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 20 of 77 for “"boundary layer flow"”.
-
Radiative Laminar Boundary Layer Flow
Made available in DSpace on 2014-12-10T23:36:42Z (GMT). No. of bitstreams: 1 7114699.pdf: 2151244 bytes, checksum: bdfb418c68ea4906fab91099a73491ac (MD5) Previous issue date: 1970
-
Turbulent Boundary Layer Flow Over a Bump
Turbulent boundary layers (TBLs) are critical to the performance and efficiency of many engineering systems, especially in aerospace and turbomachinery applications. While two-dimensional (2D) TBLs under zero-pressure-gradient (ZPG) conditions are well understood, real-world boundary layers often …
-
Sensitivity analysis on steady bionanofluid boundary layer flow
… reliability. In this study, steady bionanofluid boundary layer flow near the stagnation point of a permeable shrinking surface with velocity and thermal slips conditions, moving surface with convective boundary conditions, static wedge surface and MHD permeable surface associated with multiple …
-
Turbulent boundary layer flow over two-dimensional bottom roughness elements
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1997.
-
Modelling of Wall Pressure Fluctuations Induced by Turbulent Boundary Layer Flow
… of wall pressure fluctuations in the turbulent boundary layer. From the analysis of current semi-empirical models and a large survey of experimental data, it was found that the models proposed by Goody and Smol'yakov have the lowest mean squared error when predicting the power spectral density …
-
High Reynolds Number Turbulent Boundary Layer Flow over Small Forward Facing Steps
… made on three forward steps with step height to boundary layer ratio of approximately 3.8%, 15% and 60% and Reynolds number based on step height ranging from 6640 to 213,000. The measurements included mean wall pressure, single and 2 point wall pressure fluctuations, single and 2 point velocity …
-
Advances in the visualization and analysis of boundary layer flow in swimming fish
… both internally and externally, suggest the boundary layer as an important subject of investigation, however, the complexities of biological systems present significant and unique challenges to analysis by experimental fluid dynamics. In this investigation, a system for automatically …
-
Structure and Turbulence of the Three-Dimensional Boundary Layer Flow over a Hill
Three-dimensional (3D) turbulent boundary layers (TBLs) are ubiquitous in most engineering applications, but most turbulence models used to simulate these flows are built on two-dimensional turbulence theory, limiting the accuracy of simulation results. To improve the accuracy of turbulence …
-
Advances in the visualization and analysis of boundary layer flow in swimming fish
… both internally and externally, suggest the boundary layer as an important subject of investigation, however, the complexities of biological systems present significant and unique challenges to analysis by experimental fluid dynamics. In this investigation, a system for automatically …
-
Second approximations to the solution of laminar boundary layer flow along a flat plate
Thesis: M.S., Massachusetts Institute of Technology, Department of Aeronautical Engineering, 1947
-
Simple models for turbulent wave-current bottom boundary layer flow : theoretical formulations and applications
… simple models for turbulent wave-current bottom boundary layer flow. Eddy viscosity formulations are presented for each model in order to analytically solve the governing equations for the bottom boundary layer. Approximations and procedures for obtaining practical solutions of the current …
-
Direct Assessment and Investigation of Nonlinear and Nonlocal Turbulent Constitutive Relations in Three-Dimensional Boundary Layer Flow
Three-dimensional (3D) turbulent boundary layers (TBLs) play a crucial role in determining the aerodynamic properties of most aero-mechanical devices. However, accurately predicting these flows remains a challenge due to the complex nonlinear and nonlocal physics involved, which makes it difficult …
-
Computational analysis of magnetohydrodynamics boundary layer flow of nanofluid over a stretching sheet in the presence of heat generation or absorption and chemical reaction
… is ratio of buoyancy to viscous forces in the boundary layer it causes an increase in the buoyancy forces relative to the viscous forces which influence the velocity in the boundary layer region. An increase in the heat source/sink parameter (S) results in the increase in velocity and …
-
Active Flow Control of Subsonic Flow in an Adverse Pressure Gradient Using Synthetic Jets and Passive Micro Flow Control Devices
… shown the advantages of active and/or passive flow control devices for boundary layer flow modification. Many current and future proposed air vehicles have very short or offset diffusers in order to save vehicle weight and create more optimal vehicle/engine integration. Such short coupled …
-
The effect of boundary layer blowing in the corner region of a linear compressor cascade wind tunnel
A fundamental investigation of the flow in the endwall corner region of a linear compressor cascade wind tunnel and the effect of boundary layer blowing in this region was conducted using blade surface pressure tap measurements and five - hole prism probe measurements taken downstream of the …
-
Linear and weakly nonlinear boundary layer acoustics in a lined duct
In this thesis I look at the effect of boundary layer flow on the acoustics of an acoustic lining. Acoustic linings are used in aircraft engine ducts to reduce the sound they produce. They typically consist of an array of Helmholtz resonators that are characterised by their impedance - a linear …
-
ΜΕΛΕΤΗ ΠΕΡΙΟΔΙΚΟΥ ΟΡΙΑΚΟΥ ΣΤΡΩΜΑΤΟΣ
… REFERS TO THE STUDY OF SOME FORMS OF OSCILLATORY BOUNDARY LAYER FLOW. THIS FLOW IS DUE EITHER TO THE OSCILLATIONS OF A BODY IMMERSED INTO AN UNBOUNDED VISCOUS FLUID (EXTERNAL FLOWS) ON TO THE OSCILLATIONS OF A VISCOUS FLUID THAT IS BOUNDED IN A REGION (INTERNAL FLOWS).
-
Novel applications of diffusion-driven flow
Diffusion-driven flow is the result of a conflict between hydrostatic equilibrium in a density stratified fluid and the no-flux boundary condition that must be obeyed on impermeable boundaries that are sloping with respect to gravity. This conflict results in a boundary layer flow, and in this …
-
Two and three-dimensional incompressible and compressible viscous fluctuations
Small unsteady disturbances of boundary-layer flow fields are often encountered in engineering applications, as for example, in the aerodynamics of a helicopter rotor or a turbine cascade or in a fluttering airfoil as well as in a variety of bioengineering problems. The present dissertation is a …
-
Numerical study of heat source/sink effects on dissipative magnetic nanofluit flow from a non-linear inclined stretching and shirinking sheet
… investigate radiative MHD mixed convection boundary layer flow of nanofluid over a nonlinear inclined stretching and shrinking sheet in the presence of heat source/sink and vicious dissipation. The governing coupled nonlinear momentum and thermal boundary layer equation are transform into a …
Page 1 of 4