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Articles 1 - 6 of 6
Full-Text Articles in Physical Sciences and Mathematics
Theoretical Thermodynamic Properties Of Low Temperature Fluids, Zul Azhar Zahid Jamal
Theoretical Thermodynamic Properties Of Low Temperature Fluids, Zul Azhar Zahid Jamal
Masters Theses
The thermodynamic functions for low temperature fluids are computed using parametric integral equations and perturbation theory. Parametric integral equation N is applied to a low temperature Lennard-Jones gas. It is found that there is no significant improvement over the better known parametric integral equation C. The two parameter integral equation T is applied to a low temperature square-well potential and is found to be unsatisfactory at reduced temperatures of T*= 1.4 and 1.6, but quite accurate at T* = 2.2. The equation T results for T* = 2.2 are used as the reference system in perturbation theory computations. Tables of …
Generalized Linear Inversion Using Tau-P Forward Modeling, Stephen Dade Walker
Generalized Linear Inversion Using Tau-P Forward Modeling, Stephen Dade Walker
Graduate Theses
The Generalized Linear Inversion (GLI) method is used in conjunction with a tau-p forward model to successfully perform inversions of test and real-data examples. All data examples used are one-dimensional velocity profiles that represent several different cases. The stability of the technique is demonstrated in all the test-data sets. The use of simple models and wel1-control 1ed test data results in a minimum of iterations of the inversion process. Different levels of perturbation of the model and test-data examples are used to reveal insight into the robust nature of the inversion.
A Study Of Flow Separation In Transonic Flow Using Inviscid And Viscous Cfd Schemes, James Andrew Rhodes
A Study Of Flow Separation In Transonic Flow Using Inviscid And Viscous Cfd Schemes, James Andrew Rhodes
Mechanical & Aerospace Engineering Theses & Dissertations
A comparison of flow separation in transonic flows is made using various computational schemes which solve the Euler and the Navier-Stokes equations of fluid mechanics. The flows examined are computed using several simple two-dimensional configurations including a backward facing step and a bump in a channel. Comparison of the results obtained using shock fitting and flux vector splitting methods are presented and the results obtained using the Euler codes are compared to results on the same configurations using a code which solves the Navier-Stokes equations.
The Effect Of Thermal History On Modes Of Formation Of Borate Glasses Containing Titanium, Shahinaz Abd El Rahman Imam
The Effect Of Thermal History On Modes Of Formation Of Borate Glasses Containing Titanium, Shahinaz Abd El Rahman Imam
Archived Theses and Dissertations
No abstract provided.
A Numerical Study Of Three-Dimensional Vortex Breakdown, Robert Edward Spall
A Numerical Study Of Three-Dimensional Vortex Breakdown, Robert Edward Spall
Mechanical & Aerospace Engineering Theses & Dissertations
A numerical simulation of vortex breakdown using the time-dependent Navier-Stokes equations was performed. Unlike previous studies, the numerical algorithm, formulated in terms of the velocity and vorticity, was not restricted to axisymmetric flows. Prototype vortices were parameterized in terms of their Reynolds number and Rossby number. Two cases were studied extensively. In one case, a vortex was imbedded in a uniform free stream. In the other case, the axial velocity of the free stream was decelerated in the streamwise direction. For both cases breakdown occurred when the Rossby number was below a critical value. Vortex lines, particle traces and velocity …
Interaction Of Long Waves And Nearshore Barred Topography--A Mechanism Of Bar Migration, Chang-Shik Kim
Interaction Of Long Waves And Nearshore Barred Topography--A Mechanism Of Bar Migration, Chang-Shik Kim
Dissertations, Theses, and Masters Projects
It has been widely observed in nature that longshore bar topography changes profile in the onshore-offshore direction. It is common for some bars to migrate onshore during post-storm phases and offshore during storms. Although the behavior of submarine bars has been widely reported, its mechanisms and forcings are far less clear. to determine the mechanism for bar migration or for the persistence of bar systems, a numerical model is developed, which accounts for the mass transport velocities in the bottom boundary layer induced by a family of combined long waves at surf-beat frequencies and wind waves. The present approach simulates …