1. The problem statement, all variables and given/known data Let v = -j be the velocity field of a fluid in 3 dimensional space. Computer the flow rate through the T of a triangular region with vertices (1,0,0) (0,1,0) (0,0,1) oriented with upward pointing normal vector 2. Relevant equations 3. The attempt at a solution So can I use stokes theorem here to find the flux? ∫∫∇xF dS where F is the velocity field? and then since this is a vector suface integral dS will equal n du dv? What are my limits of integration? How do I parameterize this triangle in terms of u and v?