Results 51 to 60 of about 593 (134)

The hydrodynamic and flow noise generation mechanisms of XLUUV based on a numerical comparative study

open access: yesApplied Ocean Research
As a key component of an underwater vehicle’s propulsion system, the pump-jet propulsor (PJP) performance is also strongly related to the hull wake. There are mainly rotating hulls represented by an idealized submarine (SUBOFF) and non-rotating hulls ...
Xing He   +5 more
doaj   +1 more source

Aerodynamic Conceptual Design of Boundary Layer Ingestion Propulsor Systems: A Quasi-2D Through Flow Analysis Method and Multi-Fidelity Propulsor Design Framework [PDF]

open access: yes
A propulsor design framework for maximizing the benefits of boundary layer ingestion is presented. The performance of BLI is strongly affected by all propulsor components, including the boundary layer characteristics (displacement thickness and form ...
Lee, B. J.   +2 more
core   +1 more source

Novel Thermal Energy Conversion Technologies for Advanced Electric Air Vehicles [PDF]

open access: yes
Future air vehicles will increasingly incorporate electrical powertrains that require very tight integration of power, propulsion, thermal, and airframe technologies.
Dyson, Rodger W.
core   +1 more source

Rotorcraft convertible engine study [PDF]

open access: yes
The objective of the Rotorcraft Convertible Engine Study was to define future research and technology effort required for commercial development by 1988 of convertible fan/shaft gas turbine engines for unconventional rotorcraft transports. Two rotorcraft
Earle, R. V., Gill, J. C., Mar, H. M.
core   +1 more source

Propulsion Study for Small Transport Aircraft Technology (STAT) [PDF]

open access: yes
Propulsion requirements were determined for 0.5 and 0.7 Mach aircraft. Sensitivity studies were conducted on both these aircraft to determine parametrically the influence of propulsion characteristics on aircraft size and direct operating cost (DOC ...
Earle, R. V.   +5 more
core   +1 more source

PHENOMENOLOGICAL ANALYSIS OF A CONCEPTUAL WATERJET PROPULSOR BASED ON THE COANDA EFFECT [PDF]

open access: yes, 2019
This work is part of a research project conceived at the Federal University of Rio Grande. The project aims to create and develop mechanical devices that use the Coanda effect to enhance their overall efficiency.
Isoldi, L. A.   +4 more
core   +2 more sources

Aeronautical Engineering: A special bibliography with indexes, supplement 62 [PDF]

open access: yes
This bibliography lists 306 reports, articles, and other documents introduced into the NASA scientific and technical information system in September ...

core   +1 more source

High energy propellants - A continuing bibliography with indexes [PDF]

open access: yes
Bibliography on solid, liquid, and hybrid high energy propellants and oxidizers, propellant handling and storage, toxicity and hazards, and safety ...

core   +1 more source

The Specialist Committee on Detailed Flow Measurements. Final Report and Recommendations to the 26th ITTC [PDF]

open access: yes
The scope of this report is to review up-todate measurement systems and methods available for flow-field and wave-field measurements and describe applications of Particle Image Velocimetry (PIV), stereoscopic PIV (SPIV), Laser Doppler Velocimetry (LDV ...
Atsavapranee, Paisan   +6 more
core  

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