A research survey on aerodynamic with/without vibration effect and investigations for turbine components of gas turbine engines is presented. Experimental and numerically predicted results are presented from investigations undertaken over the past 70 years. The aerodynamics between the turbine blades is very important as it determines the overall system performance. The importance of aerodynamics is being in the pressure distribution above and below each airfoil, the locations of the vortices occurring, their number, distribution, direction, and shedding, and the determination of the regions of fluid separation from the wall that is directly related to the fluid velocity. Many ranges of vibration that affect different bodies were taken, and some of these ranges were small (10-200 Hz), and others had large ranges from 1.5 to 10 KHz. therefore the result evolution and shedding of vortices corresponding to the deformation in fluid structure depends on the Reynolds number and value of amplitude and frequency for vibration. The Mach number is a clear indicator to represent these characteristics. It also includes studying the theoretical methods used and simulations of the researchers’ aerodynamics, the accuracy of the results reached, the representation of the body contour and the diagrams for each of the pressure and Mach number, the pressure (Cp
) and lift (CL
) coefficients, and their amount of change occurring at each location of the airfoil. The importance of the above topics has motivated us to prepare a comprehensive review mostly of the aerodynamics of turbine blades and the effect of the vibration on the flow. The main concepts of aerodynamics, such as Cp
and CL
as well as vibration frequency are presented. It also highlights the performance of the turbine blades as a result of vibration
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Monitoring of two phase flow or multiphase flow in the industrial and service networks of pipelines is a significant problem. In order to manage this pipelines networks efficiently, an accurate on-line sensors and non-intrusive require to monitor the phase flow in the pipelines. This research presents the studying of a non-intrusive electromagnetic wave sensor (EM sensor) operating at radio and microwave frequencies for on-line monitoring and measuring two phase flow fractions of (water/oil), expressed in volume percentage in pipeline. The resonator inside cavity, used the shift in resonant frequency to detect and measure the components of two phase flow in a pipeline networks. The result show the possibility to developed non-intrusive sensor, based on EM waves capabilities to monitor the volume frication percentage of mufti-phases flow, and numerical results using HFSS code show a good agree with experimental results.
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