As a vital part of the pre-swirl air supply system, the rotating receiver hole will affect the
cooling air quality supplied to turbine rotor blades of an aero-engine. It is concerned about …

The sealing flow will inevitably affect the cooling airflow quality in a second air system of an
aero-engine. In this study, theoretical derivation and numerical simulation were conducted to …

Detailed understanding of hot gas path flow and heat transfer characteristics in gas turbine
systems is imperative in order to design cooling strategies to meet the stringent …

This paper addresses limitations of widely used Reynolds-averaged turbulence models
(RANS) for prediction of gas turbine internal air systems. Results from direct numerical …

Predicting the comprehensive energy consumption is challenging for the complicated
secondary air system. To solve this problem, a universal flow resistance element has been …

Pre-swirl system is installed to minimize energy loss between the stationary and rotating
parts of turbine secondary air system. Although various optimization studies were conducted …

The life assessment and the efficiency of turbine cooling blades and vanes are seriously
affected by the cooling air delivery system of a gas turbine. The pre-swirl system in a gas …

Since the main flow blades of gas turbines are in high temperature and high pressure
condition, their life span depends on the performance of the cooling system. A pre-swirl …

The effect of pre-swirl nozzle angle (θ) on the flow and heat transfer characteristics of a
radial pre-swirl system is numerically investigated using the CFD software ANSYS-CFX. In …

The present study investigates flow and heat transfer characteristics in a rotor-stator pre-
swirl system. Considered are rotational Reynolds numbers Re Ф ranging from 3.4× 10 5 to …