All Outputs (7)

The Physics of H-Darrieus Turbine Starting Behavior (2015)
Journal Article
Worasinchai, S., Ingram, G. L., & Dominy, R. G. (2016). The Physics of H-Darrieus Turbine Starting Behavior. Journal of Engineering for Gas Turbines and Power, 138(6), https://doi.org/10.1115/1.4031870

This paper provides a resolution to the contradictory accounts of whether or not the Darrieus turbine can self-start. The paper builds on previous work proposing an analogy between the aerofoil in Darrieus motion and flapping-wing flow mechanisms. Th... Read More about The Physics of H-Darrieus Turbine Starting Behavior.

Applying Wind Simulations for Planning and Operation of Real-Time Thermal Ratings (2015)
Journal Article
Greenwood, D., Ingram, G., & Taylor, P. (2017). Applying Wind Simulations for Planning and Operation of Real-Time Thermal Ratings. IEEE Transactions on Smart Grid, 8(2), 537-547. https://doi.org/10.1109/tsg.2015.2488103

Real-time thermal ratings (RTTRs) are an emerging technology that allows the rating of electrical conductors to be estimated using real-time local weather observations. In many cases this leads to a very significant (typically 50%-100%) increase in r... Read More about Applying Wind Simulations for Planning and Operation of Real-Time Thermal Ratings.

The Impact of Diffuser Augmentation on a Tidal Stream Turbine (2015)
Journal Article
Cresswell, N., Dominy, R., & Ingram, G. (2015). The Impact of Diffuser Augmentation on a Tidal Stream Turbine. Ocean Engineering, 108, 155-163. https://doi.org/10.1016/j.oceaneng.2015.07.033

The results from an experimental study of a model diffuser augmented tidal stream turbine are presented with a particular focus on the impact of the diffuser upon the turbine׳s performance in yawed flows. This study is the first to examine yaw effect... Read More about The Impact of Diffuser Augmentation on a Tidal Stream Turbine.

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..

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.

Investigating Endwall-Blade Fillet Radius Variation to Reduce Secondary Flow Losses (2015)
Presentation / Conference Contribution
Hawes, C., Williams, R., & Ingram, G. (2015, March). Investigating Endwall-Blade Fillet Radius Variation to Reduce Secondary Flow Losses. Presented at 11th European Conference on Turbomachinery Fluid Dynamics and Thermodynamics., Madrid, Spain

In turbomachinery the joint between a turbine blade and the endwall often involves a fillet. Previous studies show that this fillet significantly influences the secondary flows despite regularly being omitted from simulation and testing, specifically... Read More about Investigating Endwall-Blade Fillet Radius Variation to Reduce Secondary Flow Losses.

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.