We, herein, report an experimental study to investigate the role of local flamefront dynamics on propagation and acceleration cellularly unstable premixed expanding laminar flames. Using simultaneous Mie-scattering imaging Particle Image Velocimetry, we measured flame edge location its adjacent flow field, which were subsequently processed quantify evolution probability density functions (pdfs)...

As the use of Darrieus turbines in water is becoming increasingly popular field renewable energy, it essential to explore and evaluate existing research efforts. The situation turbine still requires further discussion. This paper aims provide a comprehensive review optimization methods for turbines, addressing challenges associated with their efficiency, start-up, stability. work summarizes eva...

Abstract Darrieus turbine has a vertical-axis configuration that is suitable for current from any direction. Placing circular flow disturbance in front of the can influence performance. This study wants to investigate positioning find best configuration. The method used numerical simulation with Computational Fluid Dynamics (CFD) software. There are three variations cylinder position angle 0°, ...

Wind generation is an alternative to energy that renewable, widely distributed, and environmentally friendly. However, the use of wind in certain areas with limited land has constraints for installing large-scale generators; therefore, concept micro attractive solution be developed at this time. In case, Vertical Axis Turbine (VAWT) preferred because it reliable economically feasible operate lo...

In this paper, dual-rotor counter-rotating (CR) configurations of vertical axis wind turbines (VAWTs) are briefly inspected and divided into three types. This investigation was focused on one these types—the CR-VAWT with co-axial rotors, in which two equal rotors placed the same shaft, displaced from each other along it rotated opposite directions. For three-blade H-Darrieus properties design t...