نتایج جستجو برای: axial fan
تعداد نتایج: 59350 فیلتر نتایج به سال:
In this paper, three dimensional flow characteristic was presented by a revision of an impeller of an axial turbo fan for improving the airflow rate and the static pressure. TO consider an incompressible steady three-dimensional flow, the RANS equations are used as the governing equations, and the standard k-ε turbulence model is chosen. The pitch angles of 44°, 54°, 59°, and 64° are implemente...
We address the measurement and correction of fan distortion in optical coherence tomography (OCT). This effect arises from the scanning system configuration and prevents one, in general, from obtaining quantitative topographic data from OCT. Computer simulations allowed us to quantify the effect and evaluate its dependence on the scanning mirror separation and design of the collimating lens, as...
Background and aims Thermal stress is one of the important issues of physical stress in workplaces. Bakery workers that are one of widely population that under occupation heat stress. In this study, heat stress indexes consist of HSI and WBGT in worker positions in total of 88 bakeries in Hamadan city was assessed. Methods In this study 88 bakery workplace was considered. Measuring of ...
The present work reports an experimental study of the leakage flow in a low-speed fan ring. Existing 2D Particle Image Velocimetry (PIV) measurements taken meridional plane front rotor gap have been further processed and analyzed by means Proper Orthogonal Decomposition (POD). Three values dimensionless pressure rise across investigated. Namely, attention has focused on intermediate case—the on...
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