Data-driven modal decomposition of transient cavitating flow

Y Liu, J Long, Q Wu, B Huang, G Wang - Physics of Fluids, 2021 - pubs.aip.org
The objective of this paper is to identify the dominant coherent structures within cavitating
flow around a Clark-Y hydrofoil using two data-driven modal decomposition methods, proper …

Nucleation effects on cloud cavitation about a hydrofoil

JA Venning, BW Pearce, PA Brandner - Journal of Fluid Mechanics, 2022 - cambridge.org
The dynamics of cloud cavitation about a three-dimensional hydrofoil are investigated
experimentally in a cavitation tunnel with depleted, sparse and abundant free-stream nuclei …

Partial cavity shedding on a hydrofoil resulting from re-entrant flow and bubbly shock waves

A Bhatt, H Ganesh, SL Ceccio - Journal of Fluid Mechanics, 2023 - cambridge.org
Partial cavity flows forming on a NACA0015 hydrofoil are visualized using high-speed
cinematography and time-resolved X-ray densitometry. These observations reveal the …

Data-driven classification and modeling of combustion regimes in detonation waves

S Barwey, S Prakash, M Hassanaly… - Flow, Turbulence and …, 2021 - Springer
A data-driven approach to classify combustion regimes in detonation waves is implemented,
and a procedure for domain-localized source term modeling based on these classifications …

Data-driven reduction and decomposition with time-axis clustering

S Barwey, V Raman - Proceedings of the Royal Society …, 2023 - royalsocietypublishing.org
A new approach for modal decomposition through re-interpretation of unsteady dynamics,
termed time-axis clustering, is developed in this work and is demonstrated on an …

[HTML][HTML] Interaction between surface blowing and re-entrant jet in active control of hydrofoil cavitation

CS Pant, SH Frankel - Ocean Engineering, 2021 - Elsevier
Numerically simulations were performed to study the effect of active flow control (through
steady blowing) on unsteady cavitation over a modified scaled-down Francis turbine …

Numerical investigation on the inhibition mechanisms of unsteady cavitating flow around stepped hydrofoils

T Yin, G Pavesi, J Pei, S Yuan - Ocean Engineering, 2022 - Elsevier
In this work, the influence of obstacles on the control of unsteady cavitating flows is
investigated numerically within the framework of homogeneous flow. The predicted Strouhal …

X-ray phase contrast and absorption imaging for the quantification of transient cavitation in high-speed nozzle flows

IK Karathanassis, M Heidari-Koochi, Q Zhang… - Physics of …, 2021 - pubs.aip.org
High-flux synchrotron radiation has been employed in a time-resolved manner to
characterize the distinct topology features and dynamics of different cavitation regimes …

Data-driven analysis of relight variability of jet fuels induced by turbulence

M Hassanaly, Y Tang, S Barwey, V Raman - Combustion and Flame, 2021 - Elsevier
For safety purposes, reliable reignition of aircraft engines in the event of flame blow-out is a
critical requirement. Typically, an external ignition source in the form of a spark is used to …

Eulerian–Lagrangian multiscale numerical analysis of multimodal partial shedding dynamics

B Tian, B Huang, L Li, Y Wu - International Journal of Multiphase Flow, 2024 - Elsevier
The objective of this paper is to investigate the multimodal partial shedding dynamics from a
multiscale perspective of cloud cavitating flows under two distinct cavity shedding …