The mean wake structures of a cube (square cylinder) and circular cylinder height-to-width aspect ratio 1.0, at Reynolds number 1.78 × 104 based on the obstacle width, were investigated experimentally. boundary-layer thickness was 0.14 height. study performed using thermal anemometry two-dimensional digital particle image velocimetry (DPIV). Streamwise observed in for both cylinders included we...

A large part of the branching vasculature of the mammalian circulatory and respiratory systems obeys Murray's law, which states that the cube of the radius of a parent vessel equals the sum of the cubes of the radii of the daughters. Where this law is obeyed, a functional relationship exists between vessel radius and volumetric flow, average linear velocity of flow, velocity profile, vessel-wal...

Compressible large-eddy simulations of turbulent flow over a wall-mounted hump with active flow control are performedand comparedwithprevious experiments. Theflow is characterizedby the unsteady separationbefore the steep trailing edge, which naturally reattaches downstream of the hump to form an unsteady turbulent separation bubble. The lowMachnumber large-eddy simulation demonstrated a goodpr...

Large interactive displays have become ubiquitous in our everyday lives, but these displays are designed for the needs of sighted people. In this paper, we specifically address assisting people with visual impairments to aim at a target on a large wall-mounted display. We introduce a novel haptic device, which explores the use of vibrotactile feedback in blind user search strategies on a large ...

IntroductionDriveline infections in patients with a left ventricular assist device (LVAD) are feared due to significant morbidity and mortality. There might be great potential preventive measures at home.Case ReportA 54-year old patient showed deep LVAD (HeartMate III) driveline infection by Pseudomonas aeruginosa shortly after his first shower home. Despite 6 weeks of antibiotics (piperacillin...

Large-eddy simulations of pairs of artificially generated longitudinal vortices embedded in a two-dimensional turbulent boundary layer are performed to study the dynamics of the vortical structures and to provide the unsteady inflow data for use in a future turbomachinery simulation. An immersed boundarymethod is employed to represent the wall-mounted half-delta wings that generate the counter-...

This paper presents an efficient and high-sensitive micro-sensor designed for wall shear stress measurement. The main technical application targeted is flow separation detection for closed-loop active flow control. The sensor is a temperature-resistance transducer operating on heat transfer. The device is micro-structured with three substrate-free wires presenting a high aspect ratio, and perio...

When people need to work with a large collection of information all together, they often put it on a wall, where it is easy to view, annotate, and organize. We have adopted “stick it on the wall” as a metaphor to structure a system and a user interface for interacting with a large-format high-resolution display. This paper describes the user interface and key components of the system design. Th...