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 249 for “"impinging"”.
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Study of Steady and Pulsating Impinging Jets
… on the fluid mechanics of steady and pulsed impinging jets is presented in this thesis. An experimental facility was custom-builtin order to generate axisymmetric and incompressible impinging jets (pulsed and steady). In order to ensure that the velocity profiles at the exit were fully …
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Polymer-induced turbulence modifications in an impinging jet
… turbulence characteristics in a submersed liquid impinging-jet configuration. Turbulent impinging jets are commonly used in technological applications such as drying, scouring, cooling or heating due to an enhancement in transport characteristics in the impingement region under certain …
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Hydrodynamics of impinging liquid jets used in cleaning
Impinging liquid jets are widely used in industrial cleaning-in-place (CIP) systems to remove residual product or soil layers from the internal surfaces of process equipment such as tanks and vessels. The optimisation of these cleaning operations is often done empirically as a large number of …
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Particulate Deposition Prediction of Diluted Two-Phase Impinging Jet
… particle transport and deposition process in impinging jet flow, in light of the available experiments, can be gained using computational fluid dynamics (CFD) numerical simulations. The present thesis focuses mainly on the prediction of aerosol particle transport and deposition in impinging …
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Heat transfer to turbulent and splattering impinging liquid jets
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1991.
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Numerical Analysis of an Airfoil Response to an Impinging Gust
… The nonlinear response of a loaded airfoil to an impinging vertical gust is investigated in the parametric space of gust intensity and frequency. Computational resources, involving a Linux cluster, were set up and maintained. The code was corrected and adapted to this particular problem. Results …
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Experimental study of the hydrodynamics of an impinging liquid jet
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1989.
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Active noise control of supersonic impinging jet using pulsed microjets
… concerns an active noise control of supersonic impinging jet flow using unsteady microjet injection. Supersonic impinging jet involves several problems such as lift loss, ground erosion, significant noise pollution, and sonic fatigue, all of which are dominated by impinging tones mainly caused …
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Heat Transfer Characterization in Jet Flames Impinging on Flat Plates
The experimental work involves calculation of radial distribution of heat transfer coefficient at the surface of a flat Aluminium plate being impinged by a turbulent flame jet. Heat transfer coefficient distribution at the surface is computed from the measured heat flux and temperature data using a …
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Investigation on the Interaction of an Impinging Jet with Cylinder Wakes
<p>Jet impingement cooling is a widely used cooling method due to the high heat transfer rates associated with it. Research for improving heat transfer rates for this cooling is still being carried out due to its broad application in various fields like gas turbine blade cooling, electronic …
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Flow and heat transfer characteristics of turbulent swirling impinging jets [thesis]
Numerous industrial applications rely on impinging jets to impart convective heat and mass transfer in processes ranging from the cooling of electronic devices and gas turbine blades to drying of paper and food products. Conventionally, non-swirling impinging jets have been employed, but some …
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High Speed Impinging Jet Plating: Slot Jet and Through-Hole Plating
The characteristics of two different impinging jet plating systems was investigated in this study. The local mass transfer rates for slot jet system were measured with use of sectioned electrode technique and were compared with the other previous studies. Based on the measured mass transfer …
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Cleaning viscoplastic soil layers from flat surfaces using impinging water jets
Impinging liquid jets are widely used in industry to clean unwanted soil layers from the internal walls of storage tanks and mixing vessels. Viscoplastic layers are common in a wide range of industrial applications and are challenging to clean due to their yield stress behaviour. When a stationary …
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Flow fields created by impinging liquid jets and applications in cleaning
… (as much as 70%) is used just for cleaning. Impinging liquid jets are frequently used for cleaning operations and currently, almost all industrial cleaning systems are based on empirical results. In an effort to develop efficient and sustainable cleaning systems, I have studied the flow field …
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Sustaining and impinging factors on teaching satisfaction of effective middle level teachers
1 PDF file (vii, 185 pages)
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An Experimental Investigation of One-Dimensional Intermixing characteristics of Impinging Liquid Columns
Made available in DSpace on 2017-07-06T18:55:47Z (GMT). No. of bitstreams: 3 Parece_Martin_V_MS.pdf: 36397619 bytes, checksum: 56fb342dac0e7081e5e16a06d80f6c49 (MD5) Parece_Martin_V_MS_ABS.pdf: 585854 bytes, checksum: 2c8ecbe43026532612b448a521aa44c7 (MD5) license.txt: 4813 bytes, checksum: …
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Separation of the Heat Transfer Components for Diffusion Flames Impinging onto Ceilings
… components from a propane diffusion flame impinging onto a ceiling. A 0.3 m square sand burner with propane as the fuel type provided a steady-state fire. In the first series of experiments, measurements of gas temperature and velocity were made at 76 mm vertical intervals above the burner …
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Numerical and Experimental Investigation of Single and Two-Phase Impinging Jet Heat Transfer
… investigation of single and two-phase impinging jet heat transfer was carried out. Various parameter effects on impinging jet heat transfer were tested numerically e.g. geometric parameters, Biot number, fin structure and presence of a baffle in the jet flow. An experimental set-up was …
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Mixing performance of a novel, continuous confined impinging jets mixer using competitive reactions
… hydroxide was continuously fed to the first impinging jet, while an aqueous solution of hydrochloric acid and ethyl chloroacetate was fed to the second jet. The concentration of ethanol in the final solution was experimentally determined by gas chromatography (GC) to determine the mixing …
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