http://uf.catalog.fcla.edu/uf.jsp?st=UF003804356&ix=nu&I=0&V=D&pm=1
Topics: Mach number, Aerodynamics.
http://uf.catalog.fcla.edu/uf.jsp?st=UF003689748&ix=nu&I=0&V=D&pm=1
Topics: Mach number, Aeronautics.
2,232
2.2K
Jun 17, 2010
06/10
by
Lieblein, S
texts
eye 2,232
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No Abstract Available
Topics: COMPRESSORS, CORRELATION, MACH NUMBER
http://uf.catalog.fcla.edu/uf.jsp?st=UF003593774&ix=nu&I=0&V=D&pm=1
Topics: Mach number, Compressibility, Aerodynamics.
http://uf.catalog.fcla.edu/uf.jsp?st=UF003690375&ix=nu&I=0&V=D&pm=1
Topics: Aerodynamics, Supersonic, Mach number.
319
319
Jun 17, 2010
06/10
by
Graham, D. J
texts
eye 319
favorite 0
comment 0
No Abstract Available
Topics: AIRFOIL PROFILES, MACH NUMBER, SHAPES
http://uf.catalog.fcla.edu/uf.jsp?st=UF003613532&ix=nu&I=0&V=D&pm=1
Topics: Mach number, Bombers, Aerodynamics--Research.
231
231
Jun 19, 2010
06/10
by
English, R. D
texts
eye 231
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comment 0
No Abstract Available
Topics: AEROELASTICITY, MACH NUMBER, SUBSONIC SPEED, WINGS
262
262
Jun 17, 2010
06/10
by
English, R. D
texts
eye 262
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comment 0
No Abstract Available
Topics: AEROELASTICITY, MACH NUMBER, SUBSONIC SPEED, WINGS
249
249
Jun 17, 2010
06/10
by
Corson, B. W.; Crigler, J. L.; Draley, E. C
texts
eye 249
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comment 0
No Abstract Available
Topics: HIGH SPEED, MACH NUMBER, PROPELLERS, TRENDS
Flow control in high-speed is challenging due to the high-pressure shock and low-pressure recirculation bubble attached around the vehicle. Wave drag, and Base drag are important accouterments of flow around high-speed objects. This paper deals with base drag , only and presents an experimental study of aerospikes behind the base of bluff bodies to control this drag. A plate of 1 mm thickness with two spikes at 11.5 mm is placed between the nozzle and duct as a passive controller. The Mach...
Topics: Base Pressure, Wall Pressure & Mach Number
http://uf.catalog.fcla.edu/uf.jsp?st=UF003598987&ix=nu&I=0&V=D&pm=1
Topics: Mach number, Projectiles, Aerial, Aerodynamics--Research.
http://uf.catalog.fcla.edu/uf.jsp?st=UF003613208&ix=nu&I=0&V=D&pm=1
Topics: Mach number, Fighter planes, Aerodynamics--Research.
http://uf.catalog.fcla.edu/uf.jsp?st=UF003614162&ix=nu&I=0&V=D&pm=1
Topics: Mach number, Compressibility, Fighter planes, Aerodynamics--Research.
246
246
May 30, 2010
05/10
by
Hadaway, W. M
texts
eye 246
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comment 0
Aerodynamic loads on external store adjacent to 60 deg delta wing at Mach numbers 0.75 to 1.96
Topics: AERODYNAMIC LOADS, ANGLE OF ATTACK, DELTA WINGS, EXTERNAL STORES, MACH NUMBER, AERODYNAMIC LOAD,...
A numerical work was carried out to study the effectiveness of micro-jets to control base pressure in suddenly expanded two-dimensional planar duct. Two micro-jets of 1 mm orifice diameter located at 90° intervals along a pitch circle distance of 1.5 times the nozzle exit diameter in the base region were employed as active controls. The calibrated Mach numbers at the entry to suddenly expanded duct was 1.87. The length-to-diameter ratio (L/D) of suddenly expanded duct was 10. Nozzles...
Topics: : CFD, C-D Nozzle, ANSYS, Pressure & Mach Number
In this paper, Finite element method (FEM) were used to simulate the different flow configuration. Convergent divergent (CD) nozzle was considered with extended divergent duct. 1 mm of microjets orifice diameter were arranged at ninety degrees at PCD 13 mm to control base pressure in a suddenly expanded flow. The designed Mach number of CD nozzleis 1.87 and area ratio 3.24 was considered. The different L/D of the duct was used from 2 to 10. The nozzle pressure simulated for 3, 5, 7, 9 and 11....
Topics: CFD, C-D nozzle, ANSYS, Pressure & Mach Number
426
426
Jul 11, 2010
07/10
by
NON
texts
eye 426
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comment 0
No Abstract Available
Topics: ASTRONAUTICS, FLUTTER, MACH NUMBER, MECHANICAL ENGINEERING, STRUCTURAL DESIGN
214
214
Jun 19, 2010
06/10
by
Johnson, B. H
texts
eye 214
favorite 0
comment 0
No Abstract Available
Topics: AERODYNAMIC LOADS, FRUSTUMS, MACH NUMBER, TRISONIC WIND TUNNELS
286
286
Jun 18, 2010
06/10
by
NON
texts
eye 286
favorite 0
comment 0
MAGNETOAERODYNAMIC DRAG AND SHOCK STAND-OFF DISTANCE STUDIES - FREE STREAM MACH NUMBER AND SPECIFIC HEAT RATIO MEASUREMENTS
Topics: DISTANCE, MAGNETOGASDYNAMICS, SHOCK WAVE, SPECIFIC HEAT, DRAG, FREE FLOW, MACH NUMBER,...
The present work experimentally investigates suppression of the sound level from an under expanded jet of Mach number 2.8 by water injection. The jet is produced by a solid rocket motor being static test fired. Water is injected from a radial distance of 5.2 jet diameters, at different axial locations from the exit of the nozzle, at two different angles of injection relative to the downstream jet axis. The ratio of mass flow rates of water to the nozzle exhaust gas (referred to as the mass flow...
Topics: ISRO, rocket, sound suppression, high mach number, water jet
Compressible flow in a suddenly expanded square duct was investigated experimentally to assess the effectiveness of the passive control in the form of the cavities. The flow parameters studied were the Mach number, nozzle pressure ratio, L/W ratio, and area ratio. The test were conducted for multiple cavities and without multiple cavities. From experimental results it is seen that the multiple cavity has a very good effect in reduction of base drag by decreasing the base suction and hence...
Topics: Wall Pressure, Base Flows, Cavity, Mach number & Square Duct
248
248
Jun 1, 2011
06/11
by
Saari, Martin J.; Sorin, Solomon M
texts
eye 248
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comment 0
An altitude-wind-tunnel investigation has been made to determine the performance of a Curtiss 732-1C2-0 four-blade propeller on a YP-47M airplane at high blade loadings and engine power. Propeller characteristics were obtained for a range of power coefficients from 0.30 to 1.00 at free-stream Mach numbers of 0.40 and .50.
Topics: AIRFOILS, AERODYNAMIC CONFIGURATIONS, DRAG, MACH NUMBER, TRANSONIC SPEED, SWEEPBACK
242
242
May 23, 2011
05/11
by
NON
texts
eye 242
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comment 0
In an optical fiber having NA greater than 1, light may be internally reflected when it strikes the fiber end at a fiber-air interface. This problem may be overcome by modification of the fiber by reverse tapering the core. Light is redirected by the taper to strike the interface at an angle closer to normal. This allows light to exit the fiber end that would by internally reflected in an untapered fiber of NA greater than 1. The novelty of the present invention lies in the tapering of the...
Topics: WAVE PROPAGATION, ACOUSTIC DUCTS, UNIFORM FLOW, MICROPHONES, MACH NUMBER
The prime issue in supersonic combustion is proper mixing within short duration of time since the flow is supersonic. Computational study has been performed to analyze the mixing of air and fuel using cross flow injection technique. Cross flow injection is performed by placing the fuel injectors on the walls of the scramjet engine which is perpendicular to the flow. To enhance the mixing of fuel and air, cavities were introduced. The flow recirculation inside the cavity will enhance the mixing...
Topics: Cross Flow Injectors, Mach Number, Cavity, Ramp Angle & Combustion
http://uf.catalog.fcla.edu/uf.jsp?st=UF003612700%26ix=nu%26I=0%26V=D%26pm=1
Topics: Aerofoils, Mach number, Guided bombs, Aerodynamics--Research., Aerodynamics--Research.
134
134
Jun 19, 2010
06/10
by
Mack, L. M
texts
eye 134
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comment 0
Viscous and inviscid amplification rates of two-dimensional and three-dimensional linear disturbances in laminar boundary layer at low Mach numbers
Topics: AMPLIFICATION, MACH NUMBER, COMPRESSIBLE BOUNDARY LAYER, DISTURBING FUNCTIONS, INVISCID FLOW,...
To aid in understanding the concepts of aerodynamics, wind tunnels are used. The aim of this paper is to design and analyze a two throat supersonic wind tunnel to give a better start-up condition at supersonic speeds. As the tunnel design involves high complexity, it is generally convenient to divide into segments. Initially, nozzle segment is developed using the method of characteristics (MOC) because, a careful designed nozzle is vital for tunnel function. In the next step, a settling chamber...
Topics: CFD, Design, Grid, MOC, Mach Number, Start-Up & Wind Tunnel
This paper presents the effects of various geometrical as well as fluid dynamics governing parameters on diffusers performance with significance on the inlet conditions for different area ratio in diffusers. The effects of Passage divergence, Length, Area ratio, inlet boundary layer thickness, inlet blockage , Inlet Mach number, Inlet Reynolds number, Turbulence level, Inlet Swirl, Inlet velocity profile, and Distortions have been discussed. The aspects of wall contouring, boundary layer...
Topics: Annular Diffuser, Area Ratio, Reynolds Number, Mach Number & Inlet Swirl
820
820
Jun 19, 2010
06/10
by
Morris, O. G.; Turner, K. L
texts
eye 820
favorite 0
comment 0
No Abstract Available
Topics: BOMBER AIRCRAFT, LOADS (FORCES), MACH NUMBER, REYNOLDS NUMBER, WIND TUNNELS
194
194
May 30, 2011
05/11
by
Owre, Sam; Shankar, Nataraja
texts
eye 194
favorite 1
comment 0
The purpose of this task was to provide a mechanism for theory interpretations in a prototype verification system (PVS) so that it is possible to demonstrate the consistency of a theory by exhibiting an interpretation that validates the axioms. The mechanization makes it possible to show that one collection of theories is correctly interpreted by another collection of theories under a user-specified interpretation for the uninterpreted types and constants. A theory instance is generated and...
Topics: AERODYNAMIC CONFIGURATIONS, FLIGHT CHARACTERISTICS, SCALE MODELS, TRANSONIC SPEED, MACH NUMBER
231
231
Jun 17, 2010
06/10
by
Kaattari, G. E
texts
eye 231
favorite 0
comment 0
Effect of simulated ablation gas injection on shock layer of blunt bodies at Mach 3 and 5
Topics: ABLATION, BLUNT BODY, GAS INJECTION, MACH NUMBER, SHOCK LAYER, SIMULATION, BLUNT BODIES, GAS...
154
154
Jun 17, 2010
06/10
by
Driver, C.; Robinson, R. B
texts
eye 154
favorite 0
comment 0
No Abstract Available
Topics: ELEVONS, LONGITUDINAL CONTROL, LONGITUDINAL STABILITY, MACH NUMBER, REGULUS MISSILE, STATIC...
1,296
1.3K
May 21, 2011
05/11
by
Hacker, Paul
texts
eye 1,296
favorite 0
comment 0
No Abstract Available
Topics: WINGS, COMPLETE - SWEEP, MACH NUMBER EFFECTS - COMPLETE WINGS, VIRATION AND FLUTTER
191
191
May 29, 2011
05/11
by
Huffman, George J.; Adler, Robert F.; Bolvin, David T.; Curtis, Scot
texts
eye 191
favorite 0
comment 0
Multi-purpose remote-sensing products from various satellites have proved crucial in developing global estimates of precipitation. Examples of these products include low-earth-orbit and geosynchronous-orbit infrared (leo- and geo-IR), Outgoing Longwave Radiation (OLR), Television Infrared Operational Satellite (TIROS) Operational Vertical Sounder (TOVS) data, and passive microwave data such as that from the Special Sensor Microwave/ Imager (SSM/I). Each of these datasets has served as the basis...
Topics: MACH NUMBER, REYNOLDS NUMBER, TURBULENT BOUNDARY LAYER, WIND TUNNELS, PREDICTIONS, EXPERIMENTATION
152
152
May 21, 2011
05/11
by
Burgess, Warren C , Jr; Seashore, Ferris
texts
eye 152
favorite 0
comment 0
No Abstract Available
Topics: FLOW, MIXED, MACH NUMBER EFFECTS - WING SECTIONS, WINGS, COMPLETE - ASPECT RATIO
The most challenging task concerning wind tunnel description is, to ascertain the supporting mechanism at high-speed flows inside test section with least complexity and low-cost. This paper presents the design and development of a simple and cost effective test section for a subsonic compressible wind tunnel for educational purpose. The objective of this open-type wind tunnel was to demonstrate flow around model without any interference at high-speeds. In this...
Topics: Subsonic Compressible Flow, Mach Number, Wind Tunnel, Base Pressure & Wall Pressure
431
431
Jun 1, 2011
06/11
by
Mathews, Charles W.; Thompson, Jim Roger
texts
eye 431
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comment 0
Drag measurements at transonic speeds of NACA 65-009 rectangular airfoils and airfoils swept-back 45 degrees mounted on a freely falling body to determine the effects of sweepback and aspect ratio are reported. Tests were made to compare the drag of rectangular and swept-back airfoils at a higher aspect ratio than had been used in a similar comparison reported previously.
Topics: FUEL TANKS, FUSELAGES, FIGHTER AIRCRAFT, BUFFETING, MACH NUMBER, SUPPORTS, WINGS, STREAMLINING
242
242
May 6, 2010
05/10
by
Carter, H. S.; Merlet, C. F
texts
eye 242
favorite 0
comment 0
No Abstract Available
Topics: ANGLE OF ATTACK, FOREBODIES, FREE JETS, HIGH SPEED, MACH NUMBER, YAW
190
190
Jun 17, 2010
06/10
by
Heldenfels, R. R.; Purser, P. E
texts
eye 190
favorite 0
comment 0
Facility problems in high temperature structures research
Topics: FACILITIES, HIGH TEMPERATURE RESEARCH, MACH NUMBER, FACILITY, HIGH TEMPERATURE RESEARCH, STRUCTURE
266
266
Jun 1, 2011
06/11
by
Hantzsche, W.; Wendt, H
texts
eye 266
favorite 0
comment 0
For the tunnel corrections of compressible flows those profiles are of interest for which at least the second approximation of the Janzen-Rayleigh method can be applied in closed form. One such case is presented by certain elliptical symmetrical cylinders located in the center of a tunnel with fixed walls and whose maximum velocity, incompressible, is twice the velocity of flow. In the numerical solution the maximum velocity at the profile and the tunnel wall as well as the entry of sonic...
Topics: WIND TUNNEL TESTS, AIRCRAFT, PROPELLER BLADES, THRUST LOADS, MACH NUMBER, SLIPSTREAMS
http://uf.catalog.fcla.edu/uf.jsp?st=UF003638506%26ix=nu%26I=0%26V=D%26pm=1
Topics: Mach number, Aerofoils, Drag (Aerodynamics, Lift (Aerodynamics, Aerodynamics--Research.,...
297
297
May 31, 2011
05/11
by
Harik, V. M.; Gates, T. S.; Nemeth, M. P
texts
eye 297
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comment 0
Validity of the assumptions relating the applicability of continuum shell theories to the global mechanical behavior of carbon nanotubes is examined. The present study focuses on providing a basis that can be used to qualitatively assess the appropriateness of continuum-shell models for nanotubes. To address the effect of nanotube structure on their deformation, all nanotube geometries are divided into four major classes that require distinct models. Criteria for the applicability of continuum...
Topics: FLIGHT TESTS, FUEL FLOW, DRAG, AUTONOMY, FORMATION FLYING, TRANSONIC SPEED, MACH NUMBER
267
267
May 21, 2011
05/11
by
Tucker, Warren A; Nelson, Robert
texts
eye 267
favorite 0
comment 0
No Abstract Available
Topics: FLOW, SUBSONIC, FLOW, MIXED, WING SECTIONS - THICKNESS, MACH NUMBER EFFECTS - WING SECTIONS
317
317
Jul 9, 2010
07/10
by
HEMMINGER, J. A
texts
eye 317
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A HEATING FIXTURE WAS BUILT TO PROVIDE A SIMULATION OF THE HEATING AND ENVIRONMENT ENCOUNTERED BY THE CENTAUR STANDARD SHROUD DURING ITS ASCENT THROUGH THE EARTH'S ATMOSPHERE. A COMPUTER PROGRAM WAS DEVELOPED TO DETERMINE THE OVERALL TEMPERATURE PROFILE OF A FREE-SKIN MODEL OF THE CENTAUR STANDARD SHROUD DURING THE HEATING PORTION OF THE HEATED JETTISON TESTS. THE ANALYTIC MODEL WAS VERIFIED BY ADAPTING THE COMPUTER PROGRAM TO THE CONFIGURATION OF THE HARDWARE USED IN A SERIES OF INTERMEDIATE...
Topics: OBLIQUE SHOCK WAVES, POROUS WALLS, WAVE REFLECTION, MACH NUMBER, WIND TUNNEL TESTS
PROPAGATION OF THE SHOCK WAVES IN THE EXPONENTIALLY DECREASING ATMOSPHERE
Topics: Shock wave, Pressure, Density, Velocity, Mach number, Propagation, Adiabatic and isothermal...
1,357
1.4K
Jun 17, 2010
06/10
by
Czarnecki, K. R.; Lord, D. R
texts
eye 1,357
favorite 0
comment 0
Performance test data for pressure distributions over 60 deg delta wing at Mach 1.61 and 2.01
Topics: DELTA WINGS, MACH NUMBER, PERFORMANCE TESTS, PRESSURE DISTRIBUTION, DELTA WING, PRESSURE...
292
292
May 6, 2010
05/10
by
Wasserbauer, J. F
texts
eye 292
favorite 0
comment 0
Afterburning ramjet using hydrogen at mach 3.0
Topics: AFTERBURNING, HYDROGEN, MACH NUMBER, RAMJET ENGINES, SUPERSONIC SPEED, AFTERBURNER, HYDROGEN,...
222
222
May 6, 2010
05/10
by
Gonor, A. L
texts
eye 222
favorite 0
comment 0
Exact solution of supersonic gas flow problem for spatial bodies of star-like structure
Topics: GAS FLOW, MACH NUMBER, STARS, SUPERSONIC FLOW, GAS FLOW, STAR, SUPERSONIC FLOW
206
206
Jun 19, 2010
06/10
by
Sivo, J. N
texts
eye 206
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comment 0
Altitude performance of turbojet engine using pentaborane fuel
Topics: ALTITUDE SIMULATION, MACH NUMBER, PENTABORANES, TURBOJET ENGINES, PENTABORANE, SIMULATED ALTITUDE,...
