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 “"temperature equation"”.
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Numerical simulation of forward combustion in a radial system
… changes considered. The mathematical form of the temperature equation requires that numerical solutions be obtained with a digital computer for which the numerical approximations of the partial differential equations are presented and the results discussed. The analysis is applied to field size …
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Comprehensive Theory of Heat Transfer in Heterogeneous Materials
… have attempted to refine the Fourier heat equation to model heat transfer in engineering materials. The equation cannot accurately predict temperatures in some applications, such as during transients in microscale (< 10^-12 s) situations. However, even in situations where the time duration …
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Analysis of Numerical Methods for Incompressible Multiphase Flows with Thermal Convection
… whose dynamics is governed by the Navier-Stokes equations and the temperature equation under the Boussinesq approximation. Unlike traditional schemes that rely on using the temperature and velocity as primary variables, our schemes use the momentum and internal energy. In addition, our schemes …
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Three Problems Involving Compressible Flow with Large Bulk Viscosity and Non-Convex Equations of State
… variations across the boundary layer and the temperature equation is seen to have two additional source terms at first order when the bulk viscosity is large. In the second problem, we consider the reflection of an oblique shock from a laminar flat plate boundary layer. The flow is taken to be …
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Stochastic Modelling and Optimal Control of Compartment Fires
… Epidemic models are investigated to develop equations for the growth of compartment fires by drawing analogies between the epidemic variables and the compartment fire variables. The Percolation and Contact processes are investigated for the spread of compartment fires. A mechanism for …
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Computational investigations of atmospheric pressure discharges
… solve the coupled system of plasma fluid model equations with a proper set of boundary conditions. A one- dimensional self consistent drift-diffusion fluid model is developed to investigate the characteristics of atmospheric pressure discharge in pure helium and He-N2 gases. The uniform …
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Horizontal and vertical structure of velocity, potential vorticity and energy in the Gulf Stream
… the first time in the Gulf Stream at 68°W. The temperatures, pressures, and velocities at the uppermost instrument indicate the Gulf Stream moved back and forth across the mooring site, so that the entire Stream was sampled in time; hence the data may be used to examine horizontal as well as …
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Observations of interaction between the internal wavefield and low frequency flows in the North Atlantic
… Reynolds stress (estimated using the temperature and velocity records), and the mean shear. No significant stress-shear correlations were found at the less energetic moorings, indicating that the magnitude of the eddy viscosity was under 200 cm2/sec, with the sign of the energy …
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Observations of wave-mean flow interaction in the Pacific Equatorial Undercurrent
… Undercurrent is investigated using velocity and temperature time series from the three-dimensional Equatorial Pacific Ocean Climate Study mooring array at 110°W. Tropical instability waves are an energetic band of variability typically with periods between 14 and 36 days which are thought to be …
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Efficient Multiphysics Coupling for Fast Burst Reactors in Slab Geometry
In this thesis, we discuss a coupling algorithm to model simplified fast burst reactor dynamics. Kadioglu presented a tightly coupled multiphysics algorithm of diffusion neutronics and linear. An implicit-explicit (IMEX) algorithm was used to follow the dynamical time-scale of the problem. However, …