Turbulent Wake behind Slender Bodies Including Self-Propelled Configurations

Swanson, R. C.; Schetz, Joseph A.; Jakubowski, A.

doi:10.21236/ada001040

Cited by 17 publications

(11 citation statements)

References 1 publication

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“…In this section we compare the results of the analysis with available experimental data of Jimenez et al (2010), Swanson et al (1974) and Patel and Lee (1977). Jimenez et al (2010) carried out an experimental study of the axisymmetric wake behind a body of revolution for Reynolds number ranging between 1.1 × 10 and 67 × 10 .…”

Section: Resultsmentioning

confidence: 99%

“…In this study, only the data pertaining to Re= 1.1 × 10 is considered. Swanson et al (1974) studies forebody shaped cylinders experimentally of pure drag body, self propelled by axial fluid injection and self propelled with a "well designed" propeller. The data set of Swanson et al (1974) applied in this study is of pure drag body since it best describes the geometry currently analysed.…”

Section: Resultsmentioning

confidence: 99%

“…Swanson et al (1974) studies forebody shaped cylinders experimentally of pure drag body, self propelled by axial fluid injection and self propelled with a "well designed" propeller. The data set of Swanson et al (1974) applied in this study is of pure drag body since it best describes the geometry currently analysed. The Reynolds number of Swanson et al (1974) was 6.18 × 10 which was based on the diameter (d) of the geometry.…”

Section: Resultsmentioning

confidence: 99%

“…The data set of Swanson et al (1974) applied in this study is of pure drag body since it best describes the geometry currently analysed. The Reynolds number of Swanson et al (1974) was 6.18 × 10 which was based on the diameter (d) of the geometry. Patel and Lee (1977) carried out experimental studies in the near wake behind an axisymmetric body in which the Reynolds number was 1.2 × 10 , which was based on the body length (l) and the freestream velocity.…”

Section: Resultsmentioning

confidence: 99%

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Behaviour of Mean Velocity in the Turbulent Axisymmetric Outer Near Wake

Yane

Subaschandar

2017

JAFM

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An asymptotic study of the outer near wake of a long slender body of revolution is carried out. The long slender body is a cylinder which is kept parallel to the flow and takes the shape of a simplified geometry such as that of an underwater vehicle, a rocket or hull form of a ship model. The wake flow is axisymmetric and the analysis has been carried out without any assumption on the eddy viscosity but utilizing the general behaviour of turbulent shear stress in the near wake. The governing equations are solved with appropriate boundary conditions. Similarity analysis for the mean velocity characteristics is carried out which shows the existence of a logarithmic region in the normal direction in the overlap region between the outer near wake and the inner near wake. Also shown is the exponential decay of the mean velocity defect as freestream velocity is reached. Validation of the results of the analysis is done using available experimental data.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Behaviour of Mean Velocity in the Turbulent Axisymmetric Outer Near Wake

Yane

Subaschandar

2017

JAFM

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“…No. [3], [4], [5], and [6J has contributed greatly to the better understanding of the phenomena associated with the turbulent wakes produc~d by self-propelled bodies of practical configurations. The present investigation was designed to study the development of the mean wake flow using the fluid temperature as a tracer and to document the turbulent fluctuations including those of temperature.…”

Section: Slender Bodymentioning

confidence: 99%

The Flow About a Slender Propellor-Driven Body in a Temperature Stratified Fluid

Swean¹,

Schetz²

1977

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Turbulent kinetic energy balance in the wake of a self-propelled body

Faure¹,

Robert²

1996

Experiments in Fluids

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An experimental study of the turbulent wake of a self-propelled body in a wind tunnel is reported. A significant difference is formed between the turbulent kinetic energy balance in a wake with drag and in the wake of a self-propelled body: the production term is very small in comparison with the other terms of the turbulent kinetic energy balance, and this result seems to be typical of self-propulsion. The axial evolution of the wake radius and turbulent kinetic energy profiles are described. Sufficiently far downstream from the body, a self-similar profile is found. Particular attention is devoted to the turbulent kinetic energy balance; all the terms in the energy balance are evaluated experimentally.

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Turbulent Wake behind Slender Bodies Including Self-Propelled Configurations

Cited by 17 publications

References 1 publication

Behaviour of Mean Velocity in the Turbulent Axisymmetric Outer Near Wake

Behaviour of Mean Velocity in the Turbulent Axisymmetric Outer Near Wake

The Flow About a Slender Propellor-Driven Body in a Temperature Stratified Fluid

Turbulent kinetic energy balance in the wake of a self-propelled body

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