\"Fan axial flow, adapted the inflow, high efficiency\".The present invention relates to an axial flow fan which comprises a central hub efficiently, a plurality of blades, and a frame.And it is designed to operate in a shield of protection and induce flow through one or more heat ...
Because of the European and global regulation concerning acoustic emission, the goal of manufacturers is to substantially decrease the noise radiated by turbomachines, and in particular axial fans, without degrading their aerodynamic performances. High rotation speed and increasing power add to the overall...
Performance prediction is possible by applying momentum theory, giving integ... GAM Van Kuik,LEM Lignarolo - 《Wind Energy》 被引量: 26发表: 2016年 An Actuator Disc Analysis of Inlet Distortion and Rotating Stall in Axial Flow Turbomachines The flow behind a rotor (or stator) blade row due...
Applying our design method to the runner of an ultra-small axial flow hydraulic turbine, the performance and internal flow of the designed runner were investigated using CFD analysis and experiment (performance test and PIV measurement). As a result, the runners designed with our design method ...
Axial Flow Turbines. By J. H. H ORLOCK . Butterworth, 1966. 275 ... SP Hutton - 《Journal of Fluid Mechanics》 被引量: 0发表: 1967年 TRANSITION FROM A VERY LARGE TO A MODERATE BLADE SPACING - Introduction to the Theory of Flow Machines - 34 This chapter discusses the purposes and ...
Fan Laws Set of laws that predict performance changes if one or more parameters are changed from one fan or operating condition to another. These laws govern airflow, pressure capability and power required among many other parameters. Fan Ring Diameter Inside diameter of fan housing at the plane...
Small axial-flow fans used for computer cooling and many other appliances feature a rotor driven by a downstream motor held by several cylindrical struts. This study focuses on the aerodynamic mechanism of rotor-strut interaction for an isolated fan. The three-dimensional, unsteady flow field is ...
Axial fans are classically designed with the mean line theory based on the Euler turbo machinery equation. In order to design a machine, a span wise vortex distribution is chosen for a specific rotation speed. The result of this design process is a blade geometry with well-defined blade angles...
Attentions are paid on the pump's performance under low flow rates. Saddle-shaped performance curves are proved during the three pumps' operation with the variation of flow rate. With pre-defined non-dimensional parameters, distributions of axial velocity near the impeller and vane are described. ...
轴流风机设计要素对性能影响的数值分析-numerical analysis of the influence of design elements on performance of axial flow fan.docx,万方数据 万方数据 slightly at first and then decreases with the increase of hub ratio, fan efficiency gradually decreases by