Abstract Simulation of the complex, unsteady aerodynamics characterizing Darrieus rotors requires computational tools with a fidelity higher than ubiquitous Blade Element Momentum (BEM) theory. Among them, Actuator Line Method (ALM) stands out in terms accuracy and cost. This approach, however, still fails to resolve vortex-like structures shed at blade ends, overestimating turbine performance ...

The genus Hypericum is one of the most important medicinal plants that contain 17 species in Iran, three of them are endemics. This paper reports the essential oil composition of eight Hypericum species from Iran. The essential oil analysis of a number of the studied plants has already been reported but their report from Iran may be valuable for scientists.  Samples collected from different pla...

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This study simulated the characteristics of fluid flow that passes through Darrieus turbine before installation and testing were carried out. The purpose knowing can determine profile position maximum speed so design placement be improved. research method was out using dynamic computational simulations in three-dimensional form with steady state conditions, discretization second-order, converge...