... aerodynamics computational fluid dynamics flow control flow simulation iterative methods ventilation vents (mechanical components) wind wind tunnels The ultimate goal of this research is to add unsteady multidimensional wind display to a VE and improve the sense of immersion for a VE user...

...Jin-Hyuk Kim; Jae-Woo Kim; Kwang-Yong Kim This paper presents an optimization procedure for axial-flow ventilation fan design through a hybrid multiobjective evolutionary algorithm (MOEA) coupled with a response surface approximation (RSA) surrogate model. Numerical analysis of a preliminary fan...

... for various model configurations. Results regarding supercavity shape, closure, and ventilation requirements versus Froude number are presented. Conducting experiments in water tunnels introduces blockage effects that are not present in nature. As a result, effects related to flow choking must also...

.... In order to characterize alveolar flow patterns and inhaled particle transport during synchronous ventilation, we have conducted measurements for a range of dimensionless parameters physiologically relevant to the upper acini. Acinar airflow patterns were measured using a simplified in vitro alveolar model...

...D. R. Neal; J. F. Foss An experimental investigation of an aerodynamic shroud applied to an axial ventilation fan system is reported. The aerodynamic shroud consists of a pressurized plenum and Coanda attachment surface, which also serves as the shroud for the fan. This combination delivers...

...Ming-Jyh Chern; Jang-Xing Lee 04 08 2004 05 03 2005 flow control air pollution control industrial pollution ventilation Navier-Stokes equations flow simulation To protect laborers in a working environment containing toxic vapor, particles and contaminants...

...Xiaocheng Zhu; Wanlai Lin; Zhaohui Du The tip leakage flow in an axial ventilation fan with various tip clearances is investigated by experimental measurement and numerical simulation. For a low-rotating-speed ventilation fan with a large tip clearance, both experimental measurement and numerical...

... rotors ventilation performance evaluation aerodynamics design engineering In recent years, much research effort has been concerned with the study of the unsteadiness generated in axial flow turbomachinery. Some researchers have shown encouraging results and provided useful data for further...

... of air remaining in the die cavity at a given time. As a consequence, the minimum vent area which provides good ventilation, and above which the residual air mass in the cylinder is not appreciably further reduced (and even increases in some cases), can be considerably higher than the critical area...

...Michael R. Flynn; Eric D. Sills This paper examines the use of computational fluid dynamics as a tool for predicting human exposure to aerosols generated during compressed air spray painting in cross-flow ventilated booths. Wind tunnel experiments employing a mannequin and non-volatile oil provide...