For an orientable surface of finite type equipped with a flat metric holonomy order [Formula: see text], the set maximal embedded cylinders can be empty, non-empty, finite, or infinite. The case when text] is well-studied as such surfaces are (semi-)translation surfaces. Not only always infinite, core curves form infinite diameter subset curve complex. In this paper we focus on and construct ex...

This paper theoretically describes and experimentally verifies two mechanisms leading to longitudinal dispersion of a passive tracer in a random array of circular cylinders. We focus on moderate Reynolds numbers of order 10–1000, specifically the range characterized by unsteady cylinder wakes. In this regime, two mechanisms contribute to dispersion, each associated with a distinct region of the...

This note studies the accuracy of Isogeometric Analysis (IGA) applied in the simulation of incompressible flows around a cylinder in two and three dimensions. Quantities of interest, like the drag coefficient, the lift coefficient, and the difference of the pressure between the front and the back of the cylinder are monitored. Results computed with standard finite element methods are used for c...

Due to the complex geometry and thermos-mechanical loading, cylinder heads are the most challenging parts among all parts engines. They must endure cyclic thermal and mechanical loading throughout their lifetime. Cast aluminum alloys are normally quenched after solution treatment process to improve aging responses. Rapid quenching can lead to high residual stress. Residual stress is one of the ...

Two conformal Finite-Di erence Time-Domain (FDTD) methods are considered, which eliminate the e ects of the stair-step approximation inherent at low points per wavelength (PPW). The rst, proposed by Jurgens et al. [IEEE Trans. Antennas Propagat., 40, 357{366, 1992], uses the contour path method. The second, proposed by Yee et al. [IEEE Trans. Antennas Propagat., 40, 1068{1075, 1992], uses overl...