Browsing by Author "Hammond, David W."

Analytical and experimental investigation into the thermal aspects of droplet impingement

Quero García, Manuel (Cranfield University, 2006-03)

The mechanics and heat transfer of droplet impact is studied in the range of parameters interest for Super-cooled Large Droplet icing. The investigation explores the development of the splash produced experimental and ...

Car engine breather icing

Horoufi, Aryan (Cranfield University, 2012-11)

Icing in an engine breather system can block the engine breather pipe, cause excessive crankcase pressure and degrade the engine performance. In this project, a numerical study, experimental tests and CFD analysis are ...

Character and interface shear strength of accreted ice on subcooled surfaces submerged in fuel

Lam, Joseph K.-W.; Lao, Liyun; Hammond, David W.; Power, J. P. (Cambridge University Press, 2016-01-27)

Sudden release of accreted ice in fuel systems could pose a serious challenge in aircraft operation. The resultant snowshower may reach the filter and fuel-oil heat exchanger, causing a restriction in fuel flow to the ...

Experimental and modelling investigation of the deformation, drag and break-up of drizzle droplets subjected to strong aerodynamics forces in relation to SLD aircraft icing

Luxford, Geoffrey (Cranfield UniversitySchool of Engineering, 2005-03)

The distortion, drag and break-up of drizzle droplets subjected to strong aerodynamic forces was investigated to understand the pre-impact behaviour of droplets in aircraft icing from supercooled freezing drizzle. The ...

Experimental and modelling investigation of the deformation, drag and break-up of drizzle droplets subjected to strong aerodynamics forces in relation to SLD aircraft icing

Luxford, Geoffrey (Cranfield University, 2005-03)

The distortion, drag and break-up of drizzle droplets subjected to strong aerodynamic forces was investigated to understand the pre-impact behaviour of droplets in aircraft icing from supercooled freezing drizzle. The ...

An experimental and numerical study on the effect of some properties of non-metallic materials on the ice adhesion level

Piles Moncholi, Eduardo (Cranfield University, 2013)

The rise of the Environmentalism in every sector of the Industry has lead the aircraft and engine manufacturing companies to develop new generations of more environmentally friendly engines. The companies, encouraged ...

Full-scale runback ice: accretion and aerodynamic study

Alegre, Nathalie (Cranfield University, 2010-12)

The runback ice phenomenon is well-known for anti-icing or de-icing systems when the system is not evaporating 100% of the water impinging the surface. The water runs back to the point where the added heat no longer ...

The influence of erosion and wear on the accretion and adhesion of ice for nano reinforced polymetric composites used in aeronautics

Gohardani, Omid (Cranfield University, 2011-12)

The usage of polymeric matrix composites in aerospace applications has been significantly prevalent based on their desired material characteristics, which include higher strength, lower weight and heat resistance. With ...

Influence of flight-path variability of conditions upon in-flight icing

Stanfield, Robin (Cranfield University, 2008-10)

In design and development of aircraft, standard practice uses `the icing design envelopes' to select atmospheric conditions for modelling icing encounters. Over the duration of these encounters, atmospheric conditions ...

Mechanics of ice detachment applied to turbomachinery

Pervier, Marie-Laure (Cranfield University, 2012)

Flying in icing conditions is a real hazard for aircraft as they can undergo potential disastrous increase in drag, reduction in maximum lift which lead to an increase in fuel consumption. Additionally pitot tubes and ...

Methodology to analyse three dimensional droplet dispersion applicable to Icing Wind Tunnels

Sorato, Sebastiano (Cranfield University, 2009)

This dissertation presents a methodology to simulate the dispersion of water droplets in the air flow typical of an Icing Tunnel. It is based on the understanding the physical parameters that influence the uniformity and ...

Modelling, imaging and measurement of distortion, drag and break-up of aircraft- icing droplets

Luxford, Geoffrey; Hammond, David W.; Ivey, Paul C. (2005-01-01)

The distortion, drag and break-up of supercooled drizzle droplets in aircraft icing was investigated in ambient conditions. An effective efficient computer procedure was developed for the distortion and drag of small ...

Role of droplet distortion and break-up in large droplet aircraft icing

Luxford, Geoffrey; Hammond, David W.; Ivey, Paul C. (2004-01-01)

Experimental and analytical evidence is presented to illustrate droplet distortion and potential break-up in the flow conditions similar those of a drizzle droplet in the vicinity of an aerofoil. The droplet size ...

Semi-empirical approach to characterize thin water film behaviour in relation to droplet splashing in modelling aircraft icing

Alzaili, Jafar S. L. (Cranfield University, 2012-07)

Modelling the ice accretion in glaze regime for the supercooled large droplets is one of the most challenging problems in the aircraft icing field. The difficulties are related to the presence of the liquid water film on ...

Study of rate of dust build up on optical windows

Ya-Alimadad, Maryam (Cranfield University, 2016-01)

The work presented in thesis is part of the DANIELA project which aims to replace the current air data system on civil aircrafts with a flush mounted Air Data System (ADS) built around a 3 axis Doppler LIDAR function as ...

Browsing by Author "Hammond, David W."

Browsing by Author "Hammond, David W."

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