Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 6 of 6 for “"Boundary-layer displacement thickness"”.
-
The effect of the boundary layer present in wind tunnels on the aerodynamic drag of a model truck
… deals with a system that reduces the oncoming boundary layer displacement thickness in a wind tunnel. The device is then used to examine the effect that this boundary layer has on the aerodynamic drag of a standard truck, which is classified as a bluff body with a high ground clearance and the …
-
A new direct viscous-inviscid interaction method for aerodynamics analysis
… Euler equation and the method for solving the boundary layers equation. Such approach is known as the direct viscous–inviscid interaction (DVII) method. The Euler equation is solved by use of finite volume method based on Roe‟s cell center Scheme while the Boundary layer equation is solved by …
-
Airfoil Self-Noise Prediction Using Neural Networks for Wind Turbines
… geometrical shape of the airfoil. In addition, boundary layer displacement thickness was used for some models. The parameters used for taking into account the airfoil's geometry are based on a conformal mapping method or a polynomial approximation. The output of the neural network is given by …
-
Detonationswellen in engen Spalten
… fuels Iso-octane and n-heptane as well as wall boundary layer and heat fluxes behind waves. Then Fays stream tube model for detonation propagation under effect of wall friction is enhanced and finally the velocity deficit, the pressure profiles, the wave structures and the phenomena of …
-
The relationship between surface geometry and transonic intake performance during off-design climb
… off-design climb, producing a severe shock wave--boundary-layer interaction (SBLI) that greatly increases the ingested incompressible boundary-layer displacement thickness, \(\delta_i^*\), and shape factor, \(H_i\). Simulating these conditions without validation is challenging, and poor optical …
-
Bio-Inspired Axial Fan Design, 3D Printing Fabrication and Characterization for Noise and Flow Performance Optimization
… chord length, trailing edge bluntness, and boundary layer displacement thickness. Inspired by the silent flight mechanisms of owls, bio-inspired trailing-edge serrations are then investigated as a passive control strategy for noise reduction in airfoil-based configurations relevant to axial …