Takfarinas Medjnoun

Takfarinas Medjnoun
University of Southampton · Aerodynamics and Flight Mechanics Research Group

PhD

About

6
Publications
1,898
Reads
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128
Citations
Citations since 2017
6 Research Items
128 Citations
2017201820192020202120222023010203040
2017201820192020202120222023010203040
2017201820192020202120222023010203040
2017201820192020202120222023010203040
Introduction
Aerodynamicist with a background in aerospace and mechanical engineering and expertise in experimental fluid mechanics, measurement, and diagnostic techniques for aerodynamics, aeroacoustics, hydraulics, and turbomachinery applications.
Additional affiliations
May 2019 - present
University of Southampton
Position
  • Fellow
Description
  • Research in experimental aerodynamics
Education
May 2015 - April 2019
University of Southampton
Field of study
  • Turbulence

Publications

Publications (6)
Article
Full-text available
In this experimental study, multiscale rough surfaces with regular (cuboid) elements are used to examine the effects of roughness-scale hierarchy on turbulent boundary layers. Three iterations have been used with a first iteration of large-scale cuboids onto which subsequent smaller cuboids are uniformly added, with their size decreasing with a pow...
Thesis
Full-text available
Wall-bounded flows developing over spanwise heterogeneous surfaces exhibit timeaveraged streamwise vortices when the spanwise characteristic length scale of the surface (S) is comparable to the dominant length scale of flow (δ) (Barros and Christensen, 2014). In this work, we experimentally examine a turbulent boundary layer developing over such surf...
Article
Full-text available
The effect of spanwise heterogeneous surface geometry on the turbulent boundary layer secondary flows and on skin friction is investigated experimentally. The surfaces consist of smooth streamwise-aligned ridges of different shapes and widths with spanwise wavelengths comparable to the boundary layer thickness ($S/\delta \approx \mathcal{O}(1)$). C...
Article
Full-text available
An experimental investigation of a turbulent boundary layer flow over a heterogeneous surface is carried out to examine the mean flow and turbulence characteristics, and to document the variation of skin-friction that might aect the applicability of traditional scaling and similarity laws. The heterogeneity is imposed along the spanwise direction a...
Article
The effect of the Strouhal number on periodic forcing of the flow over a backward-facing step (height, $H$) is investigated experimentally. Forcing is applied by a synthetic jet at the edge of the step at Strouhal numbers ranging from $0.21<St_H<1.98$ ($St_H = f H/U_\infty$) at a Reynolds number of $Re_H = HU_\infty/\nu = 41000$. In the literature,...

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