نتایج جستجو برای: non uniform pressure

تعداد نتایج: 1765579  

Journal: :International Journal of Heat and Fluid Flow 2022

We examine the effects of three basic but effective control strategies, namely uniform blowing, suction, and body-force damping, on intense Reynolds-stress events in turbulent boundary layer (TBL) developing suction side a NACA4412 airfoil. This flow is subjected to non-uniform adverse pressure gradient (APG), which substantially modifies its turbulence statistics with respect zero-pressure-gra...

A. Damaki Aliabad, M. Fazli Aghdaei, M. Mirsalim,

The air-gap of electrical machines may become non-uniform due to low accuracy of the manufacturing machinery, in assembling processes, or by aging. Detection and monitoring of this phenomenon is very important and of interest. There are several methods to model non-uniform air-gaps and to detect them by monitoring systems. One of the most widely used methods is by the analysis of the line curre...

Journal: :Integrative biology : quantitative biosciences from nano to macro 2014
Ozgur Ozsun Rebecca L Thompson Kamil L Ekinci Joe Tien

This study describes a non-invasive method for mapping interstitial fluid pressure within hydrogel-based microscale tissues. The method is based on embedding (or forming) a tissue within a silicone (PDMS) microfluidic device, and measuring the extremely slight displacement (<1 μm) of the PDMS optically when the device is pressurized under static and flow conditions. The displacement field under...

2017
Kuo-Tsai Wu Sheng-Jye Hwang Huei-Huang Lee

Although wafer-level camera lenses are a very promising technology, problems such as warpage with time and non-uniform thickness of products still exist. In this study, finite element simulation was performed to simulate the compression molding process for acquiring the pressure distribution on the product on completion of the process and predicting the deformation with respect to the pressure ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علم و صنعت ایران 1378

به منظور بررسی و تحلیل رفتار سیال لزج در پروانه پمپ سانتریفوژ، حل عددی معادلات ناویر استوکس در محدوده بین دو پره متوالی انجام گرفته و توزیع فشار، سرعت و تنشهای دیواره با استفاده از مدل توربولانسی rng k- و rsm محاسبه گردیده است . ابتدا شبیه سازی جریان بریا پمپ دوبعدی صورت گرفته است و سپس برای حالت سه بعدی نیز این کار انجام شده است . برای انجام این کار از نرم افزار فلوئنت استفاده شد که نسخه موجود...

Journal: :Journal of Zosen Kiokai 1954

Journal: :Information and Control 1985
José L. Balcázar Josep Díaz Joaquim Gabarró

Non-uniform complexity measures originated in automata and formal languages theory are characterized in terms of well-known uniform complexity classes. The initial index of languages is introduced by means of several computational models. It is shown to be closely related to context-free cost, boolean circuits, straight line programs, and Turing machines with sparse oracles and time or space bo...

Journal: :Deutsches Aerzteblatt Online 2010

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