An Efficient CFD Approach for Modeling Spool Compressors Using Autonomous Meshing

October 19, 2022 10:30 AM – 11:30 AM CDT

Presented by:

Ameya Waikar, Research Engineer
Convergent Science

A spool compressor provides a novel rotating compression mechanism for use in residential and commercial air conditioning systems. To design a compressor optimized for efficiency, it’s essential to understand the complex interactions between the fluid flow and the moving components. Computational fluid dynamics (CFD) is a powerful tool for analyzing and designing compressors; however, spool compressor simulations present a number of challenges. The spool compressor’s interconnected components undergo both translation and rotation, and the valve motion is dependent on the flow field. These factors make the process of defining the computational grid on which the governing equations are solved highly non-trivial. In this webinar, we’ll discuss CONVERGE’s solution: autonomous meshing. A cut-cell-based automated meshing approach easily handles the moving geometry, and Adaptive Mesh Refinement dynamically adjusts the mesh throughout the simulation to efficiently capture the relevant physics. Furthermore, CONVERGE’s fluid-structure interaction modeling accurately accounts for the interactions between the valves and the flow field. We’ll validate this model against measured data for efficiency and flow rates, and demonstrate how you can apply this approach to gain insight into important phenomena such as pressure fluctuations, valve lifts, and flow across the vane tip. CONVERGE’s autonomous meshing speeds up the procedure for analyzing compressors, enabling faster turnaround on design decisions.

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