Computational fluid dynamics (CFD) is a powerful numerical tool that is becoming widely used to simulate many processes in the industry. In this work study of the stirred tank with 7 types of concave blade with CFD was presented. In the modeling of the impeller rotation, sliding mesh (SM) technique was used and RNG-k-ε model was selected for turbulence. Power consumption in various speeds in th...

AMA Mukhtar M. Curved surgical blade for excision on concave surfaces. Dermatology Review/Przegląd Dermatologiczny. 2023;110(1):76-77. doi:10.5114/dr.2023.127715. APA Mukhtar, (2023). Dermatologiczny, 110(1), 76-77. https://doi.org/10.5114/dr.2023.127715 Chicago Muhammed O. 2023. "Curved surfaces". Dermatologiczny 110 (1): Harvard pp.76-77. MLA surfaces." vol. 110, no. 1, 2023, pp. Vancouver

The Freeform Thick Layered Object Manufacturing (FF-TLOM) process is very suitable for the production of very large objects. The technology is based on flexible blade cutting of thick foam layers, which are stacked to create a physical model. Positioning the tool under accurate cutting constraints is a complex and difficult task, since the tool setting is controlled by 6 degrees of freedom. The...

An impulse turbine uses drag force on its blades to produce torque rotor. As fluid flows over the blades, pressure changes occur at nozzle, which increases fluid's velocity and reduces static nozzle outlet. The high-momentum then impinges rotor generating frictional resulting in production. To study impact of blade shape number turbine's performance, simulations were conducted. results indicate...

Recoating in a stereolithography apparatus (SLA) involves dipping the part being built into a vat containing liquid resin and sweeping a blade over the top of the part. There are two problems with the recoating operation in existing SLA systems. Firstly, the process is slow because the blade sweep speed is usually restricted to minimize disturbances to the resin surface and also because, after ...

Since the affirming of global warming, most wind energy projects have focused on large-scale Horizontal Axis Wind Turbines (HAWTs). In recent years, fast-growing sector and demand for smarter grids led to use Vertical (VAWTs) decentralized generation systems, both in urban remote rural areas. The goals this study are improve Savonius-type VAWT’s efficiency oscillation. main concept is redesign ...