Accurate near-wall measurements in wall bounded flows with optical flow velocimetry via an explicit no-slip boundary condition

GR Jassal, BE Schmidt - Measurement Science and Technology, 2023 - iopscience.iop.org
High fidelity near-wall velocity measurements in wall bounded fluid flows continue to pose a
challenge and the resulting limitations on available experimental data cloud our …

Wall shear-stress extraction by an optical flow algorithm with a sub-grid formulation

TH Tran, L Chen - Acta Mechanica Sinica, 2021 - Springer
In this study, we developed a novel optical-flow algorithm for determining the wall shear-
stress on the surface of objects. The algorithm solves the thin-oil-film equation using a …

Accurate Near Wall Measurements in Wall Bounded Flows with wOFV via an Explicit No-Slip Boundary Condition

GR Jassal, BE Schmidt - AIAA SCITECH 2023 Forum, 2023 - arc.aiaa.org
View Video Presentation: https://doi. org/10.2514/6.2023-2444. vid High fidelity near-wall
velocity measurements in wall bounded fluid flows continue to pose a challenge and cloud …

Sensitivity of wavelet-based optical flow (wOFV) to sources of error

BE Schmidt, WE Page, JA Sutton - AIAA Scitech 2021 Forum, 2021 - arc.aiaa.org
View Video Presentation: https://doi. org/10.2514/6.2021-0123. vid The influence of several
non-ideal experimental effects on the accuracy of a wavelet-based optical flow (wOFV) …

Evaluation of a Generalized Implementation of Stereoscopic Wavelet-based Optical Flow Velocimetry (swOFV)

WE Page, JA Sutton - AIAA SCITECH 2022 Forum, 2022 - arc.aiaa.org
View Video Presentation: https://doi. org/10.2514/6.2022-1944. vid An implementation of
stereoscopic wavelet-based optical flow velocimetry (swOFV) using a general mapping …

Application of High-Resolution Wavelet-based Optical Flow Velocimetry (wOFV) to Hypersonic Boundary Layers

WE Page, MT Aultman, L Duan, JA Sutton… - AIAA SCITECH 2024 …, 2024 - arc.aiaa.org
The performance of wavelet-based optical flow velocimetry (wOFV) applied to tracer particle
images from hypersonic boundary layer flows is assessed. Two modifications of wOFV to …

Determining velocity from tagging velocimetry images using optical flow

TS Gevelber, BE Schmidt, MA Mustafa… - Experiments in …, 2022 - Springer
In this work, we present the application of wavelet-based optical flow velocimetry (wOFV) to
tagging velocimetry image data. wOFV is demonstrated to compare favorably to cross …

Preliminary Development of Tomographic Wavelet-based Optical Flow Velocimetry (TwOFV)

WE Page, JA Sutton - AIAA SCITECH 2023 Forum, 2023 - arc.aiaa.org
View Video Presentation: https://doi. org/10.2514/6.2023-0633. vid The framework and
implementation of a tomographic wavelet-based optical flow velocimetry (TwOFV) technique …

Extensional study of optical-flow enhanced hybrid PIV method for dual-plane stereoscopic PIV measurement

S Wang, J Zheng, L Li, X Xia, X Han… - Measurement …, 2022 - iopscience.iop.org
High-speed dual-plane stereoscopic particle image velocimetry (DP-s-PIV) can capture time-
resolved three-component velocity and vorticity vectors in the measurement region, but its …

Optical Flow Velocimetry using a Quasi-Optimal Basis with Implicit Regularization

GR Jassal, JA Dobrosotskaya… - AIAA AVIATION 2022 …, 2022 - arc.aiaa.org
View Video Presentation: https://doi. org/10.2514/6.2022-3336. vid A set of quasi-optimal
bases of orthonormal functions to represent fluid flow fields are formed using the singular …