that subject and this, we opted for
scicomp when doing the URL naming.