Steam Turbine Blade Design Options: How To Specify Or Upgrade

Steam Turbine Blade Design Options:

How To Specify Or Upgrade

 

گزینه های طراحی پره توربین بخار

این مقاله قصد دارد تا کسانی را که در زمینه تجهیزات دوار فعالیت می کنند را با گزینه های موجود در طراحی پره توربین های بخار آشنا کند. مکانیزم های دلایل خستگی و تغییر شکل پره های بررسی می شود. با تاکید بر این عوامل موارد مختلف در طراحی هندسی، ساخت و نحوه بستن پره ها بحث شده و روش های کیفی تعیین توزیع تنش و تمرکز تنش در مقطع ریشه پره ارایه می شوند.

Download link:

Steam Trubine Blade Design Options: How To Specify Or Upgrade
حجم: 642 کیلوبایت

CFD Analysis of Flow through Compressor Cascade

CFD Analysis of Flow through Compressor Cascade

Abstract— This work aims at analyzing the flow behavior through a compressor cascade with the help of Computational Fluid Dynamics using the FLUENT software. An attempt has been made to study the effect of angle of attack or flow incidence angle on various flow parameters viz. static pressure, dynamic pressure, turbulence and their distribution in the flow field and predict the optimum range of angle of attack based on the above observations. Particularly, two principle parameters viz. the static pressure rise for the compressor cascade and the turbulence kinetic energy are considered in this analysis. It is observed that maintaining a slightly positive angle of flow incidence of +2 to +6 degrees is advantageous.

Download Link:

CFD Analysis of Flow through Compressor Cascade
حجم: 1.36 مگابایت

Design and CFD Analysis of Centrifugal Pump

Design and CFD Analysis of Centrifugal Pump

Abstract— the purpose of this paper is to identify /observe and determine the pattern of velocity profile and pressure distribution by using CFD simulation program after the 3D design and modeling of the pump is made using Vista CPD. Basically, this paper revolves around the idea of investigating the effect and distribution of velocity profile and pressure within a pump having the following specification, Head = 20 m, Flow rate = 280 m3/hr, and RPM = 1450. 3D Navier–Stokes equations were solved using ANSYS CFX.

The standard k -e turbulence model was chosen for turbulence model. From the simulation results it was observed that the pressure increases gradually from impeller inlet to outlet. The static pressure on pressure side is evidently larger than that on suction side at the same impeller radius. In addition to this, it was observed that, the velocity increases from impeller inlet until it enters the volute casing. It then drops to a minimum value at outlet region.

 

Keywords— Centrifugal pump design, CFD Analysis, Simulation, ANSYS CFX, Vista CPD, pressure distribution, CFD-Tool.

Download Link:

Design and CFD Analysis of Centrifugal Pump
Size:786 KB