Gerard Hamill

Professor

  • Room 02.016B - David Keir Building David Keir

    United Kingdom

Accepting PhD Students

19962020
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Research Output 1996 2020

2019

Prediction of Seabed Scour Induced by Full-Scale Darrieus-Type Tidal Current Turbine

Sun, C., Lam, W-H., Dai, M. & Hamill, G., 30 Sep 2019, In : Journal of Marine Science and Engineering. 7, 10, 26 p., 342.

Research output: Contribution to journalArticle

Open Access
File
Scour
scour
tidal current
turbine
Turbines

Scour Concerns for Short-Span Masonry Arch Bridges

Solan, B., Ettema, R., Ryan, D. & Hamill, G. A., 19 Nov 2019, In : Journal of Hydraulic Engineering. 146, 2, 7 p., 06019019.

Research output: Contribution to journalArticle

Masonry bridges
Arch bridges
Scour
masonry
scour
3 Citations (Scopus)

Scour Induced by Single and Twin Propeller Jet

Cui, Y., Lam, W-H., Zhang, T., Sun, C. & Hamill, G., 25 May 2019, In : Water. 11, 5, 20 p., 1097.

Research output: Contribution to journalArticle

Open Access
File
air transportation
Scour
Normal Distribution
Propellers
scour

Semi-empirical wake structure model of tidal turbine using joint axial momentum theory and DES-SA method

Wang, S., Lam, W-H., Cui, Y., Zhang, T., Jang, J., Sun, C., Guo, J., Ma, Y. & Hamill, G., 01 Nov 2019, In : Ocean Engineering. 191, 19 p.

Research output: Contribution to journalArticle

Model structures
Momentum
Turbines
Velocity distribution
Turbulence models
4 Citations (Scopus)

Ship twin-propeller jet model used to predict the initial velocity and velocity distribution within diffusing jet

Jang, J., Lam, W-H., Cui, Y., Zhang, T., Sun, C., Guo, J., Ma, Y., Wang, S. & Hamill, G., 02 Mar 2019, In : KSCE Journal of Civil Engineering. 23, 3, 14 p.

Research output: Contribution to journalArticle

Ship propellers
Velocity distribution
Propellers
Normal distribution
Momentum
1 Citation (Scopus)

Temporal Evolution of Seabed Scour Induced by Darrieus-Type Tidal Current Turbine

Chong, S. M., Lam, W-H., Lam, S. S., Dai, L-M. & Hamill, G., 28 Apr 2019, In : Water. 11, p. 1 22 p., water-481715.

Research output: Contribution to journalArticle

Open Access
File
turbines
Scour
scour
tidal current
temporal evolution

Temporal Model for Ship Twin-Propeller Jet Induced Sandbed Scour

Cui, Y., Lam, W-H., Zhang, T., Sun, C., Robinson, D. & Hamill, G., 27 Sep 2019, In : Journal of Marine Science and Engineering. 18 p., jmse-568913.

Research output: Contribution to journalArticle

Open Access
File
Ship propellers
Scour
Propellers
scour
experimental apparatus

Tip-Bed Velocity and Scour Depth of Horizontal-Axis Tidal Turbine with Consideration of Tip Clearance

Zhang, T., Lam, W-H., Cui, Y., Jang, J., Sun, C., Guo, J., Ma, Y., Wang, S., Lam, S. S. & Hamill, G., 25 Jun 2019, In : Energies. 12, 2450, p. 1-23

Research output: Contribution to journalArticle

Open Access
File
Scour
Turbine
Clearance
Turbines
Horizontal
2018
2 Citations (Scopus)

An Advanced Calibration Method for Image Analysis in Laboratory-Scale Seawater Intrusion Problems

Robinson, G., Moutari, S., Ahmed, A. A. & Hamill, G. A., 11 Apr 2018, In : Water Resources Management. 16 p.

Research output: Contribution to journalArticle

Open Access
File
Salt water intrusion
Calibration
seawater
calibration
Aquifers
9 Citations (Scopus)

Empirical model for Darrieus-type tidal current turbine induced seabed scour

Sun, C., Lam, W. H., Cui, Y., Zhang, T., Jang, J., Guo, J., Ma, Y., Wang, S., Tan, T. H., Chuah, J. H., Lam, S. S. & Hamill, G., 14 Jun 2018, In : Energy Conversion and Management. 171, p. 478-490 13 p.

Research output: Contribution to journalArticle

Open Access
File
Scour
Turbines
Rotors
Piles
4 Citations (Scopus)

Novel energy coefficient used to predict efflux velocity of tidal current turbines

Wang, S., Lam, W-H., Cui, Y., Zhang, T., Jang, J., Sun, C., Guo, J., Ma, Y. & Hamill, G., 01 Sep 2018, In : Energy. 158, p. 730-745 16 p.

Research output: Contribution to journalArticle

Open Access
File
Turbines
Computational fluid dynamics
Momentum
15 Citations (Scopus)

Theoretical vertical-axis tidal-current-turbine wake model using axial momentum theory with CFD corrections

Ma, Y., Lam, W-H., Cui, Y., Zhang, T., Jang, J., Sun, C., Guo, J., Wang, S., Lam, S. S. & Hamill, G., Oct 2018, In : Applied Ocean Research. 79, p. 113-122 10 p.

Research output: Contribution to journalArticle

Open Access
File
Momentum
Computational fluid dynamics
Turbines
Velocity distribution
Farms
2 Citations (Scopus)

Transient Investigation of the Critical Abstraction Rates in Coastal Aquifers: Numerical and Experimental Study

Abdelgawad, A. M., Abdoulhalik, A., Ahmed, A. A., Moutari, S. & Hamill, G., 28 Jun 2018, In : Water Resources Management.

Research output: Contribution to journalArticle

Open Access
File
coastal aquifer
Aquifers
pumping
experimental study
Hydraulic conductivity
2017
15 Citations (Scopus)

A new physical barrier system for seawater intrusion control

Abdoulhalik, A., Ahmed, A. & Hamill, G. A., Jun 2017, In : Journal of Hydrology. 549, p. 416-427 12 p.

Research output: Contribution to journalArticle

Open Access
File
cutoff wall
seawater
dam
aquifer
saline intrusion

Modelling the hydraulic characteristics of vortex flow controls for urban drainage applications

Robinson, G., Hamill, G., O'Kane, O. & Robinson, D., 31 May 2017.

Research output: Contribution to conferencePaper

vortex flow
urban drainage
flow control
hydraulics
stormwater
2016

Arch Bridges under flood conditions, a study of the velocity distributions, and the resulting bed scour

Ryan, D., Hamill, G., Solan, B. & Ettema, R., Aug 2016.

Research output: Contribution to conferencePaper

scour
arch
pier
scanner
distribution
8 Citations (Scopus)

Experimental Saltwater Intrusion in Coastal aquifers Using Automated Image Analysis: Applications to Homogeneous Aquifers.

Robinson, G., Ahmed, A. A. & Hamill, G. A., Jul 2016, In : Journal of Hydrology. 538, p. 304-313 10 p.

Research output: Contribution to journalArticle

Open Access
File
saline intrusion
coastal aquifer
image analysis
aquifer
methodology
13 Citations (Scopus)

Predicting axial velocity profiles within a diffusing marine propeller jet

Hamill, G. A. & Kee, C., 15 Sep 2016, In : Ocean Engineering. 124, p. 104-112

Research output: Contribution to journalArticle

Open Access
File
Propellers
Ship propellers
Docks
Ports and harbors
Flow fields
2015
16 Citations (Scopus)

3D Efflux Velocity Characteristics of Marine Propeller Jets

Hamill, G. A., Kee, C. & Ryan, D., Jun 2015, In : Proceedings of the ICE - Maritime Engineering. 168, 2, p. 62-75 14 p.

Research output: Contribution to journalArticle

Open Access
File
Propellers
Design aids
Engineers
13 Citations (Scopus)

Automated image analysis for experimental investigations of salt water intrusion in coastal aquifers

Robinson, G., Hamill, G. A. & Ahmed, A. A., Nov 2015, In : Journal of Hydrology. 530, p. 350-360 11 p.

Research output: Contribution to journalArticle

Open Access
File
coastal aquifer
salt water
image analysis
saline intrusion
methodology

Stability of Short-span Bridges Subject to Overtopping during Floods: Case Studies from UK and the USA

Ryan, D., Ettema, R., Solan, B., Hamill, G. & McRobert, J., 03 Jul 2015. 11 p.

Research output: Contribution to conferencePaper

overtopping
scour
arch
hydraulics
flooding
2014

Experimental Investigation of Transient Saltwater Intrusion in Heterogeneous Porous Media

Robinson, G., Hamill, G. & Ahmed, A., 17 Jun 2014. 4 p.

Research output: Contribution to conferencePaper

File
saline intrusion
porous medium
penetration
flow field
modeling

Stochastic Analysis of Saltwater Intrusion in Heterogeneous Aquifers using Local Average Subdivision

Robinson, G., Ahmed, A. & Hamill, G., 16 Jun 2014. 4 p.

Research output: Contribution to conferencePaper

saline intrusion
penetration
aquifer
permeability
probability density function

The hydraulics and resulting bed scour within the vicinity of Submerged Single Span Arch Bridges

Ryan, D., Hamill, G. A., McRobert, J. & Smith, W., 28 Aug 2014. 6 p.

Research output: Contribution to conferencePaper

Open Access
File
Arch bridges
Scour
Hydraulics
Rain
Arches
2013
3 Citations (Scopus)

Determining Propeller Erosion at the Stern of a Berthing Ship

Ryan, D. & Hamill, G., 10 Jul 2013, In : Journal of Waterway, Port, Coastal, and Ocean Engineering. 139, 4, p. 247–255

Research output: Contribution to journalArticle

Quay walls
quay
Propellers
Erosion
Ships
12 Citations (Scopus)

Determining propeller induced erosion alongside quay walls in harbours using Artificial Neural Networks

Ryan, D., Hamill, G. A. & Johnston, H. T., 01 Feb 2013, In : Ocean Engineering. 59, null, p. 142-151 9 p.

Research output: Contribution to journalArticle

Quay walls
Propellers
Ports and harbors
Erosion
Neural networks
12 Citations (Scopus)

Influence of a boundary on the development of a propeller wash

Johnston, H. T., Hamill, G. A., Wilson, P. R. & Ryan, D., 15 Mar 2013, In : Ocean Engineering. 61, null, p. 50-55 6 p.

Research output: Contribution to journalArticle

Propellers
Velocity measurement
Boundary layers
Estuaries
Ports and harbors
2012
11 Citations (Scopus)

Analysis of the 3D zone of flow establishment from a ship’s propeller

Lam, W-H., Hamill, G., Robinson, D., Raghunathan, S. & Song, Y., May 2012, In : KSCE Journal of Civil Engineering. 16, 4, p. 465-477 12 p.

Research output: Contribution to journalArticle

Ship propellers
Propellers
Flow velocity
Velocity measurement
Turbulence
9 Citations (Scopus)

An effective method for comparing the turbulence intensity from LDA measurements and CFD predictions within a ship propeller jet

Lam, W. H., Robinson, D. J., Hamill, G. A. & Johnston, H. T., 01 Oct 2012, In : Ocean Engineering. 52, null, p. 105-124 19 p.

Research output: Contribution to journalArticle

Ship propellers
Computational fluid dynamics
Turbulence
Lasers
Turbulence models
17 Citations (Scopus)

Semi-empirical methods for determining the efflux velocity from a ship's propeller

Lam, W., Hamill, G. A., Robinson, D. J. & Raghunathan, S., Mar 2012, In : Applied Ocean Research. 35, null, p. 14-24 11 p.

Research output: Contribution to journalArticle

Ship propellers
Propellers
Momentum
Computational fluid dynamics
Lasers
9 Citations (Scopus)

Time-averaged velocity and turbulence intensity at the initial downstream flow from a six-bladed propeller

Lam, W. H., Robinson, D. J., Hamill, G. A., Zhao, J. F. & Jia, M., 01 Sep 2012, In : Ocean Engineering. 51, null, p. 85-93 8 p.

Research output: Contribution to journalArticle

Propellers
Turbulence
Ship propellers
Water tanks
Electric motors
2011
38 Citations (Scopus)

A review of the equations used to predict the velocity distribution within a ship’s propeller jet

Lam, W-H., Hamill, G., Song, Y. C., Robinson, D. & Raghunathan, S., Jan 2011, In : Ocean Engineering. 38 , 1, p. 1-10 10 p.

Research output: Contribution to journalArticle

Ship propellers
Velocity distribution
Propellers
Water
Orifices
7 Citations (Scopus)

Estimating propeller scour at quays alongside a berthing ship.

Ryan, D. & Hamill, G. A., 01 Jun 2011, In : Proceedings of the ICE - Maritime Engineering. 164 , 2, p. 59-70 12 p.

Research output: Contribution to journalArticle

Quay walls
Scour
Propellers
Ships
Ports and harbors

Investigating Experimental Techniques for Measurement of the Downstream Near Wake of a TidalTurbine

Rose, S., Good, A., Atcheson, M., Hamill, G., Johnstone, C., MacKinnon, P., Robinson, D., Grant, A. & Whittaker, T., May 2011, p. 1-5. 5 p.

Research output: Contribution to conferencePaper

8 Citations (Scopus)

Investigation of a ship's propeller jet using momentum decay and energy decay

Lam, W., Song, Y. C., Raghunathan, S., Hamill, G. & Robinson, D., May 2011, In : Canadian Journal of Civil Engineering. 38 (1-11), 6, p. 1-6 6 p.

Research output: Contribution to journalArticle

Ship propellers
momentum
Momentum
energy
Scour
1 Citation (Scopus)

PIV Analysis of the Near Wake of a Tidal Turbine

Good, A., Hamill, G. & Whittaker, T., Jun 2011, p. 1-7. 7 p.

Research output: Contribution to conferencePaper

The Influence of Overflow Velocity on a Stratified Co-Flow System

Hamill, G., Rogan, C. & Johnston, H., Jun 2011, p. 1-7. 7 p.

Research output: Contribution to conferencePaper

2010
27 Citations (Scopus)

Observations of the initial 3D flow from a ship's propeller

Lam, W-H., Hamill, G., Robinson, D. & Raghunathan, S., Oct 2010, In : Ocean Engineering. 37, 14-15, p. 1380-1388 9 p.

Research output: Contribution to journalArticle

Ship propellers
Turbulence
Velocity distribution
Lasers

The decay of maximum velocity within the initial stages of a propeller wash

Hamill, G. & Johnston, H., Jan 2010, In : Journal Of Hydraulic Research. online, p. 605 613 p.

Research output: Contribution to journalArticle

Propellers
Ship propellers
2009
16 Citations (Scopus)

Effect of rudder angle on propeller wash velocities at a seabed

Hamill, G. A., Ryan, D. & Johnston, H. T., 01 Mar 2009, In : Proceedings of the ICE - Maritime Engineering. 162, 1, p. 27-38 12 p.

Research output: Contribution to journalArticle

Propellers
Velocity distribution
Electric network analysis
Sediments
Neural networks
2007

Discussion: The interfacial processes on an entrapped saline wedge: Discussion

Hamill, G., Donnelly, B., MacKinnon, P. & Johnston, H., Sep 2007, In : Proceedings of the ICE - Maritime Engineering. 160, MA3, p. 135 136 p.

Research output: Contribution to journalComment/debate

90 Citations (Scopus)

Reinforced Stone Columns in Weak Deposits – A Laboratory Model Study

Black, J. A., Sivakumar, V., Madhav, M. R. & Hamill, G., Sep 2007, In : Journal of Geotechnical and Geoenvironmental Engineering. 133 (9), 9, p. 1154-1161 8 p.

Research output: Contribution to journalArticle

Deposits
Soils
Peat
soil
peat
2006

Influence of a Horizontal Boundary on a Marine Propeller Wash

Wilson, P., Hamill, G., Kee, C. & Johnston, H., May 2006, p. 463-467. 5 p.

Research output: Contribution to conferencePaper

Investigations of the velocity distributions within a ship's propeller wash

Kee, C., Hamill, G. & Lam, W., May 2006, p. 451. 456 p.

Research output: Contribution to conferencePaper

Simulations of a ship's propeller wash

Lam, W-H., Robinson, D., Hamill, G., Raghunathan, S. & Kee, C., May 2006, p. 457-462. 6 p.

Research output: Contribution to conferencePaper

2 Citations (Scopus)

The interfacial processes on an entrapped saline wedge

Hamill, G., Robinson, D., MacKinnon, P., Johnston, H. & Donnelly, B., Dec 2006, In : Proceedings of the ICE - Maritime Engineering. 159(4), 4, p. 147-156 10 p.

Research output: Contribution to journalArticle

2005
2 Citations (Scopus)

Modelling of saline intrusion in marine outfalls

Shannon, N., MacKinnon, P. & Hamill, G., Jun 2005, In : Proceedings of the ICE - Maritime Engineering. 158 (2), 2, p. 47-58 12 p.

Research output: Contribution to journalArticle

Outfalls
Computational fluid dynamics
Engineers
Seawater
Dilution
2004
25 Citations (Scopus)

Determination of the efflux velocity from a ship's propeller

Hamill, G., Hughes, D. & McGarvey, J. A., Jun 2004, In : Proceedings of the ICE - Maritime Engineering. 157(2), 2, p. 83-91 9 p.

Research output: Contribution to journalArticle

2003

Estimation of the erosion caused by a ship's propeller using artificial neural networks

Hamill, G. & Ryan, D., Sep 2003.

Research output: Contribution to conferencePaper

The formation of the jet produced by a rotating ship's propeller

Hamill, G., Hughes, D. & Ryan, D., 2003.

Research output: Contribution to conferencePaper