A novel parametric level set method coupled with Tikhonov regularization for tomographic laser absorption reconstruction

ZT Niu, H Qi, ZY Zhu, KF Li, YT Ren, MJ He - Applied Thermal Engineering, 2022 - Elsevier
Temperature and concentration distributions are essential parameters for understanding
physicochemical processes in the in-cylinder/in-chamber engine and develo** efficient …

Three-dimensional inhomogeneous temperature tomography of confined-space flame coupled with wall radiation effect by instantaneous light field

Z Niu, H Qi, B Gao, L Wei, Y Ren, M He… - International Journal of …, 2023 - Elsevier
Optical tomography has been demonstrated to be a powerful tool for the three-dimensional
(3D) measurement of the dynamic characteristics of turbulent flame. Many practical …

Three-dimensional rapid visualization of flame temperature field via compression and noise reduction of light field imaging

ZT Niu, H Qi, JW Shi, YT Ren, MJ He, W Zhou - … Communications in Heat …, 2022 - Elsevier
Light field (LF) imaging, as an emerging temperature measurement technique, can
simultaneously capture the intensity and direction information of radiation in the combustion …

Simultaneously retrieving of soot temperature and volume fraction in participating media and laminar diffusion flame using multi-spectral light field imaging

T Li, C Zhang, D Liu - International Journal of Thermal Sciences, 2023 - Elsevier
The inner distribution of the flame properties can be retrieved by solving the intractably ill-
posed inverse problem from spectral radiation imaging. This study presents a simultaneous …

A 3D measurement method of bubbles based on edge gradient segmentation of light field images

L Chen, C Xu, J Li, B Zhang - Chemical Engineering Journal, 2023 - Elsevier
Based on the light field imaging technology, a three-dimensional (3D) measurement method
of bubbles through the use of edge gradient segmentation (TMBEGS) is proposed in this …

Simultaneous reconstruction of flame temperature and soot volume fraction through weighted non-negative least squares and light field imaging techniques

Q Qi, C Xu, MM Hossain, J Li, B Zhang, J Li - Fuel, 2023 - Elsevier
The flame temperature and soot volume fraction are important parameters for combustion
diagnosis, which reflect the combustion reaction process and play a significant role in …

Meshed axisymmetric flame simulation and temperature reconstruction using light field camera

T Li, P Gao, C Zhang, Y Yuan, D Liu, Y Shuai… - Optics and Lasers in …, 2022 - Elsevier
Axisymmetric flames are widely used in research on flame combustion mechanisms and
mass and heat transfer because of their simple structure and applicability to complex …

Nonlinear acoustic tomography for measuring the temperature and velocity fields by using the covariance matrix adaptation evolution strategy algorithm

J Zhang, H Qi, Y Ji, Y Ren, M He… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Accurate measurement of temperature and velocity fields in combustion and flow diagnostic
plays an important role in analyzing the heat transfer mechanism and ensuring the safe …

A low-rank decomposition-based deconvolution algorithm for rapid volumetric reconstruction of light field μPIV

M Gu, C Xu, MM Hossain, J Li - Experiments in Fluids, 2023 - Springer
Light field micro-particle image velocimetry can characterize three-dimensional microflow
through the volumetric reconstruction of tracer particle distributions. This can be achieved by …

Optimum angular arrangement of a multi-light field imaging technique for flame temperature reconstruction

Q Qi, MM Hossain, G Lei, T Wang, T Ling, C Xu - Measurement, 2022 - Elsevier
A burner array produces a multi-modal flame temperature field and a compact combustion
region. A multi-light field imaging technique can retrieve the multi-modal flame temperature …