Results 21 to 30 of about 2,651 (265)
Experimental investigation on ducted counter-rotating axial flow fans [PDF]
, 2011 An experimental study on counter-rotating axial-flow fans was carried out. The fans of diameter D = 375 mm were designed using an inverse method. The counter-rotating fans operate in a ducted-flow configuration and the overall performances are measured ...
BAKIR, Farid +3 more
core +3 more sources
Numerical analysis of noise characteristics of a contra-rotating axial fan
IOP Conference Series: Earth and Environmental Science, 2012 Numerical analysis of the flow-field in a contra-rotating fan has been performed by using the CFD method. The LES technique is applied to simulate the 3D unsteady whole flow-field of the fan. Several monitoring faces are specified in the flow-field between the two impellers.
F Fang, Q G Chen
openaire +1 more source
Flow distortion measurements in convoluted aero engine intakes [PDF]
, 2015 The unsteady flowfields generated by convoluted aero engine intakes are major sources of instabilities that can compromise the performance of the downstream turbomachinery components.
Chiereghin, Nicola +2 more
core +2 more sources
Intake ground vortex characteristics [PDF]
, 2011 The development of ground vortices when an intake operates in close proximity to the ground has been studied computationally for several configurations including front and rear quarter approaching flows as well as tailwind arrangements.
MacManus, David G. +2 more
core +1 more source
Propulsion and Power Research, 2014 This paper focuses on the response of a high aspect ratio, low speed contra-rotating fan with complex inflow distortion. The total pressure at the inlet is artificially distorted by means of two different sets of screens with different porosities to ...
Chetan Mistry, A.M. Pradeep
doaj +1 more source
Trailing edge noise theory for rotating blades in uniform flow [PDF]
, 2013 This paper presents a new formulation for trailing edge noise radiation from rotating blades based on an analytical solution of the convective wave equation. It accounts for distributed loading and the effect of mean flow and spanwise wavenumber.
Agarwal, Anurag +2 more
core +1 more source
How to improve open rotor aerodynamics at cruise and take-off [PDF]
, 2014 A key challenge in open rotor design is getting the optimum aerodynamics at both the cruise and take-off conditions. This is particularly difficult because the operation and the requirements of an open rotor are very different at cruise compared to ...
, +4 more
core +1 more source
FEBS Open Bio, EarlyView.CRISPRI‐mediated gene silencing and phenotypic exploration in nontuberculous mycobacteria. In this Research Protocol, we describe approaches to control, monitor, and quantitatively assess CRISPRI‐mediated gene silencing in M. smegmatis and M. abscessus model organisms.
Vanessa Point +7 more
wiley +1 more source
Experimental comparison between a counter-rotating axial-flow fan and a conventional rotor-stator stage [PDF]
, 2013 Based on the requirement of energy consumption level and weight and dimension restriction, compact axial machines are highly demanded in many industrial fields.
BAKIR, Farid +2 more
core +3 more sources
Advanced Engineering Materials, EarlyView.Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt +8 more
wiley +1 more source