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...

A finite different scheme as well as least-square method is presented for the magneto-thermo analysis of an infinite functionally graded hollow cylinder. The radial displacement, mechanical stresses and temperature as well as the electromagnetic stress are investigated along the radial direction of the cylinder. Material properties are assumed to be graded in the radial direction according to a...

In the paper [Fendley et al., J. Phys. A: Math. Gen., 38 (2005), pp. 315-322], Fendley, Schoutens and van Eerten studied the hard square model at negative activity. They found analytical and numerical evidence that the eigenvalues of the transfer matrix with periodic boundary were all roots of unity. They also conjectured that for an m × n square grid, with doubly periodic boundary, the partiti...

Flow past a square cylinder placed at an angle to the incoming flow is experimentally investigated using particle image velocimetry, hot wire anemometry, and flow visualization. The Reynolds number based on cylinder size and the average incoming velocity is set equal to 410. Data for four cylinder orientations =0, 22.5, 30, and 45° and two aspect ratios AR=16 and 28 are reported. Results are pr...

Wo conformal finite-difference time-domain (FDTD) methods are considered, the contour path (CPFDTD) method of Jurgens et al. 141 and the overlapping grid (OGFDTD) method of Yee et al. [6]. Both TE and TM scattering from a two-dimensional (2-D), perfectly Conducting circular cylinder are used to test the accuracy of the methods for curved surfaces. Also, TE and TM scattering from a 244 perfectly...