نتایج جستجو برای: shape of blade

تعداد نتایج: 21177351  

بخشی خانیکی, غلامرضا, حمزۀ, بهنام, عصری, یونس, نوبخت, مریم,

The genus Crataegus L. has a wide distribution in Iran. Induviduals of Crataegus meyeri Pojark. show morphological variations in different regions. In this research, the effects of climatic variations on morphological traits of C. meyeri were studied. Seventy five specimens collected from nine provinces of Iran were measured in two sets of quantitative and qualitative traits. Statistical analys...

Journal: :Canadian Journal of Anaesthesia 1994

Alireza Javaheri Farshad Torabi, Omid Dehghan Razieh Hamedi

The shape of wake behind a wind turbine is normally assumed to have a hat shape for the models used in wind farm layout optimization purposes; however, it is know from experimental tests and numerical simulations that this is not a real assumption. In reality, the results of actual measurements and detailed numerical simulation show that the velocity in wake region has a S-shape profile. The pr...

The shape of wake behind a wind turbine is normally assumed to have a hat shape for the models used in wind farm layout optimization purposes; however, it is know from experimental tests and numerical simulations that this is not a real assumption. In reality, the results of actual measurements and detailed numerical simulation show that the velocity in wake region has a S-shape profile. Th...

Journal: :energy equipment and systems 2015
razieh hamedi alireza javaheri omid dehghan farshad torabi

the shape of wake behind a wind turbine is normally assumed to have a hat shape for the models used in wind farm layout optimization purposes; however, it is know from experimental tests and numerical simulations that this is not a real assumption. in reality, the results of actual measurements and detailed numerical simulation show that the velocity in wake region has a s-shape profile. the pr...

Journal: :international journal of advanced design and manufacturing technology 0
davood taherifar sayed mohsen mohsenishakib mehdi shahabi

in this paper, an optimization method for both weight and displacement of composite blades is presented. in   order to hold issues such as aerodynamics and acoustic unchanged, airfoil shape during optimization process remained constant. to achieve the ultimate goal, only blade lamination was changed. in order to achieve minimum weight for each part of the structure, the lowest layers are foreca...

2011
Chao Bai Liqiu Wang

Blade configuration of nanofluids has been proven to perform much better than dispersed configuration for some heat conduction systems. The analytical analysis and numerical calculation are made for the cylinder--shaped and regular-rectangular-prism--shaped building blocks of the blade-configured heat conduction systems (using nanofluids as the heat conduction media) to find the optimal cross-s...

2017
A. Armin R. Fotouhi W. Szyszkowski

In this paper a 3-D finite element (FE) investigation of soil-blade interaction is described. The effects of blade’s shape and rake angle are examined both numerically and experimentally. The soil is considered as an elastic-plastic granular material with non-associated Drucker-Prager material model. Contact elements with different properties are used to mimic soil-blade sliding and soil-soil c...

Journal: :Nanoscale Research Letters 2011

2015

Accuracy is the key issue in the precision forging. Geometric and dimension errors are the two significant defects found in most of near net or net shape manufacturing process. It becomes more critical for complex part such as an AUV propeller blade. In this study, geometric error was quantified by comparing the blade profile obtained from nominal geometry of the blade and the profile construct...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید