Transport-Layer Stability in a Neutron-Star Toy Model: A Reynolds-Modulated Sink Experiment

This work presents a numerical toy model exploring the stability of a transport layer in a neutron-star-like system. The model introduces a Reynolds-modulated sink representing transport-driven collapse in a compact object. The experiment investigates how transport intensity modifies the collapse strength while leaving the geometric position of the transition layer nearly unchanged. Numerical scans over Reynolds-like parameters show that transport processes primarily regulate the amplitude of the sink rather than the location of the transition radius. The study is intended as a conceptual transport experiment rather than a full microphysical neutron-star model. It isolates structural properties of transport–sink systems relevant to dense astrophysical media. All numerical experiments were generated using Python scripts included in the RTEG computational framework. The results may provide insight into transport-regulated structures in compact objects and contribute to the broader study of continuum transport processes in astrophysical systems.