Numerical accuracy, numerical stability and calculation time are all important factors in the computational fluid dynamics. In this study, we compare two solution algorithms, the Simplified Marker and Cell (SMAC) method in the MAC-type methods and the Semi-Implicit Method for Pressure-Linked Equation (SIMPLE) algorithm in the SIMPLE-type algorithms, with respect to flow around a square cylinder...

The circular cylinder turbulent wake is studied experimentally using Particle Image Velocimetry (PIV) method. vorticity component parallel to the axis evaluated from measured velocity field. Dynamics of field analysed Oscillation Pattern Decomposition (OPD) 3 dominant modes corresponding 1 st , 2 nd and rd harmonics Strouhal frequency are detected presented. topologies characterized by waves vo...

The body-brain coevolution of aerial life forms has not been developed as far as aquatic or terrestrial locomotion in the field of artificial life. We are studying physically simulated 3D flying creatures by evolving both wing shapes and their controllers. A creature's wing is modeled as a number of articulated cylinders, connected by triangular films (patagia). The wing structure and its motor...

To show the effects of the particles and forced disturbances on the instantaneous large-scale vortex structures in a gas-particle round jet, coherent structures in gas-particle turbulent round jets were investigated experimentally by flow visualization. The 45m and 350m diameter glass beads were used as the particles in the experiments. An acoustic speaker was used to introduce velocity perturb...

The bubble departures from two neighboring brass nozzles (with inner diameter of 1.1 mm) in three liquids: distilled water, mineral, and synthetic engine oils were investigated. numerical simulations used for reconstruction liquid-flow around the departing bubbles. Bubble movements liquid have been recorded using a high speed camera. 2-D paths reconstructed using: Laplacian Gaussian filters, al...

Simulations are presented for flow around pairs of circular cylinders at a Reynolds number 3900. The is assumed to be two-dimensional and incompressible in nature the simulations performed using RANS (Reynolds Averaged Navier Stokes) approach with k-ε model. three different configurations cylinders: A tandem configuration where line joining centre parallel mean direction; side-by-side, perpendi...