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abstract indexed · arXiv 2609.28558 · updated 2026-10-18

CFD Correction of Open Tip Clearance Flow in a Compressor Cascade Using VAE Latent Space Adaptation

First page of CFD Correction of Open Tip Clearance Flow in a Compressor Cascade Using VAE Latent Space Adaptation
From the original paper · arXiv 2609.28558Page 1. Select the image to read the PDF.

The method replaces modifying the RANS solver or constructing artificial high-resolution experimental labels by freezing a VAE trained on 166 CFD loss fields and fitting only a low-rank latent adapter from 12 paired CFD-experiment conditions via an observation operator. Cost is moderate: one VAE training pass plus a small adapter fit, all feasible on a single GPU, but it requires an existing parametric CFD dataset and paired sparse measurements. It can fail outside the sampled parameter space, the 12-fold cross-validation on 12 conditions is weak evidence of generalization, and correctness is only enforced at sparse measurement windows, so unobserved field regions may remain physically wrong.

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VAE latent-space adaptation for CFD field correction
published
2026-09-23

This is a scientific-computing surrogate correction method for compressor aerodynamics, not an LLM inference, training, or agent technique, so it falls outside the reader's production adoption scope despite being computationally inexpensive.

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    The method replaces modifying the RANS solver or constructing artificial high-resolution experimental labels by freezing a VAE trained on 166 CFD loss fields and fitting only a low-rank latent adapter from 12 paired CFD-experiment conditions via an observation operator. Cost is moderate: one VAE training pass plus a small adapter fit, all feasible on a single GPU, but it requires an existing parametric CFD dataset and paired sparse measurements. It can fail outside the sampled parameter space, the 12-fold cross-validation on 12 conditions is weak evidence of generalization, and correctness is only enforced at sparse measurement windows, so unobserved field regions may remain physically wrong.

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  2. claim 02Paperraft inference

    In 12-fold cross-validation, mean absolute error against experimental observations drops from 0.1335 to 0.0473 (about 2.8x), RMSE from 0.1717 to 0.0621, and relative L2 error from 0.5108 to 0.1871.

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arXiv 2609.28558

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