Weiqun Liang

Dynamic modulation of pressure waveforms on slurry penetration in swirl pulsating grouting: performance evaluation and fluid-mechanical mechanisms

Although dynamic pressure grouting mitigates particle clogging, the mechanisms of different pressure waveforms on slurry penetration remain elusive. This study proposes a swirl pulsating pressure grouting (SPPG) technique and establishes a three-dimensional transient two-phase fl...

A Swirl-Driven Grouting Control Method for Non-Newtonian Fluids: 2.5D Seepage Model and Stability Analysis of Fractal-like Viscous Fingering

In porous media grouting, highly viscous non-Newtonian fluids often trigger viscous fingering (Saffman–Taylor instability) due to adverse mobility ratios, creating fractal-like preferential channels that severely weaken the reinforcement volume. To overcome this, a novel swirl-dr...