Open Access Repositories: Recent submissions
Now showing items 741-760 of 4204
-
Tomographic PIV measurement of coherent dissipation scale structures
(University of CambridgeDepartment of Engineering, 2010-05-04)Further understanding the small scale coherent structures which occur in high Reynolds number turbulence would be of enormous benefit. Therefore, the aim of the current project was to make well resolved three-dimensional ...
-
Rainfall trends in India and their impact on soil erosion and land management
(University of CambridgeDepartment of Engineering, 2010-02-09)Under the threat of global warming it is vital to determine the impact that future changes in climate may have on the environment and to what extent any adverse effects can be mitigated. In this research an assessment was ...
-
Scalar dissipation rate based flamelet modelling of turbulent premixed flames
(University of CambridgeDepartment of EngineeringTrinity Hall, 2010-03-16)Lean premixed combustion has potential for reducing emissions from combustion devices without compromising fuel efficiency, but it is prone to instabilities which presents design difficulties. From emissions point of view ...
-
Feedback control of oscillations in combustion and cavity flows
(University of CambridgeDepartment of Engineering, 2010-02-09)This thesis considers the control of combustion oscillations, motivated by the susceptibility of lean premixed combustion to such oscillations, and the long and expensive development and commissioning times that this is ...
-
DOLFIN: Automated Finite Element Computing
(2009)We describe here a library aimed at automating the solution of partial differential equations using the finite element method. By employing novel techniques for automated code generation, the library combines a high level ...
-
PrologPF: Parallel Logic and Functions on the Delphi Machine
(University of CambridgeComputer LaboratoryGirton College, 1998-06-16)PrologPF is a parallelising compiler targeting a distributed system of general purpose workstations connected by a relatively low performance network. The source language extends standard Prolog with the integration of ...
-
Analysis of a finite element formulation for modelling phase separation
(Springer, 2007)The Cahn-Hilliard equation is of importance in materials science and a range of other fields. It represents a diffuse interface model for simulating the evolution of phase separation in solids and fluids, and is a nonlinear ...
-
The Development of a Set of Principles for Through-Life Management of Engineering Information
(Engineering Design Centre, Department of Engineering, University of Cambridge, 2009-10-26)Corporate business models are shifting away from product delivery paradigms to product-service paradigms, where ongoing through-life service support is preeminent. In the UK, a Grand Challenge project (www.kimproject.org) ...
-
Analysis of an interface stabilised finite element method: The advection-diffusion-reaction equation
(2009-10-29)Analysis of an interface stabilised finite element method for the scalar advection-diffusion-reaction equation is presented. The method inherits attractive properties of both continuous and discontinuous Galerkin methods, ...
-
Supporting material for the paper 'Analysis of an interface stabilised finite element method: The advection-diffusion-reaction equation'
(2009-10-28)This solver is in support of the paper 'Analysis of an interface stabilised finite element method: The advection-diffusion-reaction equation', by Garth N. Wells
-
On the full lagrangian approach and thermophoretic deposition in gas-particle flows
(University of CambridgeDepartment of EngineeringClare College, 2003-11-25)Theoretical and experimental studies of particle deposition in turbulent pipe flow have been carried out for over forty years, but some of the most important transport mechanisms are still not well understood. The first ...
-
Optimisations for quadrature representations of finite element tensors through automated code generation
(ACM Transactions on Mathematical Software, 2010)We examine aspects of the computation of finite element matrices and vectors which are made possible by automated code generation. Given a variational form in a syntax which resembles standard mathematical notation, the ...
-
Supporting material for the paper 'Automated Modelling of Evolving Discontinuities'
(2009-07-23)This computer code is in support of the paper 'Automated Modelling of Evolving Discontinuities' by Mehdi Nikbakht and Garth N. Wells in the journal Algorithms.
-
-
Ignition of bluff-body methane flames
(2009-05-21)The movies show the ignition process following a spark in a bluff-body stabilised methane non-premixed flame. The flow is described in: S.F. Ahmed, R. Balachandran, T. Marchione, E. Mastorakos, Spark ignition of turbulent ...
-
Ignition of spray flame with multiple spark
(2009-05-25)The movies have been taken at 4000 fps. The spark is placed at a distance z from the nozzle and at 5mm from the enclosure. The ignition unit delivers at 100Hz a spark lasting 8ms, followed by 2ms of no activity. The front ...
-
Autoignition of a H2 jet in hot air flow
(2009-05-21)The movie (taken with a conventional video camera at 30fps) shows the various operation modes of the Cambridge Autoignition experiment, described in: C.N. Markides, E. Mastorakos, An experimental study of hydrogen ...
-
Representations of finite element tensors via automated code generation
(2009-02-26)We examine aspects of the computation of finite element matrices and vectors which are made possible by automated code generation. Given a variational form in a syntax which resembles standard mathematical notation, the ...
-
HDPE (CM1) optical birefringence pattern in cross-slot flow, piston speed 4.4mm/s, 175C
(2008-09-05)The optical birefringence pattern obtained from lightly branched high density polyethyene (HDPE - produced by metallocene catalysis polymerisation) flowing in a cross-slot multi-pass rheometer cell. Experiment carried out ...
-
Flame in methane jet after spark ignition
(2009-05-21)The video shows the flame motion following spark ignition in a turbulent methane jet. The flow conditions were: 30% air, 70% CH4, jet velocity 12.5m/s & 25m/s, framing rate 4200 fps, spark at r=0, z=40d (40 jet diameters; ...
