# Synergetic Effect of Wall-Slip and Compressibility During Startup Flow of Complex Fluids

Source: [Synergetic Effect of Wall-Slip and Compressibility During Startup Flow of Complex Fluids](<https://www.sota2.com/research/paper/68fa435c1e209131ce909603>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-25T04:16:20.982Z

Authors: Aniruddha Sanyal, Sachin Balasaheb Shinde, Lalit Kumar

Published: 2023-01-10T10:51:45.000Z

## Abstract

The present letter explains the synergetic effect of wall-slip, compressibility, and thixotropy in a pressurized flow startup operation of various structured fluids. Opposite to the intuition, experimental and numerical simulations suggest that the wall-slip (adhesive failure) is facilitating gel degradation (cohesive failure), revealing a new flow-startup mechanism. The thixotropic rheological model includes structural degradation kinetics at the bulk. Whereas, a static slip-based model addresses the near-wall phenomenon. The near-wall transient variations in axial velocity or strain evolution, and the initial pressure propagation mechanism along the axis of the circular pipe explain the essence of the aforementioned synergy.

## Recorded benchmark results

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/2301.03898>)

[PDF](<https://arxiv.org/pdf/2301.03898.pdf>)