A computer-implemented method for generating, from a component model, a fluid system model of a section of a hydraulic system for an aircraft for analysis of fluid flow to predict hydraulic pressure surges to an object in the form of a landing gear system for a physical aircraft, the component model identifying components of the hydraulic system, the method comprising: identifying components in the hydraulic system using the component model for the hydraulic system wherein the step of identifying components comprises identifying a set of created components in the hydraulic system; identifying attributes for the components using the component model and a repository having performance information wherein the step of identifying attributes comprises identifying the attributes for the set of created components in the hydraulic system, wherein the component information is any one or more of: operating parameters; heat coefficients; reliability indices; relationships between components; effects of components being connected to other components; and/or performance constraints, and the attributes for the components are information about performance of each component; wherein: the set of created components comprises a set of tubes and wherein an attribute in the attributes comprises a coefficient of resistance for each bend in the set of tubes; and the step of identifying the attributes for the set of created components in the hydraulic system comprises: identifying a radius of bend for an outside diameter for a bend in a tube in the set of tubes; identifying a bend angle for the bend; and calculating the coefficient of resistance for the bend using the radius of bend and the bend angle; generating the fluid system model by using the identified attributes; and performing a fluid flow analysis of the hydraulic system using the fluid system model and a particular analysis application for simulating fluid flow in the fluid system model, and using the generated fluid system model and the fluid flow analysis to manufacture a component that is used in service or repair of the physical aircraft that is based on the aircraft in the model. identifying components in the hydraulic system using the component model for the hydraulic system wherein the step of identifying components comprises identifying a set of created components in the hydraulic system; identifying attributes for the components using the component model and a repository having performance information wherein the step of identifying attributes comprises identifying the attributes for the set of created components in the hydraulic system, wherein the component information is any one or more of: operating parameters; heat coefficients; reliability indices; relationships between components; effects of components being connected to other components; and/or performance constraints, and the attributes for the components are information about performance of each component; wherein: the set of created components comprises a set of tubes and wherein an attribute in the attributes comprises a coefficient of resistance for each bend in the set of tubes; and the step of identifying the attributes for the set of created components in the hydraulic system comprises: identifying a radius of bend for an outside diameter for a bend in a tube in the set of tubes; identifying a bend angle for the bend; and calculating the coefficient of resistance for the bend using the radius of bend and the bend angle; generating the fluid system model by using the identified attributes; and performing a fluid flow analysis of the hydraulic system using the fluid system model and a particular analysis application for simulating fluid flow in the fluid system model, and using the generated fluid system model and the fluid flow analysis to manufacture a component that is used in service or repair of the physical aircraft that is based on the aircraft in the model. the set of created components comprises a set of tubes and wherein an attribute in the attributes comprises a coefficient of resistance for each bend in the set of tubes; and the step of identifying the attributes for the set of created components in the hydraulic system comprises: identifying a radius of bend for an outside diameter for a bend in a tube in the set of tubes; identifying a bend angle for the bend; and calculating the coefficient of resistance for the bend using the radius of bend and the bend angle; identifying a radius of bend for an outside diameter for a bend in a tube in the set of tubes; identifying a bend angle for the bend; and calculating the coefficient of resistance for the bend using the radius of bend and the bend angle; generating the fluid system model by using the identified attributes; and performing a fluid flow analysis of the hydraulic system using the fluid system model and a particular analysis application for simulating fluid flow in the fluid system model, and using the generated fluid system model and the fluid flow analysis to manufacture a component that is used in service or repair of the physical aircraft that is based on the aircraft in the model.