نتایج جستجو برای: couette flow of class ii
تعداد نتایج: 21308167 فیلتر نتایج به سال:
We present a physical explanation of turbulent bursts in the flow between concentric, rotating cylinders (Couette-Taylor flow), based on fully resolved direct numerical calculations. The bursts are a temporal oscillation between a spatially laminar flow and turbulence, discovered experimentally by Hamill et al. The onset of turbulence is shown to be due to a linear instability of the spiral flo...
abstract the present study tried to investigate the effect of visual aids (films) on the development of the speech act of disagreement among iranian efl intermediate learners. to this end, the researcher selected 40 homogeneous intermediate learners based on their scores on oxford placement test. .the subjects then divided into control group and experimental group. both classes were tested by ...
Background & Aims: A successful treatment in the field of medical sciences depends on an accurate diagnosis. In orthodontic diagnosis and treatment planning also analyzing the sagittal jaw base relationship is important. Various methods have been suggested for this. This study aimed to investigate the accuracy of beta angle in sagittal jaw base relationship diagnosis. Materials & Methods: In t...
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