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 20 of 27 for “"Experimental uncertainty"”.
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Evaluation of propulsor aerodynamic performance for powered aircraft wind tunnel experiments
… power measurements to mechanical ow power with experimental uncertainty of roughly 1.6%.
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Experimental evaluation of heat transfer characteristics of silica nanofluid
… were investigated for silica nanofluid. An experimental loop was built to obtain heat transfer coefficients for single-phase nanofluids in a circular conduit in laminar flow regime. Thermal conductivity and viscosity measurements were conducted on the silica nanofluid to determine the …
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Rotordynamic analysis of circumferentially grooved annular pump seals with turbulent flow and inlet swirl
… The model shows good qualitative agreement with experimental test results for seal leakage and rotordynamic coefficients. Actual quantitative agreement is unresolved given the high level of experimental uncertainty in the test results.
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Analysis of a Flat-Plate, Liquid-Desiccant, Dehumidifier and Regenerator
… is asymptotic with mass flow rate. An experimental rig with a single channel prototype was also built and tests were run for 18 different cases, with varying water mass flow rate, desiccant mass flow rate and flow configuration. The results show trends similar to those observed in the …
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Using Heterogeneous Information Sources for Understanding and Predicting Biological Effects of Compounds
… classification threshold by taking into account experimental uncertainty”, a novel algorithm was evaluated and benchmarked. A limiting factor in target prediction for MoA understanding is the experimental variability in bioactivity data, which are used to train target prediction models. By …
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Turbulence and transport studies with phase contrast imaging in the Alcator C-Mod tokamak and comparisons with gyrokinetic simulations
… the predicted fluctuation is compared against experimental measurements through a synthetic PCI diagnostic method. Both L-Mode and H-Mode plasmas are examined through these numerical and experimental methods. The L-Mode experiments were carried out over the range of densities covering the …
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Aerodynamics of a Transonic Turbine Vane with a 3D Contoured Endwall, Upstream Purge Flow, and a Backward-Facing Step
… making an improvement distinguishable beyond experimental uncertainty. Flow visualization found that the passage vortex penetrated further in the spanwise direction into the passage for the contoured endwall (compared to the flat endwall), and stayed closer to the endwall with a blowing ratio …
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Experimental and Analytical Investigation of the Transient Thermal Response of Air Cooled Data Centers
… This includes the development of practical experimental procedures for the thermal characterization of servers solely based on air temperature measurements and the transient response of the computer room air handlers. The knowledge of thermal characteristics paves the way for the …
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Analysis of flat-plate solar collector durability test data
… that may have occurred was overshadowed by experimental uncertainty. The test results did not depend on test series, geographic location or season of the year. Referring the test results to a common set of weather conditions did not reduce the scatter in the results.
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A study of two- and three- dimensional turbulent boundary layer data sets using momentum integral techniques
… of the order of magnitude of experimental uncertainty, in the form of collateral or skewed convergence/divergence of the flow at a plane of symmetry, was shown to have large adverse effects on the momentum integral validation. Investigations of arbitrary.three-dimensional flows …
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Investigation of the thermodynamics of iron phosphate melts and stability of iron phosphate glasses: effects of composition and iron redox ratio
… redox ratios of glasses prepared here within experimental uncertainty. The bond hydration model yields similar spread in predicted versus experimental dissolution rates as previously established models based on free energies of hydration, yet is based solely on composition with no requisite …
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DEVELOPMENT AND IMPROVEMENTS OF THE CONTROLLED ATMOSPHERE PYROLYSIS APPARATUS
… profiles and gas temperatures are within the experimental uncertainty of both apparatuses. Chamber temperatures were reduced, providing for more clear boundary conditions and simplified modeling. Experimental results of this improved version of CAPA were compared against previous experiments …
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Benchmarking of the RAPID Eigenvalue Algorithm using the ICSBEP Handbook
… calculated by RAPID and Serpent agree with the experimental data within the given experimental uncertainty. Further, the detailed 3-D pin-wise fission density distribution obtained by RAPID agrees with the reference prediction by Serpent which itself has converged to less than 1% weighted …
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Thermal analysis of power hybrid microelectronic packages
… using infrared thermal imaging technique. These experimental results were compared to results predicted by the thermal model. In general, the model underpredicts or overpredicts the experimental temperature rise by 0-2 ·C and the agreement is within the experimental uncertainty of ±2°C.
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Electronic and lattice vibrational properties of thorium hydrides
… of deuterium for hydrogen was found within experimental uncertainty in either y or eD. The specific heats of Th4H15 and Th4D15 in the superconducting states below 8 K have also been measured. The results indicate that these compounds are bulk superconductors whose properties do not deviate …
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On the Local Heat Transfer Behavior of Supercritical Carbon Dioxide
… SC fluids have proven difficult to study both experimentally and numerically due to dramatically changing thermodynamic and transport properties near the critical point. It is clear from the existing literature that the heat transfer processes within a SC flow vary from those of a subcritical …
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Experimental and Modeling Investigations of Biomass Particle Combustion
… of entrained-flow biomass combustion processes. Experimental and theoretical investigations indicate how particle shape and size influence biomass combustion rates. Experimental samples include flake-like, cylinder-like, and equant (nearly spherical) shapes with similar particle masses and …
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The response of a structural target to oblique fragment and blast loading
… on a Domex 700 target plate and to investigate experimental uncertainty. Blast experiments were carried out using a cylindrical charge with an embedded ball bearing representing a simplified IED to investigate the response of a target plate experiencing oblique detonation by varying the angle of …
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An Application of Anti-Optimization in the Process of Validating Aerodynamic Codes
… search for regions where the computational and experimental results disagree. Maximizing such disagreements can be a useful tool in uncovering errors and/or weaknesses in both analyses and experiments. The codes chosen for this investigation were an airfoil code and a lifting line code used …
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Fluid Dynamics and Surface Pressure Fluctuations of Two-Dimensional Turbulent Boundary Layers Over Densely Distributed Surface Roughness
… correlate well with λ or the modified Λ for the experimental data. However, it was found that the friction coefficient for the current dense roughness cases is a constant 0.004, within the experimental uncertainty. Traditional inner wall scalings, outer wall scalings, and roughness scalings were …
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