SnorriGudmundssonBScAE, MScAE, FAA DER(ret.), inGeneral Aviation Aircraft Design, 2014 Boundary Layer Transition A body moving in a fluid will generally be exposed to three distinct types of fluid flow; one is characterized by the presence of alaminar boundary layer, another by aturbulent boun...
The invention relates to a method (1, 1) for monitoring the operation of a boundary layer control system equipped with an aircraft profile bodyIt is configured to actively control or control at least one boundary layer parameter (() 1) or a part of the formed form () 1. The surface ...
region of the boundary layer. Choi and Moin9showed that the number of cells needed to resolve the inner layer (defined as, whereyis the wall-normal direction) scales to, which is a nearly quadratic dependence on the Reynolds number. The cost of a DNS calculation is even more prohibitive a...
Jardine, RLawrence, S., and R. Jardine (2000), Use of boundary layer profiler data for aviation forecasting, paper presented at 5th International Symposium on Tropospheric Profiling, Natl. Cent. for Atmos. Res., Adelaide, S. Aust., Australia, Dec....
As one of the main contributors to environmental change and fossil energy consumption, the aviation sector is gradually starting to focus on sustainable development. Among many sustainable solutions, BLI (boundary-layer ingestion) is one of the technologies with great potential. The idea of BLI has...
Understanding atmospheric processes within this layer is of interest from both a scientific and operational point of view. Convection is believed [1] to be a major transportation process uplifting dust from the surface into the upper atmosphere. In this model, dust is lifted by wind shear at ...
Oscillatory blowing is an effective tool for increasing the momentum of the flow inside the boundary layer—which can be used, for example, for flow separation control. Periodic blowing through a series of narrow slots enhances the shear-layer mixing and transfer of high-momentum fluid from the ...
aircraft propulsor;shape optimization;boundary layer ingesting 1. Introduction The pylon-mounted under-wing engine configuration has long remained the most popular arrangement in civil aviation. However, given the need for a more fuel-efficient generation of aircraft, the research community has recently...
In Proceedings of the AIAA Aviation 2019 Forum, Dallas, TX, USA, 17–21 June 2019. [Google Scholar] Funderburk, M.L.; Narayanaswamy, V. Spectral Signal Quality of Fast Pressure Sensitive Paint Measurements in Turbulent Shock-Wave/Boundary Layer Interactions. Exp. Fluids 2019, 60, 1–20. ...
Since U is assumed to be constant, 𝑈″=0U″=0, and so, the wind curvature term does not appear in the definition of l. The two-layer atmosphere considered by TAM13 is adopted here, where: 𝑙={𝑙2>0𝑙1=0ifif𝑧>𝐻0<𝑧<𝐻l=l2>0ifz>Hl1=0if0<z<H (2) with...