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.
Results
Showing 1 to 20 of 40 for “"Free Jet"”.
-
Flat Plate-Free Jet Impingement Studies
Made available in DSpace on 2014-12-09T18:12:23Z (GMT). No. of bitstreams: 1 6812127.pdf: 2401029 bytes, checksum: cf2a87216bd80e344ceacff1b11b1b0b (MD5) Previous issue date: 1968
-
Similitude in turbulent free-jet diffusion flames
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1960.
-
The numerical analysis of turbulent free jet flows.
… or Finite Element, method of analysis to free turbulent jet flows.This problem was considered to be appropriate for several reasons. First, a jet of fluid entrains and mixes with another fluid in a number of important engineering applications. Examples of these are legion and include their …
-
Nozzle Free Jet Flows Within the Strong Curved Shock Regime
Made available in DSpace on 2014-12-13T19:55:22Z (GMT). No. of bitstreams: 1 7524404.pdf: 1976653 bytes, checksum: a92ac27c436c21fa824e0d39bc362133 (MD5) Previous issue date: 1975
-
Deposition of Newtonian Particles Entrained in a Turbulent Axisymmetric Free Jet
… study of particles entrained in axisymmetric air jets. An experimental rig was designed and built to study entrainment properties and deposition of Newtonian particles, after injection into a turbulent axisymmetric free air jet. Newtonian spherical particles, ranging from 1mm to 6mm in diameter, …
-
A mach 1.95 free-jet facility for experimental investigation of injectant flow patterns
… patterns near the test surface, a supersonic free-jet facility was designed and constructed. This facility provides a Mach 1.95 flow over a test section area of 6.35 cm by 5.08 cm. The facility was thoroughly tested and proved that it is durable, versatile, and capable of providing repeatable …
-
Performance and design improvements toward the commercialization of a needle-free jet injector/
… Lab has developed a handheld needle-free jet injector based on a custom Lorentz-force motor. While the current handheld design is effective as a research tool, many improvements are needed before it can be a commercially viable product for individual human use. Improvements in various …
-
Design and fabrication of a piezoelectric stack actuator for use in a needle-free jet injector
… ceramic stack actuator for use with needle-free jet injection (NFJI) devices. While NFJI devices have been in use for over 60 years only recently have they been electronically actuated which allows for precise control of jet velocity, penetration depth, and injection volume. Most NFJI …
-
An investigation of the shape, temperature distribution and tension of a heated free jet flowing at ultra low Reynolds numbers
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1964.
-
A Lorentz-force actuated needle-free intraocular injection device
… complications. Lorentz-force actuated needle-free jet injection has been shown to successfully deliver fluid to various layers of skin, and, by its nature, may reduce intravitreal injection anxiety and complications. The challenges of adapting current Lorentz-force actuated needle-free jet …
-
Radical-molecule reaction dynamics in the low temperature regime.
… makes use of the cooling extant in uniform and free supersonic expansions to produce low temperature (90-250 K in the uniform expansion and near 1 K in the free jet) environments which are not at chemical equilibrium. The design of the axisymmetric Laval nozzles, which are integral in producing …
-
Mathematical modelling and experimental study of non-equilibrium flows of gases with internal degrees of freedom
… related to rotational relaxation processes in free jet expansion of nitrogen have been done in the past for a wide range of stagnation conditions. When the Knudsen number is of order one, a continuum description of the fluid flow becomes invalid due to free drifting molecules, which lead to the …
-
Microwave Spectroscopy of Weakly Bound Molecular Complexes
… of the complexes is achieved by a molecular free jet expansion of the monomeric components in an inert carrier gas. The expanding gas is directed into a Fabry-Perot cavity where the rotational transitions of the species of interest are excited with a microwave pulse. The subsequent coherent …
-
Laser Doppler anemometry measurements of a confined turbulent water jet with a uniform background flow
An axisymmetric, turbulent water jet with several very slow, coflowing external streams was measured with a frequency shifted laser Doppler anemometer. The objective was to approximate a jet submerged in an ambient fluid of infinite domain by using a confined jet in a uniform coflow. The coflow …
-
Infrared imaging: a proposed validation technique for computational fluid dynamics codes used in STOVL applications
… gaseous flow fields. Specifically, a heated, free-jet test facility was constructed. The gaseous flow field of the jet exhaust was characterized using an infrared imaging technique in the 2 to 5.6μm wavelength band as well as conventional pitot tube and thermocouple methods. These infrared …
-
Particle Image Velocimetry Applications of Fluorescent Dye-Doped Particles
… experiment using a standard PIV setup in a free jet. This work was the first to demonstrate PIV using fluorescent KR620-doped microspheres in an airflow, and results from the experiment were compared to similar data taken using standard PIV techniques. For the free jet results, Mie-scattered …
-
Development and Ground Testing of Direct Measuring Skin Friction Gages for High Enthalpy Supersonic Flight Tests
… flows such as that in supersonic combustion ramjet (scramjet) engines, with a progression from free-jet ground tests to a design for an actual hypersonic scramjet-integrated flight vehicle. The designs were non-nulling, with a sensing head that was flush with the model wall and surrounded by a …
-
The machinability of a gamma titanium aluminide intermetallic
… and superabrasive (diamond and CBN) wheels with free jet nozzles. Benchmarking of the -TiAl alloy against other -TiAl (Ti-45Al-2Mn-2Nb +0.8%vol. TiB2), burn resistant and conventional titanium (Ti-6Al-4V) alloys was also performed. Full and fractional factorial (Taguchi) experimental designs were …
-
Numerical Investigations of a Pipe Jet With Coil Inserts With and Without Crossflow
… study of coil-inserted elevated turbulent jets, aimed at advancing the understanding of passive flow control mechanisms and their effects on both free jet and jet in crossflow (JICF). It provides new insight into the fundamental physics of swirl-assisted mixing and offers a scalable …
Page 1 of 2