Atle Jensen

• Rabault, Jean; Sutherland, Graig J.; Jensen, Atle; Christensen, Kai Håkon & Marchenko, Aleksey (2019). Experiments on wave propagation in grease ice: combined wave gauges and particle image velocimetry measurements. Journal of Fluid Mechanics.  ISSN 0022-1120.
• Vollestad, Petter; Ayati, Anis Awal; Angheluta, Luiza; Lacasce, Joseph Henry & Jensen, Atle (2019). Experimental investigation of airflow above waves in a horizontal pipe. International Journal of Multiphase Flow.  ISSN 0301-9322.  110, s 37- 49 . doi: 10.1016/j.ijmultiphaseflow.2018.08.008
• Ayati, Anis Awal; Vollestad, Petter & Jensen, Atle (2018). Detailed measurements of interfacial dynamics in air-water pipe flow. Procedia IUTAM.  ISSN 2210-9838.  26, s 59- 69 . doi: 10.1016/j.piutam.2018.03.006 Fulltekst i vitenarkiv.
• Dong, Tao; Shi, Zhongyuan & Jensen, Atle (2018). Bi-objective optimization of axial profile of pin fin with uniform base heat flux. Applied Thermal Engineering.  ISSN 1359-4311.  128, s 830- 836 . doi: 10.1016/j.applthermaleng.2017.09.037 Vis sammendrag

  Cone shaped pin fin with curved profile and uniform base heat flux was investigated. The result from simultaneous optimization in regard of fin efficiency and total volume is presented. The profile is represented by the Non-Uniform Rational B-Spline (NURBS) for an additional degree of freedom to morph during the optimization process. An overall dominance was obtained from the present work, as compared to the classic concave parabolic profile, the practical constraint in fabrication taken into consideration. The profiles corresponding to the acquired Pareto solution sets tend to comply with the constructal law of design, in which freestream of heat flow is expected.

• Jensen, Atle (2018). Solitary wave impact on a vertical wall. European journal of mechanics. B, Fluids.  ISSN 0997-7546.  73, s 69- 74 . doi: 10.1016/j.euromechflu.2018.05.004
• Kolaas, Jostein; Riise, Bjørn; Sveen, Kristian & Jensen, Atle (2018). Bichromatic synthetic schlieren applied to surface wave measurements. Experiments in Fluids.  ISSN 0723-4864.  59(8) . doi: 10.1007/s00348-018-2580-6 Fulltekst i vitenarkiv.
• Mossige, Endre Joachim; Jensen, Atle & Mielnik, Michal Marek (2018). Separation and Concentration without Clogging Using a High-Throughput Tunable Filter. Physical Review Applied.  ISSN 2331-7019.  9(5) . doi: 10.1103/PhysRevApplied.9.054007 Fulltekst i vitenarkiv. Vis sammendrag

  We present a detailed experimental study of a hydrodynamic filtration microchip and show how chip performance can be tuned and clogging avoided by adjusting the flow rates. We demonstrate concentration and separation of microspheres at throughputs as high as 29  ml/min and with 96% pureness. Results of streakline visualizations show that the thickness of a tunable filtration layer dictates the cutoff size and that two different concentration mechanisms exist. Particles larger than pores are concentrated by low-velocity rolling over the filtration pillars, while particles smaller than pores are concentrated by lateral drift across the filtration layer. Results of microscopic particle image velocimetry and particle-tracking velocimetry show that the degree of lateral migration can be quantified by the slip velocity between the particle and the surrounding fluid. Finally, by utilizing differences in inertia and separation mode, we demonstrate size-based separation of particles in a mixture

• Rabault, Jean; Kuchta, Miroslav; Jensen, Atle; Reglade, Ulysse & Cerardi, Nicolas (2018). Artificial Neural Networks trained through Deep Reinforcement Learning discover control strategies for active flow control. arXiv.org.  ISSN 2331-8422.

Se alle arbeider i Cristin

• Rabault, Jean; Jensen, Atle; Sutherland, Graig & Christensen, Kai Håkon (2018). An investigation into the interaction between waves and ice.
• Rabault, Jean; Kolaas, Jostein & Jensen, Atle (2018). Using modern Artificial Neural Networks for performing end-to-end Particle Image Velocimetry.

Se alle arbeider i Cristin