Physics of Fluids

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Physics of Fluids POF publishes theoretical, computational & experimental papers on dynamics of gases, liquids & compl

A machine learning model enables fast and accurate predictions of the hydrodynamic performance of elastic fins in fish-l...
28/11/2025

A machine learning model enables fast and accurate predictions of the hydrodynamic performance of elastic fins in fish-like swimming.

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Fluid–structure interactions (FSI) underpin diverse biological and engineering systems, yet computational modeling of these interactions remains resource-intens

Arc-shaped breakwaters regulate waves and vortices, where geometry and wave angle shape energy distribution, strengtheni...
27/11/2025

Arc-shaped breakwaters regulate waves and vortices, where geometry and wave angle shape energy distribution, strengthening coastal defense and ensuring calm leeside zones.

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This study investigates the hydrodynamic performance of arc-shaped breakwater (ASBW) under wave diffraction using the advanced non-hydrostatic shallow water mod

Novel full-field rheo-optical technique simultaneously measures stress and birefringence, enabling precise stress–optica...
27/11/2025

Novel full-field rheo-optical technique simultaneously measures stress and birefringence, enabling precise stress–optical coefficient measurement of wormlike micelle solutions in uniaxial extension.

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The present study proposes a novel full-field extensional rheo-optical technique to investigate the relationship between the rheological properties and internal

A new vortex identification method enhances the Q-criterion with rotational coherence and adaptive thresholding, yieldin...
26/11/2025

A new vortex identification method enhances the Q-criterion with rotational coherence and adaptive thresholding, yielding robust, accurate detection across diverse flow conditions.

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Accurate identification of vortical structures is central to the analysis of complex fluid flows. While the Q-criterion remains one of the most widely used vort

This work shows that coronary digital twins reach converged flow within 1–2 preceding cycles under heart rate shifts, es...
26/11/2025

This work shows that coronary digital twins reach converged flow within 1–2 preceding cycles under heart rate shifts, establishing an efficient, physiologic basis for real-time, wearable-driven models

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The advent of digital twins has increased the demand for longer-duration simulations that span multiple physiological states. Digital twins have emerged as powe

A Lagrangian study finds that stretching of turbulent filaments promotes vortex ribbon formation, and vortex stretching ...
25/11/2025

A Lagrangian study finds that stretching of turbulent filaments promotes vortex ribbon formation, and vortex stretching differs significantly from that of material lines.

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By employing a vortex-tube model of filamentary coherent structures in incompressible Navier–Stokes turbulence, we investigate the Lagrangian kinematics of turb

CAE-SINNDy combines convolutional autoencoders and SINDy to model fluid dynamics from noisy, unlabeled data, offering no...
25/11/2025

CAE-SINNDy combines convolutional autoencoders and SINDy to model fluid dynamics from noisy, unlabeled data, offering noise robustness and interpretable latent-space dynamics.

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Understanding complex flow dynamics from noisy, unlabeled data remains a fundamental challenge in fluid mechanics. This study introduces a method called convolu

A dual-guided framework using reduced-order models and mutual information to optimize sensor placement and enforce diffu...
31/10/2025

A dual-guided framework using reduced-order models and mutual information to optimize sensor placement and enforce diffusion constraints for flow field reconstruction from sparse data.

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We present a dual-guided framework for reconstructing unsteady incompressible flow fields using sparse observations. The approach combines optimized sensor plac

This study reveals how a bumblebee-inspired flyer flies and generates acoustics in Martian atmosphere through numerical ...
30/10/2025

This study reveals how a bumblebee-inspired flyer flies and generates acoustics in Martian atmosphere through numerical simulation, offering insights for bio-inspired micro air vehicle design on Mars.

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Micro-air vehicles (MAVs) based on flapping wings have been identified as a potential means for Mars exploration due to their high performance in low-Reynolds-n

Spanwise resolution significantly influences the computational cost of high-fidelity simulations of turbulent flows past...
29/10/2025

Spanwise resolution significantly influences the computational cost of high-fidelity simulations of turbulent flows past bluff bodies. This work investigates its requirements and effects.

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In large-eddy simulations or direct numerical simulations of flows past bluff bodies, the spanwise resolution significantly increases the total cell count and,

The authors experimentally study water drop impact oil layer floating on water pool. The findings reveal how and how muc...
28/10/2025

The authors experimentally study water drop impact oil layer floating on water pool. The findings reveal how and how much oil slicks are transported by oil-containing droplets and particles due to drop impact.

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The occurrence of oil slicks on water surfaces is common in various aquatic environments. Raindrops impact can potentially contribute to the transport of oil sl

This pioneering model introduces heat transfer in two-layer immiscible fluid flow, investigating thermal effects on liqu...
27/10/2025

This pioneering model introduces heat transfer in two-layer immiscible fluid flow, investigating thermal effects on liquid-liquid interface with significant implications for biomedical sciences.

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Immiscible fluids (liquid–liquid interface) are essential in various industrial and biomedical applications, including petroleum industry, chemical engineering,

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