Flow mechanisms in axial turbine rim sealing
This paper presents a review of research on turbine rim sealing with emphasis placed on the
underlying flow physics and modelling capability. Rim seal flows play a crucial role in …
underlying flow physics and modelling capability. Rim seal flows play a crucial role in …
Sealing in turbomachinery
RE Chupp, RC Hendricks, SB Lattime… - Journal of Propulsion …, 2006 - arc.aiaa.org
Clearance control is of paramount importance to turbomachinery designers and is required
to meet today's aggressive power output, efficiency, and operational life goals. Excessive …
to meet today's aggressive power output, efficiency, and operational life goals. Excessive …
Interaction of rim seal and annulus flows in an axial flow turbine
C Cao, JW Chew, PR Millington… - J. Eng. Gas …, 2004 - asmedigitalcollection.asme.org
A combined computational fluid dynamics (CFD) and experimental study of interaction of
main gas path and rim sealing flow is reported. The experiments were conducted on a two …
main gas path and rim sealing flow is reported. The experiments were conducted on a two …
Large-eddy simulation of unsteady turbine rim sealing flows
Unsteady flow phenomena unrelated to the main gas-path blading have been identified in a
number of turbine rim seal investigations. This unsteadiness has significant influence on the …
number of turbine rim seal investigations. This unsteadiness has significant influence on the …
Influence of sealing air mass flow on the velocity distribution in and inside the rim seal of the upstream cavity of a 1.5-stage turbine
DE Bohn, A Decker, H Ma… - … Expo: Power for …, 2003 - asmedigitalcollection.asme.org
The phenomenon of hot gas ingestion at the rim seal section of turbines has been
investigated for the front cavity and inside the sealing gap of an 1.5-stage turbine. This paper …
investigated for the front cavity and inside the sealing gap of an 1.5-stage turbine. This paper …
Effect of turbine rotor disc vibration on hot gas ingestion and rotor-stator cavity flow
X Jia, L He, H Zhang - Aerospace Science and Technology, 2020 - Elsevier
Gas ingestion numerical model and rotor-stator (RS) cavity model with rotor vibration are
proposed to investigate the effect of rotor disc vibration on the flow characteristics in the RS …
proposed to investigate the effect of rotor disc vibration on the flow characteristics in the RS …
Computational fluid dynamics for turbomachinery internal air systems
Considerable progress in development and application of computational fluid dynamics
(CFD) for aeroengine internal flow systems has been made in recent years. CFD is regularly …
(CFD) for aeroengine internal flow systems has been made in recent years. CFD is regularly …
Buoyancy-induced flow in a heated rotating cavity
JM Owen, J Powell - 2006 - asmedigitalcollection.asme.org
Experimental measurements were made in a rotating-cavity rig with an axial throughflow of
cooling air at the center of the cavity, simulating the conditions that occur between corotating …
cooling air at the center of the cavity, simulating the conditions that occur between corotating …
Secondary air system component modeling for engine performance simulations
A Alexiou, K Mathioudakis - 2009 - asmedigitalcollection.asme.org
This paper describes the modeling of typical secondary air system elements such as rotating
orifices, seals, and flow passages with heat and work transfer from the surrounding surfaces …
orifices, seals, and flow passages with heat and work transfer from the surrounding surfaces …
Rayleigh-Bénard convection in open and closed rotating cavities
MP King, M Wilson, JM Owen - 2007 - asmedigitalcollection.asme.org
Buoyancy effects can be significant in the rotating annular cavities found between
compressor discs in gas-turbine engines, where Rayleigh numbers above 10 12 are …
compressor discs in gas-turbine engines, where Rayleigh numbers above 10 12 are …