Arnold Ferdinand Bertelsen

• Pedersen, Geir Kleivstul; Lindstrøm, Erika Kristina; Bertelsen, Arnold F; Jensen, Atle; Laskovski, Daniela & Sælevik, Gunnstein (2013). Runup and boundary layers on sloping beaches. Physics of Fluids. ISSN 1070-6631. 25(1). doi: 10.1063/1.4773327. Full text in Research Archive
• Johnson, George William; Bertelsen, Arnold F & Nossen, Jan (2009). A Mechanistic Model for Roll Waves for Two-Phase Pipe Flow. AIChE Journal. ISSN 0001-1541. 55(11), p. 2788–2795. doi: 10.1002/aic.11826. Full text in Research Archive
• Johnson, Georg W; Bertelsen, Arnold F & Nossen, J (2009). An experimental investigation of roll waves in high pressure two-phase inclined pipe flows. International Journal of Multiphase Flow. ISSN 0301-9322. 35(10), p. 924–932. doi: 10.1016/j.ijmultiphaseflow.2009.06.003. Full text in Research Archive

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• Lindstrøm, Erika Kristina; Pedersen, Geir Kleivstul; Jensen, Atle & Bertelsen, Arnold F (2012). Evolution of boundary layers on beaches. Full text in Research Archive
• Lindstrøm, Erika Kristina; Pedersen, Geir Kleivstul; Jensen, Atle & Bertelsen, Arnold F (2012). Evolution of boundary layers on beaches. Full text in Research Archive
• Bertelsen, Arnold F (2000). Noen eksempler på ikke-lineare effekter i oscillatoriske strømningsfelter. Full text in Research Archive
• Bertelsen, Arnold F (2000). A new solution for the inner region in turbulent wall flows. Full text in Research Archive
• Khabeev, Nail S.; Bertelsen, Arnold F & Ganiev, O. R. (2000). Shock Waves in Liquids with Bubbles Containing Evaporating Drops. Full text in Research Archive
• Bertelsen, Arnold F (2000). Turbulent kanalstrøm: Nye resultater med gamle metoder. Full text in Research Archive
• Bertelsen, Arnold F (2000). Particle transport in turbulent pipe flow. Full text in Research Archive
• Khabeev, N.S.; Bertelsen, Arnold Ferdinand & Ganiev, O.R. (1998). Mathematical Modelling of Vapor Explosions. Universitetet i Oslo. Full text in Research Archive
• Bertelsen, Arnold Ferdinand (1987). FLOW IN PIPES OF VARIABLE CROSS SECTIONS. Universitetet i Oslo. ISSN 9788255306269. Full text in Research Archive Show summary

  Viscous incompressible flow in pipes of variable cross sections is considered with a view to physiological conditions. Steady and oscillatory inlet flow conditions are discussed. Asymptotic solutions of the basic equations, with respect to inherent parameters, are given.· Weakly non-linear .effects are included. The predicted flow fields are generally in accordance with observations.

• Bertelsen, Arnold Ferdinand; Walloe, Lars & Kvalheim, Arve (1986). BLOOD FLOW SIMULATIONS IN A CAST OF THE AORTHIC BIFURCATION. Universitetet i Oslo. ISSN 9788255306214. Full text in Research Archive
• Bertelsen, Arnold Ferdinand (1982). OSCILLATORY VISCOUS FLOW IN CURVED PIPES. Universitetet i Oslo. Full text in Research Archive
• Bertelsen, Arnold Ferdinand & Thoresen, Leif K. (1981). An experimental investigation of oscillatory viscous flow in pipe bends. Universitetet i Oslo. Full text in Research Archive Show summary

  Oscillatory flow in U-shaped pipes have been investigated experimentally. The velocity field is mapped by observing the motion of tracer particles either photographically or by Laser Doppler Anemometry. The most important result seems to be the observation of regions with strong secondary streaming at the inlet of the curved section, which, to the best of our knowledge, have not been reported before,

• Bertelsen, Arnold Ferdinand (1980). A note on the solution of the two-dimensional slip-boundary layer problem. Universitetet i Oslo. Full text in Research Archive Show summary

  The general homogeneous solution of the differential equation associated with an arbitrary term of the Blasius series expansion of the stream function, is given. This result is used to establish the solution of higher order terms of the Blasius series, than earlier published. A numerical .example is also given.

• Bertelsen, Arnold Ferdinand (1978). THE VELOCITY FIELD INDUCED BY OSCILLATING CYLINDERS IN A VISCOUS INCOMPRESSIBLE FLUID. Universitetet i Oslo. ISSN 9788255303398. Full text in Research Archive

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