Hemodynamics of diseased vessels
The details of blood flow patterns and fluid mechanical forces in vessels affected by atherosclerosis and aneurysm have implications for the diagnosis and treatment of these diseases. Clinical imaging modalities provide insufficient and sometimes misleading information about the risks of atheroslcerotic plaque rupture or aneurysm rupture. Using computational fluid dynamics (CFD) and experimental methods including particle image velocimetry (PIV), we model these flows in order to better understand them.
Blood flow in diseased vessels is complicated by blood’s non-Newtonian behavior at low shear rates; by the tortuous, curved and branching human vasculature; by the tendency of severe atherosclerosis to trigger instability and transitional flow; and by the nonlinear behavior of vascular walls and the interaction between solid and fluid mechanics. We also consider the impact of these complications on our models.
Representative publications include the following:
- Albert* Balaban Neufeld & Rossmann J. Biomechanics, 2014 Link
- Cummins* & Rossmann ASME J. Biomechanical Engg, 2010 Link
- Rossmann J. Mech Behavior Bio Materials, 2010 Link
- Fisher* & Rossmann ASME J. Biomechanical Engg, 2009 Link
- Utter* & Rossmann J. Biomechanics, 2007 Link
- Stroud, Saloner & Berger J. Biomechanical Engg, 2002 Link
Aerodynamics of sports balls
What makes a curveball curve, a cricket ball googly, or a Wiffle ball zig when you thought it would zag? Experiments on sports balls illuminate phenomena such as the transition to turbulence, the Magnus effect, and trapped vortices.
Representative publications include
SOTL, pedagogical, and higher ed scholarship
I’m also committed to progressive engineering education, and to engineering as a facet of prismatic liberal education. Some representative publications in the scholarship of teaching & learning and other higher ed topics: