Matthew Juniper conference presentations
Created: | 2013-01-03 10:48 |
---|---|
Institution: | Department of Engineering |
Editors' group: | Editors group for "Department of Engineering". |
Description: | Narrated presentations from Matthew Juniper's group at the University of Cambridge. Subjects include hydrodynamic stability, thermoacoustic stability, combustion instability, nonlinear behaviour of thermoacoustic systems, non-normality in thermoacoustics, transient growth, adjoint sensitivity analysis, direct and adjoint global modes, swirling flows, local stability analysis, and weakly nonlinear analysis. |
Media items
This collection contains 16 media items.
Media items
Actuator waveform design using nonlinear adjoint looping on the acoustic flow in an inkjet print head
![Visible to: World](/images/visibility_icon_world.gif)
10 views
In inkjet print heads, several hundred microseconds would be required for acoustic reverberations to die away naturally so the actuator is used to eliminate the reverberations...
Collection: Matthew Juniper conference presentations
Institution: Department of Engineering
Created: Tue 17 Nov 2020
Airfoil Optimization using a physics-constrained neural network
![Visible to: World](/images/visibility_icon_world.gif)
12 views
Presentation to the American Physical Society at the 2021 meeting of the Division of Fluid Dynamics
Collection: Matthew Juniper conference presentations
Institution: Department of Engineering
Created: Thu 25 Nov 2021
Data Assimilation in Thermoacoustics
![Visible to: World](/images/visibility_icon_world.gif)
8 views
A 26 minute presentation to the UK Fluids Network Special Interest Group in Flow Instability on current work on Data Assimilation in Thermoacoustics
Collection: Matthew Juniper conference presentations
Institution: Department of Engineering
Created: Fri 12 Jun 2020
Forcing of self-excited round jet diffusion flames
![Visible to: World](/images/visibility_icon_world.gif)
72 views
Movie of the presentation by Matthew Juniper at the 32nd International Symposium on Combustion, Montreal, Canada, 3-8 August 2008
Collection: Matthew Juniper conference presentations
Institution: Department of Engineering
Created: Wed 9 Jan 2013
Inverse problems in magnetic resonance velocimetry
![Visible to: World](/images/visibility_icon_world.gif)
11 views
We derive and implement an algorithm that takes noisy magnetic resonance velocimetry (MRV) images of Stokes flow and infers the velocity field, the most likely position of the...
Collection: Matthew Juniper conference presentations
Institution: Department of Engineering
Created: Tue 8 Jun 2021
Inverse problems in magnetic resonance velocimetry: shape, velocity, and boundary condition inference
![Visible to: World](/images/visibility_icon_world.gif)
55 views
Although Magnetic Resonance Imaging provides velocity fields, these fields are noisy and do not show the boundaries clearly. We take this noisy data and infer the most probable...
Collection: Matthew Juniper conference presentations
Institution: Department of Engineering
Created: Fri 20 Nov 2020
Made for each other: adjoint solvers and high-dimensional gradient-augmented Bayesian optimization
![Visible to: World](/images/visibility_icon_world.gif)
11 views
Presentation to the American Physical Society at the 2021 meeting of the Division of Fluid Dynamics
Collection: Matthew Juniper conference presentations
Institution: Department of Engineering
Created: Thu 25 Nov 2021
Model selection by maximizing the marginal likelihoods of candidate physics-based models of a thermoacoustic experiment
![Visible to: World](/images/visibility_icon_world.gif)
27 views
Presentation to the American Physical Society at the 2021 Fluid Dynamics conference
Collection: Matthew Juniper conference presentations
Institution: Department of Engineering
Created: Thu 25 Nov 2021
Passive control and sensitivity analysis of thermo-acoustic systems via adjoint equations
![Visible to: World](/images/visibility_icon_world.gif)
469 views
This presentation describes the application of adjoint-based sensitivity analysis to a thermo-acoustic system. In a single calculation, this analysis shows how a passive feedback...
Collection: Matthew Juniper conference presentations
Institution: Department of Engineering
Created: Fri 4 Jan 2013
Physics-based Statistical Inference: making qualitative models quantitatively accurate
![Visible to: World](/images/visibility_icon_world.gif)
7 views
Seminar given for the Aerospace Engineering Department at the University of Illinois, 30th November 2020
Collection: Matthew Juniper conference presentations
Institution: Department of Engineering
Created: Thu 10 Dec 2020
Physics-enhanced velocimetry (PEV) for joint reconstruction and segmentation of noisy velocity images
![Visible to: World](/images/visibility_icon_world.gif)
72 views
We filter flow MRI images by using one crucial piece of information: that the image is of a liquid flowing through a tube. We then find the flow that is most likely to have given...
Collection: Matthew Juniper conference presentations
Institution: Department of Engineering
Created: Tue 15 Nov 2022
Physics-Informed Compressed Sensing (PICS) for joint reconstruction and segmentation of sparse PC-MRI signals
![Visible to: World](/images/visibility_icon_world.gif)
22 views
MRI machines sample in frequency/wavenumber space, rather than real space. We assimilate this wavenumber data directly into a Navier-Stokes boundary value problem. This gives the...
Collection: Matthew Juniper conference presentations
Institution: Department of Engineering
Created: Tue 15 Nov 2022
Physics-informed compressed sensing (PICS): reconstruction of magnetic resonance velocimetry signals as an inverse...
![Visible to: World](/images/visibility_icon_world.gif)
19 views
Presentation to the American Physical Society at the 2021 meeting of the Division of Fluid Dynamics
Collection: Matthew Juniper conference presentations
Institution: Department of Engineering
Created: Thu 25 Nov 2021
Statistical Learning in Thermoacoustics
![Visible to: World](/images/visibility_icon_world.gif)
3 views
This is a conference presentation of our recent work on Statistical Learning in Thermoacoustics. We use statistical learning techniques to infer the parameters of a...
Collection: Matthew Juniper conference presentations
Institution: Department of Engineering
Created: Fri 12 Feb 2021
The effect of confinement on the stability of the Rankine vortex with axial flow
![Visible to: World](/images/visibility_icon_world.gif)
53 views
Movie of Matthew Juniper's presentation at the APS Fluid Dynamics Division conference in Salt Lake City, Utah, 18-20 November 2007
Collection: Matthew Juniper conference presentations
Institution: Department of Engineering
Created: Wed 9 Jan 2013
The nonlinear behaviour of a ducted premixed flame (a numerical study)
![Visible to: World](/images/visibility_icon_world.gif)
276 views
When a flame is placed in a duct, acoustic oscillations couple with heat release oscillations and can grow to high amplitudes. This presentation shows the behaviour of a numerical...
Collection: Matthew Juniper conference presentations
Institution: Department of Engineering
Created: Fri 4 Jan 2013