Instantaneous 3D flame imaging by background-oriented schlieren tomography
We apply background-oriented schlieren (BOS) imaging with computed tomography to
reconstruct the instantaneous refractive index field of a turbulent flame in 3D. In BOS …
reconstruct the instantaneous refractive index field of a turbulent flame in 3D. In BOS …
Fuel/air mixing characteristics of a Micromix burner for hydrogen-rich gas turbine
X Chen, H Wang, X Wang, X Liu, Y Zhu - Energy, 2023 - Elsevier
As a promising hydrogen-rich gas turbine combustion technology, Micro-mixing combustion
may produce a new flame stabilization mechanism due to the novel structure. To investigate …
may produce a new flame stabilization mechanism due to the novel structure. To investigate …
Mean flow data assimilation based on physics-informed neural networks
Physics-informed neural networks (PINNs) can be used to solve partial differential equations
(PDEs) and identify hidden variables by incorporating the governing equations into neural …
(PDEs) and identify hidden variables by incorporating the governing equations into neural …
Fast and robust volumetric refractive index measurement by unified background-oriented schlieren tomography
SJ Grauer, AM Steinberg - Experiments in Fluids, 2020 - Springer
We propose a novel approach to background-oriented schlieren (BOS) tomography (BOST)
that unifies the deflection sensing and reconstruction algorithms. BOS is a 2D flow …
that unifies the deflection sensing and reconstruction algorithms. BOS is a 2D flow …
Super-resolution of time-resolved three-dimensional density fields of the B mode in an underexpanded screeching jet
The estimation of time-resolved three-dimensional (3D) density fields of an underexpanded
jet at the nozzle pressure ratio of 2.42, a so-called “spatiotemporal super-resolution” was …
jet at the nozzle pressure ratio of 2.42, a so-called “spatiotemporal super-resolution” was …
Time-resolved three-dimensional imaging of flame refractive index via endoscopic background-oriented Schlieren tomography using one single camera
Due to the recent progresses in sensor and laser technologies, volumetric tomography has
become a popular diagnostic for combustion studies. Background-oriented Schlieren …
become a popular diagnostic for combustion studies. Background-oriented Schlieren …
Assessment of three-dimensional density measurements from tomographic background-oriented schlieren (BOS)
Tomographic background-oriented schlieren (BOS) is used to measure three-dimensional
instantaneous density fields in turbulent flows. Density gradients are related to the refractive …
instantaneous density fields in turbulent flows. Density gradients are related to the refractive …
Experimental investigation of the helical mode in a stratified swirling flame
In a centrally-staged combustor, the stratified swirling flame often manifests a helical mode,
which is characterized by the emergence of helical vortices, including the precessing vortex …
which is characterized by the emergence of helical vortices, including the precessing vortex …
Volumetric imaging of flame refractive index, density, and temperature using background-oriented Schlieren tomography
Volumetric imaging represents one of the major development trends of flow diagnostics due
to both the advancement in hardware and the requirement for more information to further …
to both the advancement in hardware and the requirement for more information to further …
Three-dimensional density field of a screeching under-expanded jet in helical mode using multi-view digital holographic interferometry
O Léon, D Donjat, F Olchewsky, JM Desse… - Journal of Fluid …, 2022 - cambridge.org
A synchronised multi-axis digital holographic interferometry set-up is presented for the study
of 3-D flow fields with large density gradients. This optical configuration provides …
of 3-D flow fields with large density gradients. This optical configuration provides …