Abstract Flow of complex fluids in porous structures is pertinent many biological and industrial processes. For these applications, elastic turbulence, a viscoelastic instability occurring at low Re—arising from non-trivial coupling fluid rheology flow geometry—is common relevant effect because significant over-proportional increase pressure drop spatio-temporal distortion the field. Therefore,...

We develop a boundary integral equation solver for elliptic partial differential equations on complex 3D geometries. Our method is efficient, high-order accurate and robustly handles A key component our singular near-singular layer potential evaluation scheme, hedgehog: simple extrapolation of the solution along line to boundary. present series geometry-processing algorithms required hedgehog r...