نتایج جستجو برای: axial speed

تعداد نتایج: 251731  

The objective of this paper is the numerical study of the flow through an axial fan and examining the effects of blade design parameters on the performance of the fan. The axial fan is extensively used for cooling of the electronic devices and servers. Simulation of the three-dimensional incompressible turbulent flow was conducted by numerical solution of the (RANS) equations for a model. The S...

2011
Koichiro ADACHI Mitsuo NAKAJIMA Tohru KAWAMURA Kazuhiko HORIOKA

High-speed plasma flows have attracted much interest for conducting laboratory astrophysics experiments [1]. The formation of dense, high-speed plasma is essential for those applications and the investigation of related plasma phenomena. Devices such as a laser [2], z-pinch [3], or arc channel [4] are conventionally used to drive the highspeed flow. However, dense, high-speed flow is difficult ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه 1377

‏‎applications such as high definition viedeo reproduction, portable computers, wireless, and multimedia demand, and ever-increasing need for ligh-frequency high-resolution and low-power analog-to-digital converters. flash, two-step flash, and pipeline convertors are fast but consume large amount of power and require large area. to overcome these problems, successive approximation converter blo...

2016
Haotian Lin Duoru Lin Jingjing Chen Lixia Luo Zhuoling Lin Xiaohang Wu Erping Long Li Zhang Hui Chen Wan Chen Bo Zhang Jinchao Liu Xiaoyan Li Weirong Chen Yizhi Liu

Axial length (AL) is a significant indicator of eyeball development, but reports on the overall status of axial development in congenital cataract (CC) patients and its relationship with patient demographics, such as age, sex, and laterality, are rare. We prospectively investigated the AL of 1,586 patients ≤ 18 years old and undergoing cataract surgery in China from January 2005 to December 201...

Journal: :international journal of information, security and systems management 0

telemedicine has changed the way of health care. it is an indispensable tool in the hands of doctors to accelerate and facilitate the process of data interchange. wireless networks consist of small nodes with communications capabilities. development of wireless networks of telemedicine system is highly demanded since these networks promise a wide range of potential applications. in this paper t...

Journal: :Iet Electric Power Applications 2022

Combined magnetic bearing with radial and axial unites is an important supporting element for high speed energy density motor. Accurate calculation of the field a key to design optimise Radial Axial Magnetic Bearing (CRAMB). This study focuses on analytical method Unite CRAMB. The model based subdomain method. Laplace's equations in air-gap are solved by variable separation large diameter rotor...

Journal: :Aerospace 2023

The moving endwall has a great influence on the development and stability of axial compressor leakage flow. This paper presents novel experimental facility with high-speed for studying uniqueness design concept is that using large disk simulates endwall. When R/Cx = 16, theoretical analysis shows maximum linear velocity difference about 2.5% while mid-three passages less than 5%. Single-passage...

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