Outputs (30)

The Significance of Bypass Transition on the Annual Energy Production of an Offshore Wind Turbine (2021)
Journal Article
Duffy, A., Ingram, G., & Hogg, S. (2022). The Significance of Bypass Transition on the Annual Energy Production of an Offshore Wind Turbine. Wind Energy, 25(4), 772-787. https://doi.org/10.1002/we.2697

Awareness of Leading-Edge Erosion (LEE) on wind turbine blades, and the impacts it can have on Annual Energy Production (AEP) have increased significantly over recent years. This is especially important in offshore environments, where a combination o... Read More about The Significance of Bypass Transition on the Annual Energy Production of an Offshore Wind Turbine.

Application of fluidic curtains to turbine rotor tip seal geometries. (2018)
Presentation / Conference Contribution
MacCalman, J., Hogg, S., & Ingram, G. (2018, June). Application of fluidic curtains to turbine rotor tip seal geometries. Presented at ASME Turbo Expo 2018, Lillestrøm, Norway

Fluidic curtain sealing has recently been shown to offer strong potential especially when a combination of fluidic curtain and a conventional labyrinth seal is used. A series of fundamental dimensionless ratios have been proposed and the design space... Read More about Application of fluidic curtains to turbine rotor tip seal geometries..

Experimental Validation of a Curtain Type Fluidic Jet Seal on a Turbine Rotor Shroud (2015)
Presentation / Conference Contribution
Hilfer, M., Hogg, S., & Ingram, G. (2015, June). Experimental Validation of a Curtain Type Fluidic Jet Seal on a Turbine Rotor Shroud. Presented at ASME Turbo Expo 2015: Turbine Technical Conference and Exposition American Society of Mechanical Engineers, Montreal, Canada

This paper describes the design and testing of a fluidic “air-curtain” type seal application to reduce tip leakages on a small high-speed single stage axial turbine. The initial experimental investigations were carried out to demonstrate the applicat... Read More about Experimental Validation of a Curtain Type Fluidic Jet Seal on a Turbine Rotor Shroud.

A Dynamic Clearance Seal for Steam Turbine Application. (2015)
Presentation / Conference Contribution
Messenger, A., Williams, R., Ingram, G., Hogg, S., Tibos, S., & Seaton, J. (2015, June). A Dynamic Clearance Seal for Steam Turbine Application. Presented at ASME Turbo Expo 2015: Turbine Technical Conference and Exposition American Society of Mechanical Engineers, Montreal

Effective sealing in turbomachinery reduces the leakage flow bypassing the turbine blades and also reduces the losses where the leakage flow mixes with the primary flow. In general the clearance should be as small as possible but is limited by therma... Read More about A Dynamic Clearance Seal for Steam Turbine Application..

Efficient Methods for Predicting Low Pressure Steam Turbine Exhaust Hood and Diffuser Flows at Design and Off-Design Conditions (2015)
Journal Article
Burton, Z., Ingram, G., & Hogg, S. (2015). Efficient Methods for Predicting Low Pressure Steam Turbine Exhaust Hood and Diffuser Flows at Design and Off-Design Conditions. Journal of Engineering for Gas Turbines and Power, 137(8), https://doi.org/10.1115/1.4029599

The exhaust hood of a steam turbine is an important area of turbomachinery research as its performance strongly influences the power output of the last stage blades (LSB). This paper compares results from 3D simulations using a novel application of t... Read More about Efficient Methods for Predicting Low Pressure Steam Turbine Exhaust Hood and Diffuser Flows at Design and Off-Design Conditions.

The influence of condenser pressure variation and tip leakage on low pressure steam turbine exhaust hood flows (2014)
Journal Article
Burton, Z., Ingram, G., & Hogg, S. (2014). The influence of condenser pressure variation and tip leakage on low pressure steam turbine exhaust hood flows. Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, 228(4), 370-379. https://doi.org/10.1177/0957650914524190

This paper aims to highlight the importance of the accurate computational modelling of both the inlet and outlet exhaust hood boundary conditions. The computations presented are calculated using the public domain low pressure exhaust diffuser test ca... Read More about The influence of condenser pressure variation and tip leakage on low pressure steam turbine exhaust hood flows.

The Influence of Inlet Asymmetry on Steam Turbine Exhaust Hood Flows (2013)
Journal Article
Burton, Z., Hogg, S., & Ingram, G. (2014). The Influence of Inlet Asymmetry on Steam Turbine Exhaust Hood Flows. Journal of Engineering for Gas Turbines and Power, 136(4), Article 042602. https://doi.org/10.1115/1.4026003

It has been widely recognized for some decades that it is essential to accurately represent the strong coupling between the last stage blades (LSB) and the diffuser inlet, in order to correctly capture the flow through the exhaust hoods of steam turb... Read More about The Influence of Inlet Asymmetry on Steam Turbine Exhaust Hood Flows.

Application of an Air-Curtain Fluidic Jet Type Seal to Reduce Turbine Shroud Leakage (2013)
Presentation / Conference Contribution
Auld, A., Hilfer, M., Hogg, S., Ingram, G., & Messenger, A. (2013, June). Application of an Air-Curtain Fluidic Jet Type Seal to Reduce Turbine Shroud Leakage. Presented at ASME Turbo Expo 2013., San Antonio, USA

This paper describes the design and optimization of an ‘air-curtain’ type seal using a fluidic jet to reduce tip leakage losses on a small high-speed single stage axial turbine device. The application will essentially demonstrate proof of concept for... Read More about Application of an Air-Curtain Fluidic Jet Type Seal to Reduce Turbine Shroud Leakage.

A Novel Method of Coupling the Steam Turbine Exhaust Hood and the Last Stage Blades Using the Non-Linear Harmonic Method (2013)
Presentation / Conference Contribution
Burton, Z., Ingram, G., & Hogg, S. (2013, June). A Novel Method of Coupling the Steam Turbine Exhaust Hood and the Last Stage Blades Using the Non-Linear Harmonic Method. Presented at ASME Turbo Expo 2013: Turbine Technical Conference and Exposition., San Antonio, USA

The exhaust hood of a steam turbine is a vital area of turbomachinery research its performance strongly influences the power output of the last stage blades. It is well known that accurate CFD simulations are only achieved when the last stage blades... Read More about A Novel Method of Coupling the Steam Turbine Exhaust Hood and the Last Stage Blades Using the Non-Linear Harmonic Method.

A Literature Review of Low Pressure Steam Turbine Exhaust Hood and Diffuser Studies (2013)
Journal Article
Burton, Z., Ingram, G., & Hogg, S. (2013). A Literature Review of Low Pressure Steam Turbine Exhaust Hood and Diffuser Studies. Journal of Engineering for Gas Turbines and Power, 135(6), Article 062001. https://doi.org/10.1115/1.4023611

This paper summarizes the findings from research studies carried out over the last 30 years, to better understand the flows in steam turbine low pressure exhaust hoods and diffusers. The work aims to highlight the areas where further study is still r... Read More about A Literature Review of Low Pressure Steam Turbine Exhaust Hood and Diffuser Studies.