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Now showing items 11-20 of 27
A torque matched aerodynamic performance analysis method for the horizontal axis wind turbines
(Wiley, 2013-11)
An analysis method is developed to test the operational performance of a horizontal axis wind turbines. The rotor is constrained to the torque–speed characteristic of the coupled generator. Therefore, the operational ...
From passive to active pitch regulation of wind turbines: Optimization method with numerical validation
(ASME, 2015)
An optimization method that changes the control strategy of the Horizontal Axis Wind Turbine (HAWT) from passive- to active-pitch has been developed. The method aims to keep the rated power constant by adjusting the blade ...
Turbulence impact on wind turbines: experimental investigations on a wind turbine model
(IOP Publishing, 2016)
Experimental investigations have been conducted by exposing an efficient wind turbine model to different turbulence levels in a wind tunnel. Nearly isotropic turbulence is generated by using two static squared grids: fine ...
A new model for predicting the required pressure difference for pressure swirl atomizers
(Europe, Institute for Liquid Atomization and Spray Systems, ILASS, 2020)
Prior to this study an investigation is made to analyze the accuracies of the semi-empirical correlations of the previous studies by comparing them with a large number of experimental data which is extracted from the works ...
Fluid flow characteristics inside convergent, divergent and straight open-end pressure swirl atomizer
(Europe, Institute for Liquid Atomization and Spray Systems, ILASS, 2020)
Effects of geometrical parameters on the performance of small-scale open-end pressure swirl atomizers (PSA) have been studied using computational fluid dynamics. The shape of the swirl chamber is the main geometrical feature ...
A coupled material removal model for chemical mechanical polishing processes
(IOP Publishing, 2021-10-01)
Chemical mechanical polishing (CMP) is a process used to obtain planarized surfaces in microelectronic device manufacturing. The planarization is achieved by material removal from the wafer surface by synergistic effect ...
Effect of the motion pattern on the turbulence generated by an active grid
(Springer, 2021)
In the field of turbulence research, many experiments are performed using turbulence generated under reproducible conditions. In the past mostly static grids having a fixed blockage were adopted, but in order to generate ...
Benchmark study of 2D and 3D VOF simulations of a simplex nozzle using a hybrid RANS-LES approach
(Elsevier, 2022-07-01)
In this study, a simplex nozzle is tested with water for the benchmarking of different flow simulation models. A large scale Plexi-glass transparent nozzle is used to reduce the influence of production tolerances on the ...
Model-based optimization of CMP process parameters for uniform material removal selectivity in cu/barrier planarization
(IOP Publishing, 2022-02-01)
Chemical mechanical planarization is a process of achieving planar surfaces in the semiconductor manufacturing industry. The planarization of a surface is achieved by material removal from the wafer surface. The material ...
3D simulation of droplet impact on static and moving walls
(Begell House Inc., 2022)
In the present study, the contact angle model and the origin of the parasitic current, precisely, the relation of the parasitic current with grid distribution, have been studied to accurately predict droplet impact on ...
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