core flow การใช้

• The engine is unusual as the core flow path is twice reversed 180 deg.
• Reducing core flow also increases bypass ratio.
• The bypass ratio has been increased over previous variants by suitable adjustments to the core flow.
• A smaller core flow / higher bypass ratio cycle can be achieved by raising the ( HP ) turbine rotor inlet temperature.
• The increase in core size and overall pressure ratio raised the core flow, decreasing the bypass ratio to 4.26.
• It has a larger 21.7 in ( 551 mm ) diameter fan, with two additional booster stages to increase core flow.
• A bypass flow can only be added to the turbojet if the turbine inlet temperature is allowed to increase to compensate for the smaller core flow.
• On the other hand, adding a stage to the rear of the compressor increases overall pressure ratio, decreases core size, but has no effect on core flow.
• Although similar in configuration, the "'PW535 "'has a T-stage, mounted on the LP shaft behind the fan, to increase overall pressure ratio and core flow.
• Although T-stages usually only supercharge the core stream, some engines do feature a deliberately oversized intermediate pressure ( IP ) compressor, which compresses both the core flow and a proportion of the bypass flow.
• If one of the two feedwater pumps fails during operation, the feedwater system will command the recirculation system to rapidly reduce core flow, effectively reducing reactor power from 100 % to 50 % in a few seconds.
• Consequently, the bypass ratio ( bypass flow divided by core flow ) is relatively high ( ratios from 4 : 1 up to 8 : 1 are common ), with the Trent XWB approaching 10 : 1.
• The Aviadvigatel company and engine manufacturer Perm Engine Company work on a new engine, without fan and core flows mixing, with a thrust in the 122-153 kN ( 27, 500-34, 500 lbf ) thrust range.
• The DOW documented the largest ever observed core flow circulation with a distance of between peak velocities on either side of the tornado, and a roughly width of peak wind gusts exceeding, making the Mulhall tornado the largest tornado ever measured quantitatively.
• The empirical parameters N _ \ mathit { o } and N _ \ mathit { w } can be obtained from measured data either by optimizing to analytical interpretation of measured data, or by optimizing using a core flow numerical simulator to match the experiment ( often called history matching ).