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2. Rotor solidity - Wikipedia

   en.wikipedia.org/wiki/Rotor_solidity

   Rotor solidity is a dimensionless quantity used in design and analysis of rotorcraft, propellers and wind turbines. Rotor solidity is a function of the aspect ratio ...

3. Compressor map - Wikipedia

   en.wikipedia.org/wiki/Compressor_map

   A compressor map is a chart which shows the performance of a turbomachinery compressor.This type of compressor is used in gas turbine engines, for supercharging reciprocating engines and for industrial processes, where it is known as a dynamic compressor.

4. Campbell diagram - Wikipedia

   en.wikipedia.org/wiki/Campbell_diagram

   Such a chart can be used in turbine design. Experimentally measured vibration response spectrum as a function of the shaft's rotation speed ( waterfall plot ), the peak locations for each slice usually corresponding to the eigenfrequencies .

5. Blade solidity - Wikipedia

   en.wikipedia.org/wiki/Blade_solidity

   In an airfoil, the mean line curvature is designed to change the flow direction, the vane thickness is for strength and the streamlined shape is to delay the onset of boundary layer separation. Taking all the design factors of an airfoil , the resulting forces of lift and drag can be expressed in terms of lift and drag coefficient.

6. Chord (aeronautics) - Wikipedia

   en.wikipedia.org/wiki/Chord_(aeronautics)

   The wing, horizontal stabilizer, vertical stabilizer and propeller/rotor blades of an aircraft are all based on aerofoil sections, and the term chord or chord length is also used to describe their width. The chord of a wing, stabilizer and propeller is determined by measuring the distance between leading and trailing edges in the direction of ...

7. Mazda Wankel engine - Wikipedia

   en.wikipedia.org/wiki/Mazda_Wankel_engine

   As a three-rotor design, with each chamber displacing 654 cc (39.9 cu in), three chambers (one per rotor) would displace 1,962 cc (119.7 cu in), and so the new series name reflected this value ("20" suggesting 2.0 litres). The three-rotor 20B-REW was only used in the 1990-1995 Eunos Cosmo. It was offered in both 13B-RE and 20B-REW form. It ...

8. NACA airfoil - Wikipedia

   en.wikipedia.org/wiki/NACA_airfoil

   is the half thickness at a given value of x (centerline to surface), t is the maximum thickness as a fraction of the chord (so t gives the last two digits in the NACA 4-digit denomination divided by 100). In this equation, at x = 1 (the trailing edge of the airfoil), the thickness is not quite zero. If a zero-thickness trailing edge is required ...

9. Components of jet engines - Wikipedia

   en.wikipedia.org/wiki/Components_of_jet_engines

   Turboprop, turboshaft and turbofan engines have additional turbine stages to drive a propeller, bypass fan or helicopter rotor. In a free turbine the turbine driving the compressor rotates independently of that which powers the propeller or helicopter rotor. Cooling air, bled from the compressor, may be used to cool the turbine blades, vanes ...