A novel parametric control method for the compressor blade, full-blade surface method, is proposed in this paper. Compared with traditional has good smoothness and construction convenience while maintaining low-dimensional characteristics, compared semi-blade a larger degree of geometric deformation freedom can account changes both suction pressure surface. only four more parameters each so it ...

In axial compressors, the unsteady flow caused by interaction between dynamic and static cascades will make moving vanes subject to periodic forces increase risk of high-cycle fatigue fractures. this study, an “S”-type bowed guide vane was designed a 1.5-stage compressor model established. For five with different bending coefficients, numerical simulation carried out under design conditions nea...

This paper aimed to solve the impact of operational abrasive wear on rotor blades axial compressor turboshaft engine decrease in its total compression efficiency ηCt and transition into unstable work mode (surge). process is analyzed based obtained data by operating TV3-117 helicopter engines high dust atmosphere conditions. Abrasive compressors causes mechanical damage blades, reducing their s...

Selection of each major type of Reciprocating, Rotary, Centrifugal and axial Compressor is briefly reviewed. It ls explained how the nondimensional scales of Specific Speed and Speclfic Diameter can be used to select any of the above configuration of Compression machinery at its optimum efficiency range. The paper presents the approach of Engineers Constructors in selecting compressors in petro...

Improving the efficiency of compressors has been one of the most important goals of researchers over the years. In this paper, three different methods are presented for parameterization and blade optimization of axial flow compressor. All methods consist of flow analysis tool, optimization algorithms, and parametric geometry generation tool, that are different in each approach. Objective functi...

Characteristics of rotor blade tip clearance flow in axial compressors can significantly affect their performance and stable operation. It may also increase blade vibrations and cause detrimental noises. Therefore, this paper is contributed to investigate tip leakage flow in a low speed isolated axial compressor rotor blades row. Simulations are carried out on near-stall condition, which is val...

Axial flow compressors are subjected to demands for ever-increasing levels of pressure ratio at a compression efficiency that augments the overall cycle efficiency. However, unstable flow may develop in the compressor, which can lead to a stall or surge and subsequently to gas turbine failure resulting in significant downtime and cost to repair. To protect against these potential aerodynamic in...

The aim of this paper is to present a methodology for optimizing the operation of compressors in parallel in process industries. Compressors in parallel can be found in many applications for example in compressor stations conveying gas through long pipelines and in chemical plants in which compressors supply raw or processed materials to downstream processes. The current work presents an optimi...