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
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
9 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
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
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
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
54 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
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
24 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
468 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
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
68 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
21 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...
15 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
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
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)
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