نتایج جستجو برای: Viscose fluid flow

تعداد نتایج: 659475  

Journal: :E3S web of conferences 2023

Viscose rayon is a natural fabric from regenerated cellulose derived wood pulp, bamboo, or cotton linters. The viscose industry relies on electricity to generate steam for textile production. This study aims optimize the 45-ton-per-hour Atmospheric Fluidized Bed Combustion (AFBC) boiler. Its efficiency 78.16%, lower than benchmark of 85.78%. Boiler decreases as flue gas temperature increases, r...

Journal: :journal of nanostructures 2015
a. ghorbanpour-arani m. sh. zarei

surface and small scale effects on free transverse vibration of a single-walled carbon nanotube (swcnt) fitted with y-junction at downstream end conveying viscose fluid is investigated in this article based on euler-bernoulli beam (ebb) model. nonlocal elasticity theory is employed to consider small scale effects due to its simplicity and efficiency. the energy method and hamilton’s principle a...

A. Ghorbanpour-Arani, M. sh. Zarei

Surface and small scale effects on free transverse vibration of a single-walled carbon nanotube (SWCNT) fitted with Y-junction at downstream end conveying viscose fluid is investigated in this article based on Euler-Bernoulli beam (EBB) model. Nonlocal elasticity theory is employed to consider small scale effects due to its simplicity and efficiency. The energy method and Hamilton’s principle a...

In this study, nonlocal nonlinear instability and the vibration of a double carbon nanotube (CNT) system have been investigated. The Visco-Pasternak model is used to simulate the elastic medium between nanotubes, on which the effect of the spring, shear and damping of the elastic medium is considered. Both of the CNTs convey a viscose fluid and a uniform longitudinal magnetic field is applied t...

Journal: :international journal of advanced design and manufacturing technology 0
mohammad mehdi ghaitani islamic azad university - khomeinishahr branch ali ghorbanpour arani university of kashan hasan khademizadeh islamic azad university-khomeinishahr branch, country iran

in this paper, nonlinear vibration and instability response of an embedded pipe conveying viscose fluid is investigated. the pipe is considered as a timoshenko beam embedded on an elastic foundation which is simulated by spring constant of the winkler-model and the shear constant of the pasternak-model. the external flow force, acting on the beam in the direction of the flexural displacement is...

Journal: :journal of computational applied mechanics 0
ali ghorbanpour arani professor, faculty of mechanical engineering, university of kashan, kashan, iran saeed amir assistant of professor, faculty of mechanical engineering, university of kashan, kashan, iran abbas karamali ravandia ms graduate, faculty of mechanical engineering, university of kashan, kashan, iran

in this study, nonlocal nonlinear instability and the vibration of a double carbon nanotube (cnt) system have been investigated. the visco-pasternak model is used to simulate the elastic medium between nanotubes, on which the effect of the spring, shear and damping of the elastic medium is considered. both of the cnts convey a viscose fluid and a uniform longitudinal magnetic field is applied t...

A Ghorbanpour Arani, M.Sh Zarei

In the present work, effect of von Karman geometric nonlinearity on the vibration characteristics of a Y-shaped single walled carbon nanotube (Y-SWCNT) conveying viscose fluid is investigated based on Euler Bernoulli beam (EBB) model. The Y-SWCNT is also subjected to a longitudinal magnetic field which produces Lorentz force in transverse direction. In order to consider the small scale effects,...

Journal: :Egyptian Journal of Chemistry 2021

Nonwoven fabric with cellulosic base has many Features ability to absorb biological fluids and can easily adapt for different types locations of wounds, which made it common unique in surgical dressing. The study aimed To design samples one layer two layers nonwoven fabrics the inner deep endoscopic wound dressings control fluid leakage. 100% cotton, viscose, viscose/polyester (70:30) % were us...

Journal: :Acta chimica Slovenica 2011
Alenka Pavko-Čuden Raša Urbas

Textiles can provide effective protection against UV radiation because they reflect, absorb and scatter solar wavelengths. Properly designed, they significantly increase the area of covered skin. The optimal combination of thickness, fabric density, mass per unit area, knitted structure, yarn type and yarn linear density, facilitate the production of textiles with high UV protection properties....

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده فنی 1393

انجام عملیات شکست هیدرولیکی سهم قابل توجهی در افزایش تولید نفت و گاز در دنیا داشته است. اگرچه بیش از 60 سال است که در صنعت نفت دنیا شکست هیدرولیکی با موفقیت اجرا می شود، اما در ایران گزارشی از اجرای موفق این عملیات ارایه نشده است. همین امر لزوم توجه هر چه بیشتر دانشمندان ایرانی به این مهم را آشکارتر می سازد. در مدل ایجاد شده توسط نرم افزار آباکوس، مدل سازی چاه به صورت استوانه ای درون بلوک سه ب...

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