Flow around a marine propulsor under crashback operating condition is computed using the large eddy simulation methodology. The incompressible NavierStokes equations are simulated in a rotating frame of reference that rotates with the propulsor. A nondissipative and robust finite volume method developed by Mahesh et al. (2004) is used on unstructured grids. The simulation yields good mean value...

Well-designed cannulae must allow good flow rate and minimize nonphysiologic load. Venous cannulae generally have side holes to prevent the rupture of blood vessel during perfusion. Optimizing side hole angle will yield more efficient and safe venous cannulae. A numerical modeling was used to study the effect of the angle (0°-45°) and number (0-12) of side holes on the performance of cannulae. ...

BACKGROUND AND PURPOSE Vertebrobasilar ischemia has been attributed to a reduction of net vertebral artery flow volume, the product of mean flow velocity and the cross-sectional area of the vessel. It can be determined by duplex sonography. There are no reference values for vertebral artery flow volume in an age group representative of patients with cerebrovascular disease. METHODS We examine...

Characteristics of blood-flow velocities were investigated at different sites in two types of coronary artery bypass grafts, sequential saphenous vein grafts (SSVG) and internal mammary artery grafts (IMAG). The latter appear to have the longest life span. The patency rate of the side-to-side anastomosis of the SSVG is better than that of the end-to-side anastomosis. The SSVG was anastomosed to...

To develop a more efficient and optimal artificial kidney, many experimental approaches have been used to study mass transfer inside, outside, and cross hollow fiber membranes with different kinds of membranes, solutes, and flow rates as parameters. However, these experimental approaches are expensive and time consuming. Numerical calculation and computer simulation is an effective way to study...

We present a dynamic control-flow analysis and state classifier for graphical user interfaces. Search engines, end-user programming interfaces, and automated testers exploit such information, but are challenged by clientside and serverside scripts obscuring it: our analysis succeeds on popular web applications that contain both. We further motivate such analyses. First, we introduce a new type ...