METHOD FOR 3D (THREE-DIMENSIONAL) PARAMETRIC SIMULATION OF FLOW PARTS OF CENTRIFUGAL PUMP HOUSING Russian patent published in 2017 - IPC F04D29/42 G06T17/00 

FIELD: machine engineering.

SUBSTANCE: method of implementing a comprehensive methodology, according to which in the process of building a 3D model of the flow of the centrifugal pump casing according to the given values of variable variable guide vanes and discharge create their parameterized CAD and grid model on the basis of which create a calculation model of the flow part of the pump housing and the base cross-sectional sketch of withdrawal from the given geometrical parameters and the rotation of the body on the basis thereof. Next, create describing spiral channel and transfer the sketch and produce cutting workpiece solid model using the resulting sketch. Also, create a sketch describing the profile of the ribs between the second spiral channel and transferable two-helix retraction, are formed by the resulting sketch edge in the solid model of the workpiece and create variable radius fillets for describing spiral channel and the transfer of bodies. Create sketches projection calculation section spiral and transfer channel and the outlet section of the diffuser sketch. Create a sketch of the diffuser body stretching and describing the profile of the blade guide vanes sketch form and multiply by the resulting sketch blades of the guide apparatus. In case of change of discharge parameters and the guiding unit is performed automatically rebuild the parametric model in accordance with the tree of its construction, according to which the first change form the workpiece, then the new position of taking the points corresponding to the heights of the spiral and the transfer channel, and splines associated with the vertices take a new position, forming bounding surface removal with the new parameters, resulting rebuilt blade and diffuser guide vanes. Carry out the calculation of three-dimensional flow in the flow part of the pump housing and the analysis of the results.

EFFECT: reduced costs for parametric 3D modeling of the flow of a centrifugal pump casing.

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