Fluid dynamics

Jul 17, 2014 - 2:15 AM
Technology could bring 5-10 percent fuel burn reduction
Jul 17, 2014 - 2:10 AM
The engine that powers the A380 is able to deliver higher power at hot ambient temperatures for improved airline performance.
Jul 16, 2014 - 1:00 AM
With the Bauhaus Luftfahrt, Rolls-Royce and MTU, two projects are targeting distributed thrust. The Quadcruiser combines rotary- and fixed-wing.
Titanium-aluminide low-pressure turbine blades and proposed cooling arrangements on Rolls-Royce’s proposed future UltraFan engine may owe much to the RB3025 powerplant unsuccessfully offered to power the Boeing 777X. For example, the RB3025 featured a “vortex amplifier” to simplify turbine-blade cooling with HPC air.
Jul 14, 2014 - 7:50 AM
UK engine maker Rolls-Royce is pushing ahead with advanced turbofan engine designs for future platforms, with greatly improved efficiency.
Pratt’s envisioned NGRT engine would feature an all-new compressor, a miniaturized version of P&W’s Talon combustor and possibly an eight-blade propeller.
Jul 14, 2014 - 6:25 AM
The powerplant will deliver a 20-percent fuel burn improvement over existing engines in the 5,000- to 7,000-shp range.
Jul 14, 2014 - 1:40 AM
GE names partners for Boeing 777X powerplant as testing proves performance goals.
A mockup of an open-rotor engine has been tested in an Onera wind tunnel since 2010; a full demonstrator is due to run in 2016.
Jul 11, 2014 - 6:15 AM
Development go-ahead for 2030 entry into service will factor in noise, airframe integration.
Jul 3, 2014 - 2:04 PM
Price Induction’s 575-pound-thrust turbofan might be ideal for developers of small personal jets.
Jun 17, 2014 - 3:20 PM
NASA aeronautics researchers are presenting their work on how people on the ground perceive low sonic booms.
Aerion is seeking an engine supplier now that it has switched to a trijet configuration for the “AS2” supersonic bizjet.
May 19, 2014 - 6:00 PM
The first flight of Aerion’s revamped SSBJ is expected in late 2018 or early 2019, with certification anticipated in 2021.