Zobrazeno 1 - 10
of 58
pro vyhledávání: '"Anthony Demetriades"'
Autor:
Anthony Demetriades
Publikováno v:
AIAA Journal. 34:2490-2495
On the basis of earlier experiments demonstrating that boundary-layer transition in a supersonic nozzle can be moved upstream by local surface cooling, transition delay was sought by locally heating the nozzle surface. This experiment was done in a t
Publikováno v:
Physics of Fluids. 8:3253-3263
An inviscid, parallel, spatial linear stability analysis is performed on both bounded and semibounded developing mixing layers formed between a laminar Mach 8 stream and another at Mach 3. Three unstable modes have been found in the initial mixing zo
Publikováno v:
AIAA Journal. 34:2484-2489
An experimental investigation of the spatial structure of second-mode instability waves was carried out in the boundary layer of a 7-deg half-angle, sharp-nosed cone at an edge Mach number of 6.8. Measurements were made at Reynolds numbers of 2.3 x 1
Publikováno v:
AIAA Journal. 30:1795-1799
A recently developed analysis of the laminar mixing of two steady two-dimensional flows is subjected to a comparison with two different sets of experimental data. The theory considers the mixing beyond the trailing edge of a thin partition, accounts
Autor:
Anthony Demetriades
Publikováno v:
Journal of Spacecraft and Rockets. 29:432-436
Observations of boundary-laye r transition in a supersonic wind-tunnel nozzle throat were made in the region where the local Mach number increased from 0.4 to 2. The wall temperature ranged from adiabatic to 0.66 times the stagnation temperature, and
Autor:
Anthony Demetriades
Publikováno v:
AIAA Journal. 29:168-173
An analytic solution is presented for the steady, two-dimensional mixing of two parallel, laminar, and initially dissimilar streams beyond the trailing edge of a thin partition. The method consists of combining known analytic solutions for flat-plate
Autor:
Anthony Demetriades, Scott G. Anders
Publikováno v:
AIAA Journal. 28:2003-2005
The endurance problem should be eased for hot-film anemometers, wich replace the fragile wire by a thin metallic film deposited on a rigid substrate. Some characteristics of such hot films are described.
Autor:
Anthony Demetriades, Tory Brogan
Publikováno v:
20th AIAA Advanced Measurement and Ground Testing Technology Conference.
This paper deals with the connection, established by measurements, between the condition of the wall boundary layers on a supersonic nozzle, and the pressure fluctuations in the core flow of the nozzle. The evidence concerning the appearance of turbu
Autor:
Anthony Demetriades, Tory Brogan
Publikováno v:
36th AIAA Aerospace Sciences Meeting and Exhibit.
The effects of surface heating were explored in a two-dimensional Mach 3 DeLaval nozzle to identify transition mechanisms related to heat transfer. Earlier work demonstrated that when surface heating was applied to the nozzle throat, the boundary lay
Publikováno v:
25th Plasmadynamics and Lasers Conference.