Comparative visualization of data from different sources provides useful presentations to highlight similarities or differences. Such methods are valuable for comparing results from numerical flow simulation with images taken during windtunnel experiments. The experimental flow visualization technique represents the surface flow field with oil streaks. We visualized the numerical surface flow f...

Accurate rendering of spatial audio over headphones requires the use of personalized head related transfer functions (HRTFs). These HRTFs are difficult to obtain due to the tedious and expensive measurement process requiring an anechoic chamber. An alternate approach uses accurate 3D meshes of human head and torso and numerical simulation techniques to compute personalized HRTFs. While these si...

The accuracy of the time delay estimation using the direct correlation technique has been theoretically calculated. The random errors of the time delay estimation in digital ultrasonic measurement systems have been studied. The techniques for the time-offlight (ToF) estimation have been discussed. The theoretical equations for analog and discrete case are presented. Numerical simulation has bee...

breaking waves have ability to transport large quantities of sediment and significant impact on coastal structures morphology. hence, modeling of wave breaking is an important subject in coastal and marine engineering. in this research, the periodic wave breaking process on a plane slope is studied experimentally and numerically. laboratory experiments were conducted to record water surface ele...

in this study, a numerical computational fluid dynamics study is conducted in order to predict the aerodynamic forces on the np car. the turbulent air flow around the car is modeled using the realizable k-ε model. first, results are validated against those presented for the ahmed’s body. next, the fluid flow around the car is simulated for different car speeds ( to mph) and flow directions ( to...

in the present work, a meshless method called finite point method (fpm) is developed to simulate the solidification process of a continuously cast steel bloom in both primary and secondary cooling regions. the method is based on the use of a weighted least-square interpolation procedure. a transverse slice of the bloom moving at casting speed is considered as the computational domain and two di...

abstract: in this paper, the results of experimental and numerical simulation of low velocity impact process have been carried out to investigate energy absorption of composite sandwich panels with 3d woven fabrics of glass fibers and epoxy resin. for this purpose, diagrams of force-displacement of the quasi-static and quasi-dynamic impact tests were studied. for the finite element simulation, ...

We developed a method that will enable us to determine mass transfer coefficients for a large number of two phase flow conditions based on numerical simulation. A three-dimensional direct numerical simulation based on the Front Tracking technique taking into account the mass transfer process was chosen for this purpose. The dissolved species concentration in the liquid phase is tracked using a ...

Fracture reservoirs contain most of the oil reserves of the Middle East. Such reservoirs are poorly understood and recovery from fractured reservoirs is typically lower than those from conventional reservoirs. Many efforts have been made to enhance the recovery and production potential of these reservoirs. Fractured reservoirs with high matrix porosity and low matrix permeability need a seconda...