Figure 2From: A Crank–Nicolson finite spectral element method for the 2D non-stationary Stokes equations about vorticity–stream functionsThe absolute error when \(0\le t\le3\) estimated by \(\|\partial_{y}(u_{N}^{n-1}-u_{N}^{n})\|_{0}+\|\partial _{x}(v_{N}^{n-1}- v_{N}^{n})\|_{0}\) (\(1\le n\le30\text{,}000\))Back to article page