Results 21 to 30 of about 93,869 (311)

Influence of geometric characteristics of the flow pass of axial fan on the pressure difference created by it [PDF]

open access: yes, 2000
В статье представлены численное и экспериментальное исследования влияния формы проточной части осевого вентилятора на создаваемый перепад давлений. Исследованы конические, цилиндрические, цилиндро-конические, сфероконические и другие типы форм проточной ...
Голощапов, Владимир Николаевич   +1 more
core   +2 more sources

Passive Blowing Strategy to Enhance Aerodynamic Performance and Noise of a Hollow-bladed Axial Fan: An Experimental Study [PDF]

open access: yesJournal of Applied Fluid Mechanics
This research explores the efficacy of a passive control strategy designed to enhance the performance of an axial hollow fan. This investigation uses a dedicated experimental setup to evaluate various aspects of the fan's performance, including ...
A. Bouanik   +5 more
doaj   +1 more source

Development of a Performance-Based Design Technique for an Axial-Flow Fan Unit Using Airfoil Cascades Based on the Blade Strip Theory

open access: yesApplied Sciences
Axial-flow fans are widely used as cooling fans in the outdoor units of split-type air conditioners. The design of an axial-flow fan blade involves stacking several airfoils that can be differently designed for each spanwise section. However, the complex
Seo-Yoon Ryu   +3 more
doaj   +1 more source

Axial Fan Blade Vibration Assessment under Inlet Cross-Flow Conditions Using Laser Scanning Vibrometry

open access: yesApplied Sciences, 2017
In thermal power plants equipped with air-cooled condensers (ACCs), axial cooling fans operate under the influence of ambient flow fields. Under inlet cross-flow conditions, the resultant asymmetric flow field is known to introduce additional harmonic ...
Till Heinemann, Stefan Becker
doaj   +1 more source

Effect of axial spacing on rotating stall performance of FBCDZ-10-No20 contra-rotating fan

open access: yesMeitan kexue jishu, 2023
Mining contra-rotating fan are prone to rotational stall when it operates at low flow rates, which seriously affects the operational stability. The unsteady flow in the full flow passage of a FBCDZ-10-No20 contra-rotating fan at five axial spacings was ...
Qingguang CHEN   +3 more
doaj   +1 more source

Design and Experimental Validation of a Ducted Counter-rotating Axial-flow Fans System [PDF]

open access: yes, 2012
An experimental study on the design of counter-rotating axial-flow fans was carried out. The fans were designed using an inverse method. In particular, the system is designed to have a pure axial discharge flow.
Bakir   +21 more
core   +8 more sources

Influence of axial spacing on stall development of FBCDZ-10-No20 mode contra-rotating fan

open access: yesMeitan kexue jishu, 2023
The rotating fan is prone to instability such as stall and even surge when operating at low flow rates. In order to study the influence of axial spacings on the stall inception and its development and propagation process of a contra-rotating fan , a ...
Qingguang CHEN   +3 more
doaj   +1 more source

Flow Visualization around Axial Flow Fan Blades

open access: yesBulletin of JSME, 1986
In this paper, we established a method of flow visualization around the wing of an axial fiow fan by use of a drum camera, which could measure the velocity distribution around the wing by overlapping the measurement results of the time-line and the stream-line obtained from the spark trace and the smoke wire respectively.
Kryoshi KAWAGUCHI, Kazuma MATSUl
openaire   +2 more sources

Numerical investigation of differential speed operation of two impellers of contra-rotating axial-flow fan

open access: yesAdvances in Mechanical Engineering, 2017
A contra-rotating axial-flow fan is prone to stalling and motor overload at partial flow rates. Moreover, its efficiency decreases sharply at a high flow rate, which is accompanied by disparity between the shaft powers of the two impellers and the light ...
Xiaobo Sun   +3 more
doaj   +1 more source

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