Numerical Simulation of a Cylinder in Uniform Flow: Application of a Virtual Boundary Method

✍ Scribed by E.M. Saiki; S. Biringen

• Publisher: Elsevier Science
• Year: 1996
• Tongue: English
• Weight: 679 KB
• Volume: 123
• Category: Article
• ISSN: 0021-9991
• DOI: 10.1006/jcph.1996.0036

✦ Synopsis

In this study, a virtual boundary technique is applied to the numerical simulation of stationary and moving cylinders in uniform flow.

stiffness of most moving boundary problems restricts the

This approach readily allows the imposition of a no-slip boundary explicit definition of the forcing term in Peskin's method within the flow field by a feedback forcing term added to the momento small time steps (Tu and Peskin [32]). This method has tum equations. In the present work, this technique is used with a been expanded and implemented in a number of other high-order finite difference method, effectively eliminating spurious problems modeling suspended particulates (Fogelson and oscillations caused by the feedback forcing when used with spectrally discretized flow solvers. Very good agreement is found be-Peskin [12]) and the inner ear (Beyer [3]). tween the present calculations and previous computational and In a related, yet independent, study, Goldstein et al. [15, experimental results for steady and time-dependent flow at low 16] developed a virtual boundary method based on the Reynolds numbers.