Intake duct design method, intake duct design program, and intake duct design device

摘要

An intake duct designing method includes: setting a value of a design parameter concerning a design target directed to an aircraft intake duct including a bypass mechanism that suppresses an aerial vibration phenomenon; setting a shape of the design target using the design parameter value; performing computational fluid dynamics analysis including calculating aerodynamic characteristics of the design target and a necessary bypassing flow rate of air released through the bypass mechanism for suppressing the aerial vibration phenomenon, by creating an analytical model for the analysis using the shape of the design target; determining whether an analysis result satisfies a preset design condition; updating the design parameter value when the analysis result is determined as not satisfying the design condition; and repeating the shape setting, the computational fluid dynamics analysis, the determining, and the design parameter value updating, until the analysis result is determined as satisfying the design condition.