Now showing items 1-5 of 5
Analysis of film cooling performance of tripod hole
(Virginia Tech, 2016-09-09)
The thermal efficiency of a gas turbine directly depends on the rotor inlet temperature. The ever increasing demand for more power and advances in the field of engineering enabled this temperature to be pushed higher. But ...
Computational Fluid Dynamic and Rotordynamic Study on the Labyrinth Seal
(Virginia Tech, 2012-06-14)
The labyrinth seal is widely used in turbo machines to reduce leakage flow. The stability of the rotor is influenced by the labyrinth seal because of the driving forces generated in the seal. The working fluid usually has ...
Effects of Two-Phase Flow in a Multistage Centrifugal Compressor
(Virginia Tech, 2016-10-19)
The performance of a vapor compression system is known to be affected by the ingestion of liquid droplets in the compressor. In these multiphase flows, the liquid and the vapor phase are tightly coupled. Therefore the ...
Fan-Shaped Hole Film Cooling on Turbine Blade and Vane in a Transonic Cascade with High Freestream Turbulence: Experimental and CFD Studies
(Virginia Tech, 2012-06-28)
The contribution of present research work is to experimentally investigate the effects of blowing ratio and mainstream Mach number/Reynolds number (from 0.6/8.5X10⁵ to 1.0/1.4X10⁶) on the performance of the fan-shaped hole ...
Computational Investigations of Boundary Condition Effects on Simulations of Thermoacoustic Instabilities
(Virginia Tech, 2016-02-17)
This dissertation presents a formulation of the Continuous Sensitivity Equation Method (CSEM) applied to the Computational Fluid Dynamics (CFD) simulation of thermoacoustic instability problems. The proposed sensitivity ...