Method for regulating and designing engine jet pipe throat area by taking installation performance into account
A technology of engine nozzle and area adjustment
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[0013] This embodiment provides a design method for adjusting the throat area of the engine nozzle considering the installation performance, which is characterized in that: the design method for adjusting the throat area of the engine nozzle considering the installation performance is as follows:
[0014] According to the flight altitude, Mach number and engine state, the engine main adjustment plan considering the non-installation performance is used to determine the nozzle throat area required by the engine at this time, and 70% of this area is taken as the minimum area, and 130% of this area % is taken as the maximum value, and is divided into a series of nozzle throat areas, which are divided into 10 equal parts; based on the engine master adjustment plan, engine limit value and series nozzle throat area, use engine zero-dimensional calculation software (such as turbotrans, etc.) Calculate the corresponding engine section parameters, adjustable section size, and engine ...
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