Turbomachine Mesh Pressure Field Transposition
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Solution Overview
Problem
Current methods for modeling turbomachine parts require extensive time and expertise to associate pressure values with mesh faces, making it costly and inefficient to modify mesh surfaces, as surface pressure fields are not adaptable to changes in mesh structure.
Innovation Solution
A method to transpose a surface pressure field from one mesh to another by calculating pseudo-pressure values at vertices and edges of the first mesh, using a thermal field interpolation tool to generate corresponding values on a second mesh, allowing for selective calculations on free and internal faces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a surface pressure field is regenerated by specialized experts after mesh modification, then the accuracy and adaptability of the pressure field to the new mesh is improved, but the time and cost required increases significantly
Solution Approach 1:
The patent creates a copy of the pressure field data from the first mesh and transposes it to the second mesh through automated computational steps rather than regenerating the entire field from scratch. This involves mapping pressure values from faces of the first mesh to corresponding locations in the second mesh, significantly reducing the time and expertise required while maintaining acceptable accuracy
Solution Approach 2:
The patent performs preliminary calculations by first computing pseudo-pressure values at vertices and edges of the first mesh before transposing to the second mesh. This preliminary processing of the original pressure field data enables faster adaptation to the new mesh configuration without requiring complete regeneration by experts
2Manufacturing precision
If the mesh is modified to improve modeling quality, then the representation accuracy of the part is improved, but the surface pressure field becomes incompatible and requires complete regeneration
Solution Approach 1:
The patent implements a dynamic adaptation process where the pressure field automatically adjusts to mesh modifications. Instead of a static pressure field tied to a specific mesh configuration, the system enables the pressure field to be transposed to different mesh configurations through automated computational steps, making it adaptable to various mesh modifications without requiring expert regeneration
Solution Approach 2:
The patent creates a universal pressure field representation that can be applied to multiple different mesh configurations. By transposing the pressure field from the first mesh to the second mesh using automated methods, the same pressure field data becomes adaptable to different mesh structures, eliminating the need for separate expert regeneration for each mesh modification
3Manufacturing precision
If specialized experts manually associate pressure values with mesh faces, then the accuracy of the pressure field is improved, but the complexity and cost of the process increases
Solution Approach 1:
The patent replaces the manual mechanical process of expert association with an automated computational system. Instead of experts manually mapping pressure values to mesh faces, the system uses automated algorithms to calculate pseudo-pressure values at vertices and edges and transpose them to the target mesh, significantly reducing process complexity while maintaining accuracy
Solution Approach 2:
The patent introduces pseudo-pressure values at vertices and edges as intermediary elements between the original face-based pressure field and the target mesh. These intermediary values serve as a bridge that enables automated transposition of the pressure field without requiring direct manual association, simplifying the overall process while preserving accuracy
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach significantly reduces the time and cost associated with mesh modifications, enabling fast and inexpensive adaptation of surface pressure fields to new mesh configurations, from several weeks to under 30 minutes.
Implementation Method 1
transposing the pseudo-pressure values calculated in step a) from the first mesh to the second mesh by a thermal field interpolation tool, so as to generate pseudo-pressure values at vertices and/or edges of the second mesh
Data Source
AI summary
A computer-implemented method includes calculating first pseudo-pressure values at vertices or edges of a first mesh modeling a turbomachine part, the calculation being based on input pressure values of a surface pressure field that are respectively associated with free faces of the first mesh, transposing the first pseudo-pressure values from the first mesh to a second mesh different from the first mesh by an interpolation tool to generate second pseudo-pressure values, and calculating output pressure values associated with free faces of the second mesh based on the second pseudo-pressure values. The first and second meshes each define free faces representative of free surface portions of the part, and internal faces representative of zones crossing the part, and all the first pseudo-pressure values are associated with only free faces of the first mesh or all the output pressure values are associated with only free faces of the second mesh.