Wind tunnel velocity profiles generated by differentially-spaced flat plates

Phillips, Jeremy C.; Thomas, N. H.; Perkins, Richard J.; Miller, P. C. H.

doi:10.1016/s0167-6105(98)00207-4

Cited by 12 publications

(5 citation statements)

References 8 publications

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“…Ideally, the method must produce a smooth velocity profile with a low turbulence level. Designs for shear flow generators have used a variety of techniques: an array of differentially spaced circular rods (Owen and Zienkiewicz, 1957), contoured honeycombs (Kotansky, 1966;Ahmed and Lee, 1997), curved screens (Castro, 1976), separate channels with adjustable blockage (Karnik and Tavoularis, 1987), or differentially spaced flat places (Phillips et al, 1999).…”

Section: Shear Flow Generatormentioning

confidence: 99%

On uniform planar shear flow around a circular cylinder at subcritical Reynolds number

Sumner

Akosile

2003

Journal of Fluids and Structures

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Section: Shear Flow Generatormentioning

confidence: 99%

On uniform planar shear flow around a circular cylinder at subcritical Reynolds number

Sumner

Akosile

2003

Journal of Fluids and Structures

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“…The numerical simulation results were validated with the experimental data coming from [20]. The testing facility was similar to the one reported by Philips et al [43] and allowed for observing the shear-particulate flow with flat plates with a variable pitch. The test section was 2 m long with a 0.4 × 0.2 m 2 cross-sectional area channel.…”

Section: Validationmentioning

confidence: 65%

Eulerian–Eulerian RSTM-PDF Modeling of Turbulent Particulate Flow

et al. 2023

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A novel 3D computational model was developed for the turbulent particulate two-phase flow simulation in the rectangular channel. The model is based on the Eulerian approach applied to 3D Reynolds-averaged Navier–Stokes modeling and statistical Probability Distribution Function method. The uniqueness of the method lies in the direct calculation of normal and transverse components of the Reynolds stresses for both gas and particles. Two cases were examined: a conventional channel flow and grid-generated turbulence flow. The obtained numerical results have been verified and validated by the experimental data, received from the turbulent particle dispersion test. The computed values of the particles’ turbulent dispersion and the maximum value of the particulate concentration distribution show good agreement with the experimental results. The examples are ranged from coal and other bulk material pneumatic transport, vertical fluidized beds, coal gasifiers, and chemical reactors.

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“…The experimental setup for the investigations of particle dispersion (Figure 2) allowed to generate the shear flow similarly to [31] by means of flat plates installed with a varied pitch. The test section was 2 m long with 400 × 200 mm cross section.…”

Section: Laboratory Experimentsmentioning

confidence: 99%

Two-Fluid RANS-RSTM-PDF Model for Turbulent Particulate Flows

Lauk¹,

Kartushinsky²,

Hussainov³

et al. 2016

Numerical Simulation - From Brain Imaging to Turbulent Flows

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A novel three-dimensional (3D) model based on Reynolds turbulence stress model (RSTM) closure of equations of carrier and particulate phases was elaborated for channel turbulent flows. The essence of the model is the direct calculation of normal and shear components of the Reynolds stresses for the particulate phase similar to the carrier fluid. The model is based on the Eulerian approach, which is applied for the 3D RANS modeling of the carrier flow and the particulate phase and the statistical probability dense function (PDF) approach focusing on the mathematical description of the second moments of the particulate phase.The obtained numerical results have been verified and validated by comparison with experimental data obtained on turbulent dispersion of solid particles ejected from point source for turbulent uniform linear shear flow. Two cases of spatial orientation of shear of the flow mean velocity were examined: in the direction of gravity and in the direction perpendicular to gravity. Numerical data on turbulent dispersion of particles and spatial displacement of the maximum value of the concentration distribution show satisfactory agreement with experimental results.

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Wind tunnel velocity profiles generated by differentially-spaced flat plates

Cited by 12 publications

References 8 publications

On uniform planar shear flow around a circular cylinder at subcritical Reynolds number

On uniform planar shear flow around a circular cylinder at subcritical Reynolds number

Eulerian–Eulerian RSTM-PDF Modeling of Turbulent Particulate Flow

Two-Fluid RANS-RSTM-PDF Model for Turbulent Particulate Flows

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