Results 61 to 70 of about 1,909,180 (166)

Supersonic boundary-layer transition on the LaRC F-106 and the DFRF F-15 aircraft. Part 2: Aerodynamic predictions [PDF]

open access: yes
In the leading edge region, the measured pressure distributions exhibit extreme variations from strong suction peaks to a pressure maximum at the attachment line.
Miller, D. S., Rose, Ollie J.
core   +1 more source

Numerical Laser Energy Deposition on Supersonic Cavity Flow and Sensor Placement Strategies to Control the Flow

open access: yesThe Scientific World Journal, 2013
In this study, the impact of laser energy deposition on pressure oscillations and relative sound pressure levels (SPL) in an open supersonic cavity flow is investigated.
Ibrahim Yilmaz, Selin Aradag
doaj   +1 more source

Full load testing in the platform module prior to tow-out: A case history of subsynchronous instability [PDF]

open access: yes
An electric motor driven centrifugal compressor to supply gas for further compression and reinjection on a petroleum production platform in the North Sea was examined.
Fulton, J. W.
core   +1 more source

Performance analysis of a two-stage ejector in an ejector refrigeration system using computational fluid dynamics

open access: yesEngineering Applications of Computational Fluid Mechanics, 2020
In this study, computational fluid dynamics (CFD) was used to investigate the performance of the steam ejector used in refrigeration systems to increase operational flexibility and COP.
N. Suvarnakuta   +3 more
doaj   +1 more source

Analysis and Optimization of Exergy Flows inside a Transcritical CO2 Ejector for Refrigeration, Air Conditioning and Heat Pump Cycles

open access: yesEnergies, 2019
In this study, the exergy analysis of a CO2 (R744) two-phase ejector was performed using a 1D model for both single and double choking conditions. The impact of the back pressure on the exergy destruction and exergy efficiencies was presented to evaluate
Sahar Taslimi Taleghani   +2 more
doaj   +1 more source

An experimental study of the sources of fluctuating pressure loads beneath swept shock/boundary-layer interactions [PDF]

open access: yes
An experimental research program providing basic knowledge and establishing a database on the fluctuating pressure loads produced on aerodynamic surfaces beneath three dimensional shock wave/boundary layer interactions is described. Such loads constitute
Garg, S., Settles, G. S.
core   +1 more source

Comparative study of boundary treatment schemes in lattice Boltzmann method

open access: yesJournal of Fluid Science and Technology
Suspension flows are frequently found in our daily lives, and their rheological properties are critical issues in many fields. In numerical simulations of suspension flows based on the two-way coupling approach, it is important to treat the no-slip ...
Hijiri ADACHI   +2 more
doaj   +1 more source

Singular limit of Hele-Shaw flow and dispersive regularization of shock waves

open access: yes, 2006
We study a family of solutions to the Saffman-Taylor problem with zero surface tension at a critical regime. In this regime, the interface develops a thin singular finger.
A. V. Gurevich   +11 more
core   +1 more source

Immediate effects of a five minutes back massage on patients’ physiological parameters in critical care unit

open access: yesمجله دانشگاه علوم پزشکی گرگان, 2001
Recent publications have questioned the efficacy of massage. It is acknowledged that critical care environment are stressful for patients in term of invasive medical, and nursing procedures.
H.Rahmani . Anaraki (M.Sc)   +3 more
doaj  

Radiation effect on rocket engine performance [PDF]

open access: yes
The effects of radiation on the performance of modern rocket propulsion systems operating at high pressure and temperature were recognized as a key issue in the design and operation of various liquid rocket engines of the current and future generations ...
Chiu, Huei-Huang
core   +1 more source

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