Performance study on a modified hybrid wind turbine with twisted Savonius blades
Sign Up to like & getrecommendations! Published in 2021 at "Energy Conversion and Management"
DOI: 10.1016/j.enconman.2021.114317
Abstract: Abstract The present paper introduces a numerical investigation of a proposed hybrid vertical axis wind rotor performance. This proposed hybrid wind rotor has twisted Savonius blades with a modified blade profile combined with 2/3 Darrieus… read more here.
Keywords: performance; wind; attachment angle; radius ratio ... See more keywords
Effects of radius ratio on turbulent concentric annular pipe flow and structures
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Heat and Fluid Flow"
DOI: 10.1016/j.ijheatfluidflow.2020.108725
Abstract: Abstract The effects of radius ratio on fully-developed turbulent concentric annular pipe flow and structures are investigated using direct numerical simulations (DNS). In order to study the radius ratio effects on the flow, four radius… read more here.
Keywords: radius ratio; annular pipe; flow structures; concentric annular ... See more keywords
Experimental investigation of turbulent counter-rotating Taylor–Couette flows for radius ratio η = 0.1
Sign Up to like & getrecommendations! Published in 2023 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2023.392
Abstract: Abstract Turbulent Taylor–Couette flow between two concentric independently rotating cylinders with a radius ratio of $\eta = 0.1$ is studied experimentally. While the scope is to study the counter-rotating cases between both cylinders, the radial… read more here.
Keywords: counter rotating; rotation; taylor couette; radius ratio ... See more keywords
Complexity-free Vaidya-Tikekar model describing self-bound compact objects by gravitational decoupling
Sign Up to like & getrecommendations! Published in 2023 at "Physica Scripta"
DOI: 10.1088/1402-4896/acd442
Abstract: In this article, using gravitational decoupling under vanishing complexity condition, an anisotropic solution to spherically symmetric compact stars has been investigated. After obtaining the solution, a detailed physical analysis including thermodynamic parameters, mass-radius ratio, and… read more here.
Keywords: gravitational decoupling; complexity free; radius ratio; model ... See more keywords
New bound of the mass-to-radius ratio for electrically charged stars
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review D"
DOI: 10.1103/physrevd.98.124022
Abstract: Using a general solution-generating technique for electrically charged relativistic stars with spherical symmetry, we derive a new bound on the mass-radius ratio. This compactness bound is based on the already established bounds for uncharged interior… read more here.
Keywords: radius ratio; mass radius; new bound; bound mass ... See more keywords