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Showing 1 to 17 of 17 for “"transient heat conduction"”.
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Transient heat conduction in shock supports in cryogenic apparatus.
Thesis. 1976. M.S.--Massachusetts Institute of Technology. Dept. of Mechanical Engineering.
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Determination of Composite Domain Green's Functions for Transient Heat Conduction
Made available in DSpace on 2017-07-06T18:55:39Z (GMT). No. of bitstreams: 3 Nightingale_James_S_MS.pdf: 35659228 bytes, checksum: 4fc2272434cc6f68a6681372953b4a6f (MD5) Nightingale_James_S_MS_ABS.pdf: 403413 bytes, checksum: 5299d958c5fe36cca484cf2ac5f9f7cb (MD5) license.txt: 4813 bytes, checksum: …
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Structure Based, Two-dimensional, Anisotropic, Transient Heat Conduction model for Wood
… of precise values for the parameters used in heat and mass transfer models has been demonstrated by many research studies. Thermal conductivity values used in previous models are usually empirical and fluctuate. Theoretical analysis and estimations of wood thermal conductivities in the radial …
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Efficient Large Scale Transient Heat Conduction Analysis Using A Parallelized Boundary Element Method
… BEM, algorithm for the solution of large-scale transient heat conduction problems will be developed. This is accomplished by building on previous work by the author and including several new additions (most note-worthy is the extension to 3-D) aimed at extending the scope and improving the …
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A study of transient heat conduction and thermal noise in an Earth radiation budget radiometer
… of about six seconds. This not only results in a transient radiation signal arriving at the detector surface from the scene, but also in temperature transients in the instrument structure. The instrument “zero” is obtained during the “space look” when it views cold space at each end of the scan. …
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Group Invariance Properties of Transient Nonlinear Heat Conduction Problems
… with temperature complicates the analysis of transient heat conduction problems because the governing partial differential equations are nonlinear. The analytical situation in some cases is further complicated by a volumetric heat generation (or dissipat
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Estudo comparativo de algoritmos de integração direta, aplicados a problemas de condução de calor transiente
… in this work for linear two-dimensional transient heat conduction problems. The system of diferential equations of the problem was integrated, in space, by the use of the Finite Element Discretization Technique, using the curved isoparametric "quadrilateral" element. For time …
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Transient nonlinear heat transfer analysis using the finite element method in the context of the requirements of thermal analysis in a mine
… guide, to analyse two-dimensional; nonlinear, transient heat conduction in non-isotropic solids using the finite element method. This program is an extension of an existing program that analyses thermomechanical stress in solids which may have prescribed temperature and flux boundary …
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Heat source transfer functions and their application to low temperature radiant heating systems
Radiant heating systems have been identified by segments of the HVAC industry as technology which can potentially reduce the energy consumption of buildings. As a result of higher mean radiant temperatures within radiantly heating structures, it has been hypothesized that these systems can provide …
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Métodos de redução de base para problemas térmicos em regime transiente com condições de contorno de radiação e convecção
… been a renewed interest in reduction methods for transient heat transfer analysis. Particularly, for transient heat conduction, it has been shown that reduction methods based on Lanczos-type algorithms or Ritz methods are most effective than the usual direct approach (α-methods) or classical modal …
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Development of a quasi-dimensional diesel engine simulation for energy and availability analysis
… multi-zone combustion model and a radiation heat transfer model are developed for the study of turbocharged diesel engine performance and energy and availability balance. The quasi-dimensional multi-zone combustion model is based on the air and fuel mixing process with a temperature and …
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A study of interactions between laminar flames and walls
A basic study on the convective flame-wall heat transfer in diesel engines was performed with a fundamental experiment and simplified theoretical models. Based on the concept of flame tubes, a combustor was designed and optimized to support laminar, stable flame propagation at constant ambient …
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A tool for analyzing the evolution of non-uniformities in lithium-ion cylindrical battery cells at the module level under various operating conditions
… a finite difference method (FDM) to solve the 3D transient heat conduction equation, providing spatial temperature distribution within cells and capturing critical gradients between core and surface temperatures. The vectorization of the thermal solver reduced simulation time by half, and its …
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Verification of a Three-Dimensional Resin Film Infusion Process Simulation Model
… fiber preform, cure kinetics of the resin, and heat transfer within the preform/tool assembly. The computer model can predict the flow front location, resin pressure distribution, and thermal profiles in the modeled part. The formulation for the flow model is given using the finite …
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On the oxidation of high-temperature alloys, and its role in failure of thermal barrier coatings
… deformations that may be locally large, and (d) transient heat conduction. We numerically implement our theory in an implicit finite-element program, and calibrate the material parameters in our theory for an FeCrAlY alloy experimentally studied in the literature. We simulate the high-temperature …
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Annular Beam Shaping And Optical Trepanning
… quality than a traditional circular laser beam. Heating depth is important for drilling application. Since there are no good ways to measure the temperature inside substrate during the drilling process, an analytical model for optical trepanning has been developed by considering an axisymmetric, …
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Experimental and Theoretical Study of Hypergolic Solid Fuel Ignition and Combustion with Hydrogen Peroxide
… ignition model was developed, incorporating transient heat conduction with nonlinear surface heat generation. The model accounted for the effects of additive concentration, particle size, and initial temperature, integrating a particle packing model to evaluate surface area, thermal mass, and …