1. The problem statement, all variables and given/known data I'm having trouble using equation 2.1 or 2.2 in the article to find the curl of the navier-stokes equation. I understand how to find curl, but can't make sense of the explanation/steps in the document provided by the professor. 2. Relevant equations All relavent equations are included in the two attachments. 3. The attempt at a solution I'm really having trouble getting started. The document provided by my professor says to "First evaluate the '(Beta)yk X v' term, substitute that in (v is the vector discussed at the top)," but the equation at the top looks like a general equation, and I'm starting to get frustrated. Any help/ideas/suggestions would really be appreciated.