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Dr Dongfang Liang

Dr Dongfang Liang

University Lecturer

Dongfang Liang is interested in taking PhD students.

Dongfang Liang is available for consultancy.

Department of Engineering
Trumpington Street

Cambridge CB2 1PZ
Office Phone: +44 (0)1223 764829 (Dept), 331596 (Chu)

Biography:

Dongfang Liang graduated in hydraulic engineering from Tsinghua University in China (BEng in 1998 and PhD in 2003).  His PhD project involved the developed of large-scale PIV (Particle Image Velocimetry) and PLIF (Planar Laser Induced Fluorescence) techniques for shallow flow measurements.  When working in the University of Western Australia and Cardiff University as research associates, he widened his research by concentrating on numerical modelling of local scour phenomena and flash floods in urban environments.  He became a University Lecturer in Civil Engineering Fluid Mechanics at Cambridge since 2006.  He is also a Fellow and Director of Studies of Churchill College.

Departments and Institutes

Department of Engineering:
Lecturer

Research Interests

Dongfang Liang’s current research topics include the scour and liquefaction around offshore structures, tsunami wave propagation, run-up and impact on coastal structures, flood risk modelling, turbulent mixing and water quality modelling.

Research Themes:

Hydrodynamics and Hydro-Environment

The importance of water cannot be overemphasized in sustaining life and maintaining public health.  Water also presents itself as an important natural force in transporting sediments, nutrients, pollutants etc.  In the form of floods, storm surges, rogue waves and tsunamis, it can leave huge swath of devastation.  With the increasing exploitation of offshore resources, including marine renewables, study on the interactions between water flows, offshore structures and seabed becomes more and more important.  Our increasing environmental awareness and recreational usage of waters demand a better understanding of the fate and distribution of pollutants, such as toxicants and pathogens, within water bodies.

People linked with this: Dr Liang, Mr McRobie, Dr Fenner, Dr Parker

Facilities and equipment:

dongfang1

 

Oscillating Tray Rig

A flat tray oscillates with simple harmonic motion in a tank of water 2.5m long, 0.35 m wide and 0.8 m high.  The tray is filled with sand and can be mounted with different model structures, so that the development of sand ripples and dunes and the scour around offshore foundations in oscillatory flow conditions can be tested.

 

 

 

 

 

dongfang2Current and Wave Flume

A variable-slope flume of 4.5m long, 0.25m wide and 0.5m high is equipped with a piston-type wave maker and a centrifugal pump, so that both wave and current can be generated.

 

 

 

 

dongfang3

Shallow Water Tank

A flat-bed flume is 3.5m long, 0.6m wide and 0.2m deep.  Water can be circulated by a small pump.

 

 

 

 

 

 

 

Teaching

Dongfang is the module leader for 3D5 Water Engineering.

Keywords

  • Hydraulics

Topics

  • Hydrodynamics and Hydro-Environmental

Key Publications

Please see link for my publication list.