111 citations · 190 across the 3 of their papers we have counts for
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physics.flu-dyn2017★ 111 cited
Destabilizing turbulence in pipe flow
J. Kühnen, B. Song, D. Scarselli +5
Turbulence is the major cause of friction losses in transport processes and it is responsible for a drastic drag increase in flows over bounding surfaces. While much effort is inve…
physics.flu-dyn2015★ 47 cited
Subcritical versus supercritical transition to turbulence in curved pipes
J. Kühnen, P. Braunshier, M. Schwegel +2
Transition to turbulence in straight pipes occurs in spite of the linear stability of the laminar Hagen--Poiseuille flow if the amplitude of flow perturbations as well as the Reyno…
physics.flu-dyn2015★ 32 cited
Experimental investigation of transitional flow in a toroidal pipe
J. Kühnen, M. Holzner, B. Hof +1
The flow instability and further transition to turbulence in a toroidal pipe (torus) with curvature (tube-to-coiling diameter) 0.049 is investigated experimentally. The flow inside…