Time resolved PIV and flow visualization of 3D sheet cavitation

Foeth, Evert-Jan; Doorne, C. W. H. van; Terwisga, Tom van; Wieneke, Bernhard

doi:10.1007/s00348-005-0082-9

Cited by 123 publications

(59 citation statements)

References 19 publications

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“…The variation in the spanwise loading was accomplished by the distribution of the twist angle of the foil, which was high in the center and zero at the tunnel walls. Based on the geometry of the foil of Dang, a new twisted hydrofoil denoted by 3D Twist11 hydrofoil, see Foeth et al [68], Koop et al [113] and appendix D was designed with a clear and controllable three-dimensional sheet cavity on a relatively simple two-dimensional like configuration.…”

Section: Chapter 2 Physical Aspects Of Sheet Cavitationmentioning

confidence: 99%

“…Foeth et al [68] carried out experiments for the 3D Twist11 hydrofoil in steady and unsteady inflow conditions in the cavitation tunnel at Delft University, see also Foeth [67]. Their focus was to generate sheet cavities that are three-dimensional in character similar to ones that occur on ship propellers.…”

Section: Dynamics Of the Vapor Sheet On 3d Twist11 Hydrofoilmentioning

confidence: 99%

“…In figures 2.7(a)-(t), taken from Foeth et al [69], the process of the vapor shedding is presented. The shedding is periodic, constant in its shedding frequency, and always includes the same macro structural collapse [68]. In figure 2.7(a) the attached cavity has reached its maximum length.…”

Section: Dynamics Of the Vapor Sheet On 3d Twist11 Hydrofoilmentioning

confidence: 99%

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Numerical simulation of unsteady three-dimensional sheet cavitation

Koop¹

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Section: Chapter 2 Physical Aspects Of Sheet Cavitationmentioning

confidence: 99%

Section: Dynamics Of the Vapor Sheet On 3d Twist11 Hydrofoilmentioning

confidence: 99%

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Numerical simulation of unsteady three-dimensional sheet cavitation

Koop¹

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“…Also, they mentioned for thick enough cavities, the re-entrant jet does not interact significantly with the cavity interface as it moves upstream. (Foeth et al 2006) carried out experiments for the 3D Twist11 hydrofoil in steady and unsteady inflow conditions in the cavitation tunnel at Delft University. Their focus was to generate sheet cavities that are three-dimensional in character similar to ones that occur on ship propellers.…”

Section: Introductionmentioning

confidence: 99%

“…Based on experimental observation (Ji et al 2014). They domenstrates that the shedding is periodic, constant in its shedding frequency, and always includes the same macro structural collapse (Foeth et al 2006).…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of the Turbulent Flow Structure Induced by the Cavitation Shedding using LES

Kanfoudi

Bellakhal

Ennouri

et al. 2017

JAFM

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To analyze the interaction between the turbulent flow structure with the cavitation shedding dynamics, a three-dimensional unsteady cavitating turbulent flow around the three-dimension NACA009 hydrofoil is investigated in this study. The cavitating flow in has been modeled with a homogeneous mixture of liquid and vapor using LES. The interaction between the cavitation and the fluid vortex is analyzed and discussed. The results demonstrate that the vortex stretching is mainly in the center of the cloud cavity and changes quasiperiodically as the cloud cavity evolves. As a result, the mechanism of the inception of cavitation, re-entrant jet and cavitation cloud shedding are accurately captured and predicted by LES in accordance with the experiment data.

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Pilot‐scale open‐channel raceways and flat‐panel photobioreactors maintain well‐mixed conditions under a wide range of mixing energy inputs

Quiroz‐Arita

Blaylock

Gharagozloo

et al. 2020

Biotech & Bioengineering

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Turbulent mixing in pilot‐scale cultivation systems influences the productivity of photoautotrophic cultures. We studied turbulent mixing by applying particle image velocimetry and acoustic doppler velocimetry to pilot‐scale, flat‐panel photobioreactor, and open‐channel raceway. Mixing energy inputs were varied from 0.1 to 2.1 W·m−3. The experimental results were used to quantify turbulence and to validate computational fluid dynamics models, from which Lagrangian representations of the fluid motion in these reactors were derived. The results of this investigation demonstrated that differences in mixing energy input do not significantly impact the structure of turbulence and the light/dark cycling frequencies experienced by photoautotrophic cells within the reactors. The experimental and computational results of our research demonstrated that well‐mixed conditions exist in pilot‐scale, flat‐panel photobioreactors and open‐channel raceways, even for relatively low mixing energy inputs.

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Time resolved PIV and flow visualization of 3D sheet cavitation

Cited by 123 publications

References 19 publications

Numerical simulation of unsteady three-dimensional sheet cavitation

Numerical simulation of unsteady three-dimensional sheet cavitation

Numerical Analysis of the Turbulent Flow Structure Induced by the Cavitation Shedding using LES

Pilot‐scale open‐channel raceways and flat‐panel photobioreactors maintain well‐mixed conditions under a wide range of mixing energy inputs

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