Replication Data for: Wake merging and turbulence transition downstream of side-by-side porous discs (doi:10.18710/XAEWC5)

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Document Description

Citation

Title:

Replication Data for: Wake merging and turbulence transition downstream of side-by-side porous discs

Identification Number:

doi:10.18710/XAEWC5

Distributor:

DataverseNO

Date of Distribution:

2025-06-02

Version:

1

Bibliographic Citation:

Hearst, R. Jason; Berstad, Fanny Olivia Johannessen; Neunaber, Ingrid, 2025, "Replication Data for: Wake merging and turbulence transition downstream of side-by-side porous discs", https://doi.org/10.18710/XAEWC5, DataverseNO, V1

Study Description

Citation

Title:

Replication Data for: Wake merging and turbulence transition downstream of side-by-side porous discs

Identification Number:

doi:10.18710/XAEWC5

Authoring Entity:

Hearst, R. Jason (NTNU – Norwegian University of Science and Technology)

Berstad, Fanny Olivia Johannessen (NTNU – Norwegian University of Science and Technology)

Neunaber, Ingrid (KTH - Royal Institute of Technology)

Producer:

NTNU – Norwegian University of Science and Technology

Distributor:

DataverseNO

Distributor:

NTNU – Norwegian University of Science and Technology

Access Authority:

Hearst, R. Jason

Depositor:

Neunaber, Ingrid

Date of Deposit:

2025-05-28

Holdings Information:

https://doi.org/10.18710/XAEWC5

Study Scope

Keywords:

Engineering, Porous Disc Wake, Turbulence Interaction, Small-scale Intermittency, Wake Interaction, Hot-Wire, Wind Tunnel

Abstract:

These are the streamwise velocity time series measured in the wakes of two sets of porous discs in side-by-side setting as used in the manuscript ``Wake merging and turbulence transition downstream of side-by-side porous discs´´ which is accepted by Journal of Fluid Mechanics. Data was obtained by means of hot-wire anemometry in the Large Scale Wind Tunnel at the Norwegian University of Science and Technology in near-laminar inflow (background turbulence intensity of approximately 0.3%) at an inflow velocity of 10m/s (diameter-based Reynolds number 125000). Two types of porous discs with diameters D = 0.2m, one with uniform blockage and one with radially changing blockage, were used. Three spacings, namely 1.5D, 2D and 3D, were investigated. Span-wise profiles were measured at 8D and 30D downstream for each case, and a streamwise profile along the centerline between the discs was additionally obtained. In addition, measurements downstream of both disc types (singe disc setting) are provided as comparison. The scope of these experiments was to study the merging mechanisms of the turbulence when the two wakes are meeting.

Methodology and Processing

Sources Statement

Data Access

Notes:

<a href="http://creativecommons.org/publicdomain/zero/1.0">CC0 1.0</a>

Other Study Description Materials

Related Materials

The CAD drawing of the N disc was made available at DataverseNO at https://doi.org/10.18710/FFELKX by Vinnes, Magnus Kyrkjebø, Gambuzza, Stefano, Ganapathisubramani, Bharathram & Hearst, R. Jason 2022b ”nd.stp” - replication data for: The far wake of porous disks and a model wind turbine: Similarities and differences assessed by hot wire anemometry. DataverseNO V1

Related Publications

Citation

Title:

Berstad, F.O.J., Hearst, R.J. and Neunaber, I., 2025. Wake merging and turbulence transition downstream of side-by-side porous discs. Journal of Fluid Mechanics, 1015, A39. https://doi.org/10.1017/jfm.2025.10314

Identification Number:

10.1017/jfm.2025.10314

Bibliographic Citation:

Berstad, F.O.J., Hearst, R.J. and Neunaber, I., 2025. Wake merging and turbulence transition downstream of side-by-side porous discs. Journal of Fluid Mechanics, 1015, A39. https://doi.org/10.1017/jfm.2025.10314

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NN_Delta_1p5D_x_30D.Rdata

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NN_Delta_2D_x_30D.Rdata

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NN_Delta_2D_x_8D.Rdata

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NN_Delta_3D_CL.Rdata

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NN_Delta_3D_x_30D.Rdata

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NN_Delta_3D_x_8D.Rdata

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