Can I read Blood Flow in a Continuous Flow Ventricular Assist Device on EtoBox?

Blood Flow in a Continuous Flow Ventricular Assist Device by Paul E. Allaire; Houston G. Wood; Ramy S. Awad; Don B. Olsen is a Medicine article available to read on EtoBox.

What is Blood Flow in a Continuous Flow Ventricular Assist Device about?

A numerical analysis was performed to predict the shear stresses, flow rates, and the velocity profiles in a continuous flow ventricular assist device, the CFVAD3. The problem was modeled as a rotating disk over a stationary disk. A variety of clearances was tested for the CFVAD3 coupled with a range of rotational speeds and pressure gradients. Velocity fields were generated using solutions obtained with FLOW3D software (AEA Technology, Pittsburgh, PA, U.S.A.) Analysis of these solutions shows that the pressure differential effect has a stronger influence on the flow than the rotational effect of the impeller Ekman layer. The predicted shear stresses reflect these changes in the volume flow rates and the speeds shown in the velocity profiles. Based on the predictions of the software, the optimum clearance and rotational speed were chosen. The conclusion is that a speed in the range of 2,200-2,400 rpm should be chosen depending on the efficiency of the pump.

Who reads Blood Flow in a Continuous Flow Ventricular Assist Device?

Author

Paul E. Allaire; Houston G. Wood; Ramy S. Awad; Don B. Olsen

Publisher

John Wiley and Sons; Wiley (Blackwell Publishing); Blackwell Publishing Inc.; Wiley (ISSN 0160-564X)

Published

1999

Language

EN

Field

Medicine (Health Sciences)