The effectiveness of such a device has been proven experimentally and by calculation. It is thus possible to achieve effective cross-section restrictions of the order of 10% with an engine drawing-off of the order of 3%. In the case of a nozzle such as intended to equip a military drone...
Figure 6. 3D model of a nozzle equipped with a curved pipe (𝛽=90°)β=90°: (a)—isometry, (b)—calculation scheme (developed by the authors). An air model medium was used for the numerical experiments. The initial data for the calculation were the gas pressure at the nozzle inle...
The thrust calculation method was 𝐹=𝑚𝑣+𝐴(𝑃𝑛−𝑃0)F=mv+A(Pn−P0), where m is the gas mass flow rate, v is the outlet gas velocity, A is the outlet area, 𝑃𝑛Pn is the outlet static pressure, and 𝑃0P0 is the outside atmospheric pressure. According to th...
The thrust calculation method was 𝐹=𝑚𝑣+𝐴(𝑃𝑛−𝑃0)F=mv+A(Pn−P0), where m is the gas mass flow rate, v is the outlet gas velocity, A is the outlet area, 𝑃𝑛Pn is the outlet static pressure, and 𝑃0P0 is the outside atmospheric pressure. According to th...