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Showing 1 to 20 of 196 for “"nozzles"”.
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Inclusion behaviour in steel flows through convergent nozzles.
… velocity have been studied. Two experimental nozzles have been tested which have demonstrated the importance of limiting the centripetal force.</p> <p>It has been shown that there is a good relationship between hydrogen bubble behaviour and model predictions. This has been particularly true of …
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Study of deposit formation inside diesel injectors nozzles
Diesel engines are widely used in heavy duty transportation applications such as in trucks, buses and ships because of their reliability and high torque output. A key diesel technology is the injection system which is constantly improved to produce better spray quality and deeper spray penetration …
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A theoretical study of the performance of resistojet nozzles
The theoretical development of four computer models of resistojet nozzle performance is reported. Five main energy loss processes are accounted for; these are (i) frozen chemical rate processes, (ii) finite rate vibrational relaxation, (iii) incomplete expansion, (iv) viscous flow and (v) radial …
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Descaling petroleum production tubing using multiple high-pressure nozzles
… low flow rate of 12 l/m from multiple flat fan nozzles of different arrangement and stand-off distance. Housed in a constructed simulated production tubing chamber with vacuum and compression capacities to remove hard scale deposits of SrSO4 and CaCO3. In addition to the constructed wax deposit …
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Non-equilibrium condensation of carbon dioxide in supersonic nozzles.
Massachusetts Institute of Technology. Dept. of Mechanical Engineering. Thesis. 1966. Sc.D.
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Computational Investigation of Impingement Cooling for Regeneratively Cooled Rocket Nozzles
<p>Jet impingement cooling is an internal cooling configuration used in the thermal management of temperature sensitive systems. With rocket engine combustion temperatures rising as high as 3600 K, it is essential for a cooling method to be applied to ensure that the nozzle integrity can be …
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Three dimensional printing : machine control from CAD model to nozzles
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1991.
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Adjoint-based geometry optimisation with applications to automotive fuel injector nozzles
Methods of Computational Fluid Dynamics (CFD) have matured, over the last 30 years, to a stage where it is possible to gain substantial insight into fluid flow processes of engineering relevance. However, the motives of fluid dynamic engineers typically go well beyond the level of improved …
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Compressible Flow Through Convergent Conical Nozzles With Emphasis on Thetransonic Region
Made available in DSpace on 2014-12-09T17:13:45Z (GMT). No. of bitstreams: 1 6901305.pdf: 2610215 bytes, checksum: 3f8d31f2208f27e3312562d78a2d1bb8 (MD5) Previous issue date: 1968
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A CFD Investigation of Axisymmetric Microthruster Nozzles for Use on Nano-Satellites
<p>The performance of microthruster nozzles (^ 0.1 N thrust) depending on nozzle contour, propellant and surroundings, destined for use in nanosatellite missions, is investigated via a numerical approach using the Wind-US flow solver. An experimental apparatus designed to measure microthruster …
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Characterization and Analysis of Supersonic Flow Through De Laval Nozzles at Varied Design Conditions
… experimental investigation of supersonic planar nozzles under different design conditions has been conducted. Supersonic planar nozzles are common geometries observed in supersonic wind tunnels and aircraft or rocket engines. For the important role they play in wind tunnel testing and aircraft …
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Local instantaneous convective heat transfer characteristics from mechanical and supply pulsed radial reattaching nozzles
… and supply pulsated radial reattaching, CPRJR, nozzles were documented as a function of nozzle exit angle (0° and 20°), non-dimensional gap height (0.05 and 0.13), non-dimensional flow guide height (0.8 and 1.16), mechanical pulsation rate (5 and 10 Hz), supply pulsation rate (10, 20, 30, and 40 …
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Argon Bubble Behavior in Slide-Gate Tundish Nozzles During Continuous Casting of Steel Slabs
… the argon bubble behavior in slide-gate nozzles and to analyze phenomena related to product defects and operational problems during the continuous casting of steel slabs. Water model experiments are performed to study bubble formation behavior, including bubble size, frequency, mode and …
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Dispersion of water sprays in a transverse air jet and the aging of spray nozzles
… and the spray dispersion patterns of the nozzles used on the glass production lines are examined. The droplet diameter, velocity and number flux are measured with a Phase Doppler Particle Analyzer. When the fibers are pulled from the bushing plate, they move at very high velocities and …
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Propulsion system analysis for conceptual design: drag and losses of nozzles and mixed compression inlets
… inlets and a study of advanced technology nozzles. The new computational techniques have been created to predict drag and total pressure recovery for both axisymmetric and 2-D mixed compression inlet configurations. These inlets are designed for use in aircraft with sustained supersonic …
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An investigation of residual fuel oil ash deposit formation and removal in cooled gas turbine nozzles
… having air- and water-cooled first-stage turbine nozzles. It was found that water-cooling of the turbine nozzle would result in an increase in engine availability of 27 per cent when operating on heavy residual fuel oil.
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Evaluation of granular media to wastewater treatment; advanced primary treatment utilising modified pumice, titanomagnetite and ceramic nozzles.
… filtration system incorporating porous ceramic nozzles. The two media types studied included titanomagnetite (TM) and Silicon Sponge (SS). Titanomagnetite is an ironsand concentrate with a very fine grain size (0.07 to 0.18mm). Silicon Sponge is abraded river pumice and was available in two …
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A Theoretical and Experimental Investigation of Transonic Flow in the Throat Region of Annular Axisymmetric, Supersonic Nozzles
Made available in DSpace on 2014-12-13T19:55:33Z (GMT). No. of bitstreams: 1 8009020.pdf: 5866913 bytes, checksum: 0c204d07b02fb705f5123466664d7cde (MD5) Previous issue date: 1979
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Vortex control of two-phase refrigerant flow in nozzles and its application in ejector vapor compression cycles
… of vortex flashing R134a flow expanded through nozzles under various conditions have been measured. A 1D model for the estimation of vapor qualities in the initially subcooled flashing nozzle flow based on the measurement results was also developed. It was found that after the introduction of …
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