Method and system for calculating aerodynamic stability of turboshaft engine, equipment and medium
A turboshaft engine and stability technology, applied in complex mathematical operations, design optimization/simulation, instruments, etc., can solve problems such as the inability to calculate the influence of turboshaft engine intake pressure distortion on aerodynamic stability
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[0065] The embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but the present invention can be implemented in various ways defined and covered below.
[0066] Such as figure 1 As shown, the preferred embodiment of the present invention provides a method for calculating the aerodynamic stability of a turboshaft engine, which is used to assess the influence of intake pressure distortion on the aerodynamic stability of a turboshaft engine, comprising the following steps:
[0067] Step S1: Build a calculation model;
[0068] Step S2: Establish calculation areas and divide control volumes;
[0069] Step S3: Assuming that the aerodynamic parameters in each control volume are uniform in space, establish a set of governing equations to describe the flow inside the control volume:
[0070]
[0071] Among them, p represents the static pressure, T represents the static temperature, Indicates mass flow rate, L indic...
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