An Effect of Tip Clearance on Aero Performance in Axial Flow Compressors for Aero Gas Turbine Engines
Journal Title: International Journal of Mechanical and Production Engineering Research and Development (IJMPERD ) - Year 2019, Vol 9, Issue 4
Abstract
Gas turbine engines have dominated aviation industry, because they are highly efficient and reliable. Axial flow compressor is a critical part which plays a crucial role in efficiently working of an aero gas turbine engine. The entry and exit of the working fluid is in axial direction with respect to rotational axis in axial flow compressor. Higher mass flow swallowing capacityand higher efficiency for a small frontal area are unique features of axial flow compressors making an ideal option for the gas turbines used in jet engines., One of the major source of performance deterioration/enhancement in compressors is because of tip clearancebetween the rotor blade tip and casing. The tip clearance causes leakage of flow. The leaked flow interacts with the core flow and the wall boundary layer and control aerothermodynamics behavior of flow in the tip regions. This tip leakage flow also has an impact on efficiency and operating envelope of the compressor. In this work, a steady state analysis has been carried out to understand the influence of tip clearance on the aerodynamic performance of transonic single stage wide chord blade axial flow compressor stage through three dimensional viscous analysis using ANSYS CFX. The analysis was carried out for different tip clearance configuration varying from 0% to 1.2% of rotor tip axial chord. The characteristics plots like corrected massflow rate versus pressure ratio andcorrected massflow rate versus efficiency were plotted for various tip clearances at design speed. The generated database of tip clearance in this work will predictbeforehand the extent of deterioration due to manufacturing deviation of the components on aerodynamic performance prior to engine testing in the test bed.
Authors and Affiliations
Manjunath S. Dalbanjan, Niranjan Sarangi
Keywords
Related Articles
- EP ID EP655897
- DOI 10.24247/ijmperdaug201977
- Views 102
- Downloads 0
Possibility of Producing Sintered Fine Porous Granulated Ceramic Filler Using Ash of Thermal Power Stations in Combination with Clay Rocks
In localities where rocks for production of coarse and fine fillers are unavailable, it becomes necessary to develop innovative artificial materials based on processing of local nonconventional natural and manmade feed s...
FRICTION STIR PROCESSED AA6061 WITH B4C – GRAPHITE HYBRID SURFACE COMPOSITE AND ITS MECHANICAL BEHAVIOUR
In this study, A6061-B4C-Graphite hybrid surface composites were fabricated with different volume percentages using micron sized particles via friction stir processing technique in order to increase the surface mechanica...
EXPERIMENTAL RESEARCH IN SMAW PARAMETER TO MINIMIZE THE RESIDUAL STRESS AND ANALYSIS FOR ELIMINATE COLD CRACKS
In a perfect earth all materials would match thro-ugh being without error, together in their mechanical and chemical structure. It would definitely make simpler welding, especially when choosing filler materials. So far...
RAIL ROAD WHEEL: DESIGN, PERFORMANCE AND MANUFACTURING ASPECTS
Railroad wheels do the toughest job. Design of wheel web and material used are the most important. Online performance specifies the material properties required. Wheel manufacturing process using upward pressure poured c...
Wear Analysis of Rice Husk Shell Powder Reinforced Epoxy Composite
Nowadays, with the awareness of the public along with strict legitimate forces over the use of polymers, the manufacturing and automotive industries started using the renewable materials. In this regard, rice husk powder...