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.
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Showing 1 to 10 of 10 for “"Momentum Integral"”.
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A study of two- and three- dimensional turbulent boundary layer data sets using momentum integral techniques
… of these data sets with their appropriate momentum integral equations. Several turbulent boundary layer experiments were reviewed to determined which of these provided adequate data so that they could be examined using this method. The selected data sets were used to numerically integrate …
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An integral method for solving the boundary-layer equations for a second-order viscoelastic liquid
… degree to describe the velocity function, the momentum integral equation for a second-order fluid is used to develop differential equations describing the boundary-layer for second-order flow past external surfaces. Using the momentum integral equation and appropriate boundary conditions, …
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Influence of Attachment Line Flow on Form Drag
… Callisto, which is Airbus’s three-dimensional momentum integral boundary layer code coupled with Green’s lag-entrainment method has shown that there might be a small but worthwhile form drag reduction through attachment line control, up to about 0:4
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Two dimensional diffusers with plenum and tailpipe discharge.
… A theoretical prediction technique based on the momentum integral equation and Head!s entrainment function is developed and the prediction method tested against the experimental results. This prediction technique was shown to accurately predict the boundary layer and performance parameters for …
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Dynamic response of the supercritical C0₂ Brayton recompression cycle to various system transients
… 90, TSCYCO uses a lumped parameter model and a momentum integral model approach. The code uses a semi-implicit solution process and implements Gaussian elimination to solve the system of equations. Transient behavior of the printed circuit heat exchangers is determined via the previously …
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Experimental and analytical investigation of multiple jets in a cross-flow
… were also performed. An analytical study using a momentum-integral approach was also carried out in order to predict the gross jet properties such as the jet trajectories, the jet growth, and the mean jet velocity and the mean jet temperature. The jets showed considerable influence on each other …
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Unsteadiness in shock-wave/boundary layer interactions
… from an exact form of the momentum integral equation and guided by data<br/>from large-eddy simulations, a stochastic ordinary differential equation for the reflectedshock<br/>foot low-frequency motions is derived. This model is applied to a wide range<br/>of input …
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Aerodynamic Interactions in Vortex Tube Separator Arrays
… is increased in array flows due to high angular momentum contributions from separators that are radially distant from the duct center. A preliminary momentum integral model is constructed to predict the onset of recirculation in VTS flows. Analysis is then extended to the unsteady flowfield, …
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A three-dimensional turbulent boundary layer upstream and around a junction vortex flow
… spanwise nonuniformities and a two-dimensional momentum integral calculation along the tunnel center plane; the development of a calibration technique to determine individual sensor yaw characteristics in more complex probe geometries; and a generalized response analysis for a sensor with …
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Integral Boundary Layer Methods in Python
<p>This thesis presents a modern approach to two Integral Boundary Layer methods implemented in the Python programming language. This work is based on two 2D boundary layer methods: Thwaites' method for laminar boundary layer flows and Head's method for turbulent boundary layer flows. Several novel …