Diesel-operated Load Haul Dumper (LHD) vehicles are commonly used in underground coal mines. Despite their value as utility vehicles, the main drawback of these vehicles is that they generate diesel particulate matter (DPM), a known carcinogenic agent. In this work, an attempt is made to model DPM flows generated by LHDs in an underground coal mine environment for different DPM flow and intake ...

Air flows with supersonic speeds are used in many cases, for example, as aircraft air intakes, wind tunnels, and energy separation devices. In cases it is necessary to decelerate the flow sonic speeds. Traditionally deceleration realized through shocks system, which leads total pressure losses. The article considers method of using permeable surfaces. this case, process occurs without and, ther...

The present paper performs experimental and numerical investigations on the global performance and internal flow of a supersonic air ejector. The effects of operation parameters and geometrical factor on the air ejector performance have been analyzed. The results show that: the static wall pressure and axisymmetric line static pressure remain constant in critical mode under different discharged...

STATIC aeroelastic analysis capability that calculates A flexible air loads for generic configuration wings was developed. It was made possible by integrating a finite element structural analysis code (MSWNASTRAN) and a panel code of aerodynamic analysis based on linear potential flow theory. The framework already built in MSC/NASTRAN was used, and the aerodynamic influence coefficient matrix w...