Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Houshang B. Ebrahimi"'
Publikováno v:
Journal of Propulsion and Power. 28:991-999
High-fidelity simulations with a validated methodology are employed to explore the physical processes associated with different injection strategies on supersonic combustion. The configurations consider a commonly employed open single-cavityflamehold
Publikováno v:
AIAA Journal. 48:572-582
Three-dimensional simulations are employed to examine the effect of inlet distortion and model fidelity with Reynolds averaged Navier-Stokes or large eddy simulation approaches for a generic circular cross-sectional supersonic combustor at a flight c
Publikováno v:
Journal of Propulsion and Power. 24:345-352
Internal wave reverberation processes in multiple-tube, pulsed detonation engines are considered. The study is based on a two-dimensional analysis of dual- and triple-detonation tubes exhausting through a common nozzle. Computations are first perform
Autor:
Houshang B. Ebrahimi
Publikováno v:
Journal of Spacecraft and Rockets. 45:95-103
The objective of this investigation is to numerically evaluate effects of a reaction control (divert) jet on the aerodynamic performance of a generic interceptor missile operating at supersonic flight conditions. These effects include transient opera
Publikováno v:
Journal of Propulsion and Power. 18:1042-1048
The present computational study explores some issues concerning the operational performance of pulse detonation engines (PDE) with hydrogen/oxygen propellants. One- and two-dimensional, transient calculations are employedassuming finite rate chemical
Publikováno v:
Journal of Propulsion and Power. 18:225-232
The present study explores some issues concerning the operational performance of pulsed detonation engines. Zero-, one-, and two-dimensional transient models are employed in a synergistic manner to elucidate the various characteristics that can be ex
Publikováno v:
International Journal of Energetic Materials and Chemical Propulsion. 5:662-672
Autor:
Houshang B. Ebrahimi
Publikováno v:
Journal of Spacecraft and Rockets. 37:713-719
The objective is to evaluate the transient effects of a reaction control jet on the aerodynamic performance of a genericinterceptormissileoperating at supersonice ightconditions.Three-dimensionalcomputationsofthehighly turbulent e owe eld produced by
Publikováno v:
Journal of Propulsion and Power. 16:178-186
The generalized implicit e ow solver (GIFS)computerprogram has been modie ed and applied fortheanalysis of three-dimensionalreactingtwo-phasee owsimulationproblems.TheintentoftheoriginalGIFSdevelopmenteffort was to provide the joint Army, Navy, NASA,
Autor:
Houshang B. Ebrahimi
Publikováno v:
Journal of Spacecraft and Rockets. 34:642-649
Validation of computational e uid dynamic (CFD) models appropriate for subsonic through hypersonic e ow applicationsrequirescarefulconsiderationofthephysicalprocessesencounteredinthesee ightregimesanddetailed comparisons of the calculated results wit