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  2. Breakthrough Laminar Aircraft Demonstrator in Europe

    en.wikipedia.org/wiki/Breakthrough_Laminar...

    The left laminar flow wing section. Natural laminar flow is opposed to hybrid laminar flow artificially induced through hardware. It is difficult to industrialise a wing smooth enough to sustain the laminar flow in operation, due to having very low design and manufacturing tolerances, leading-edge retractable slats, and fasteners, that is aerodynamically robust enough, and can withstand ...

  3. Clean Sky - Wikipedia

    en.wikipedia.org/wiki/Clean_Sky

    The Breakthrough Laminar Aircraft Demonstrator in Europe (BLADE) is an Airbus project within the framework to flight-test experimental laminar-flow wing sections on an A340 from September 2017. [4] Other examples of hardware that have been developed with the support of Clean Sky include:

  4. Laminar flow - Wikipedia

    en.wikipedia.org/wiki/Laminar_flow

    A laminar flow reactor (LFR) is a reactor that uses laminar flow to study chemical reactions and process mechanisms. A laminar flow design for animal husbandry of rats for disease management was developed by Beall et al. 1971 and became a standard around the world [9] including in the then-Eastern Bloc. [10]

  5. Laminar flow reactor - Wikipedia

    en.wikipedia.org/wiki/Laminar_flow_reactor

    Compared to turbulent flow, laminar flow tends to have a lower velocity and is generally at a lower Reynolds number. Turbulent flow, on the other hand, is irregular and travels at a higher speed. Therefore the flow velocity of a turbulent flow on one cross section is often assumed to be constant, or "flat". The "non-flat" flow velocity of ...

  6. Airbus A350 - Wikipedia

    en.wikipedia.org/wiki/Airbus_A350

    By April 2019, Airbus was testing a hybrid laminar flow control (HLFC) on the leading edge of an A350 prototype vertical stabiliser, with passive suction similar to the boundary layer control on the Boeing 787-9 tail, but unlike the natural laminar flow BLADE, within the same EU Clean Sky programme. [129]

  7. Transition modeling - Wikipedia

    en.wikipedia.org/wiki/Transition_modeling

    Transition modeling is the use of a model to predict the change from laminar and turbulent flows in fluids and their respective effects on the overall solution. The complexity and lack of understanding of the underlining physics of the problems makes simulating the interaction between laminar and turbulent flow to be difficult and very case specific.

  8. Gamma-Re Transition Model - Wikipedia

    en.wikipedia.org/wiki/Gamma-Re_Transition_Model

    Gamma-Re (γ-Re) transition model is a two equation model used in Computational Fluid Dynamics (CFD) to modify turbulent transport equations to simulate laminar, laminar-to-turbulent and turbulence states in a fluid flow. The Gamma-Re model does not intend to model the physics of the problem but attempts to fit a wide range of experiments and ...

  9. Flow distribution in manifolds - Wikipedia

    en.wikipedia.org/wiki/Flow_distribution_in_manifolds

    [4] [5] [6] A generalized model of the flow distribution in channel networks of planar fuel cells. [6] Similar to Ohm's law, the pressure drop is assumed to be proportional to the flow rates. The relationship of pressure drop, flow rate and flow resistance is described as Q 2 = ∆P/R. f = 64/Re for laminar flow where Re is the Reynolds number.