Gerard Hamill

Professor

  • Room 02.016B - David Keir Building

    United Kingdom

Accepting PhD Students

PhD projects

I conduct research into: Groundwater supplies from coastal aquifers Saline Intrusions in groundwater and in estuaries Sediment scour at bridges and in harbours The use of CFD to model hydraulics and water engineering applications SuDS

19962020
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Research Output 1996 2020

Article
17 Citations (Scopus)
541 Downloads (Pure)

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
3 Citations (Scopus)
142 Downloads (Pure)

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
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
15 Citations (Scopus)
93 Downloads (Pure)

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
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
13 Citations (Scopus)
234 Downloads (Pure)

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
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

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
13 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
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
9 Citations (Scopus)
64 Downloads (Pure)

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
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

Estimating the velocities in a ship's propeller wash

Hamill, G., Johnston, H. & Stewart, P., 1996, In : Bulletin of the Permanent International Association of Navigation Congresses. 89, p. 46 54 p.

Research output: Contribution to journalArticle

Rapport
Ship
Reconnaissance
Jets
8 Citations (Scopus)
323 Downloads (Pure)

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
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
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
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
4 Citations (Scopus)
38 Downloads (Pure)

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
28 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
14 Citations (Scopus)
264 Downloads (Pure)

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
45 Downloads (Pure)

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
40 Citations (Scopus)

Propeller Wash Scour near Quay Walls

Hamill, G., Johnston, H. & Stewart, D. P., Jul 1999, In : Journal of Waterway, Port, Coastal and Ocean Engineering. 125, 4

Research output: Contribution to journalArticle

Quay walls
quay
Scour
Propellers
scour
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

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
4 Citations (Scopus)
32 Downloads (Pure)

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
18 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

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
5 Citations (Scopus)
7 Downloads (Pure)

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

Open Access
File
Ship propellers
Velocity distribution
Propellers
Normal distribution
Momentum
1 Citation (Scopus)
75 Downloads (Pure)

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
28 Downloads (Pure)

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

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
Propellers
Ships

The influence of a revetment on diffusion of a propeller wash

Hamill, G., Qurrain, R. & Johnston, H., 1996, In : Bulletin of the Permanent International Association of Navigation Congresses. 91, p. 39 44 p.

Research output: Contribution to journalArticle

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

24 Citations (Scopus)
49 Downloads (Pure)

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
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
53 Downloads (Pure)

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
2 Citations (Scopus)
139 Downloads (Pure)

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
Comment/debate

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

Paper

A CFD investigation of the propeller wash induced by a manoeuvring ship

Robinson, D., Brewster, P. & Hamill, G., Apr 1999.

Research output: Contribution to conferencePaper

A computational fluid dynamics investigation of stratified flow

Donnelly, B., Hamill, G., Robinson, D. & MacKinnon, P., Dec 1998.

Research output: Contribution to conferencePaper

9 Citations (Scopus)

A method for predicting velocities within a scour hole produced by a ship's propeller in a harbour

Ryan, D. & Hamill, G., Sep 2000, p. 629. 634 p.

Research output: Contribution to conferencePaper

An experimental and numerical study using computational fluid dynamics into the behaviour of stratified flow.

Donnelly, B., Hamill, G., Robinson, D. & MacKinnon, P., Sep 2000, p. 361. 366 p.

Research output: Contribution to conferencePaper

3 Citations (Scopus)

An experimental investigation of saline intrusion in a long sea outfall

MacKinnon, P., Shannon, N. R., Hamill, G. & Doyle, B. M., May 2000.

Research output: Contribution to conferencePaper

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

CFD predictions of the velocity distributions in the wash of a ship's propeller

Brewster, P., Hamill, G. & Robinson, D., May 1997, p. 763. 767 p.

Research output: Contribution to conferencePaper

1 Citation (Scopus)

Collection of data to validate a numerical model of wave induced intrusion in a marine outfall

Shannon, N. R., MacKinnon, P., Hamill, G. & Doyle, B. M., May 2002, p. 117-217. 101 p.

Research output: Contribution to conferencePaper

Designing for protection against propeller erosion in harbours

Ryan, D. & Hamill, G., Apr 1999.

Research output: Contribution to conferencePaper