نتایج جستجو برای: wind velocity

تعداد نتایج: 218963  

خراسانی‌زاده, حسین, سبزپوشانی, مجید, عبداللهی طاهری, رضا,

Considering problems associated with nonrenewable fuels such as pollution and high cost, efforts are being made to develop use of renewable energy sources like solar energy. Solar collectors could often be employed as important devices for thermal applications. Unglazed Transpired Collector (UTC) is a modern preheating and heating equipment used for ventilating air or drying crops. Heat transfe...

2014
Suman Chowdhury Mohammad Mahbubur Rahman Swapan Kumar Saha Utpal Kanti Das Chandan Kumar Sarkar

This paper tries to investigate the wind power potentiality in Bangladesh based on wind velocity data. For this purpose wind velocity data are taken for various locations in Bangladesh. From the data analysis, it is seen that the maximum wind potentiality is existing in Chittagong from the aspect of wind velocity.

Journal: :iranian journal of astronomy and astrophysics 2014
jamshid ghanbari arezoo tajmohammadi

in this work we solve the set of hydrodynamical equations for accretion disks in the spherical coordinates (r,θ,ϕ) to obtain the explicit structure along θ direction. we study a two-dimensional advective accretion disc in the presence of thermal conduction. we find self-similar solutions for an axisymmetric, rotating, steady, viscous-resistive disk. we show that the global structure of an advec...

Journal: :journal of computational applied mechanics 0
mohammad ali ardekani associate professor, iranian research organization for science and technology (irost), tehran, iran foad farhani assistant professor, iranian research organization for science and technology (irost), tehran, iran mohsen mazidi instructor, iranian research organization for science and technology (irost), tehran, iran

in a steam power plant, the temperature of the cooling water leaving the condenser for recyclingshould decrease. this is achieved in a cooling tower. the heller cooling tower does not require waterfor operation, thus, it is a suitable system for use in thermal power plants throughout iran. wind is anenvironmental factor that unfavorably affects the performance of a cooling tower. previous studi...

2013
Andrew G. Semenov

Physical model of self-sustained infrasonic air oscillations related to interaction of fresh gale with choppy sea surface is proposed. It is shown that air infrasonic oscillations are expected inside moving 3D cavities in sea surface generated by gale and detected far from its region. Interaction of wind with moving sea wave crests is shown to be of weaker impact on oscillations in far field. F...

Journal: :Nature 1881

Arezoo Tajmohammadi Jamshid Ghanbari,

In this work we solve the set of hydrodynamical equations for accretion disks in the spherical coordinates (r,θ,ϕ) to obtain the explicit structure along θ direction. We study a two-dimensional advective accretion disc in the presence of thermal conduction. We find self-similar solutions for an axisymmetric, rotating, steady, viscous-resistive disk. We show that the global structure of an advec...

2008
Wei Zhang Sang Joon Lee

Wind-blown sand is a typical example of twophase particle-laden flows. Owing to lack of simultaneous measured data of the wind and wind-blown sand, interactions between them have not yet been fully understood. In this study, natural sand of 100–125 lm taken from Taklimakan Desert was tested at the freestream wind speed of 8.3 m/s in an atmospheric boundary layer wind tunnel. The captured flow i...

Journal: :Journal of the Japan Society of Naval Architects and Ocean Engineers 2019

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