Abstract
The article provides a analysis of pulsating water jets, utilizing three distinct head models. It research the impact of tool geometry on water velocity and pressure scientifically. The emergence of vortices due to increased flow through additional holes is identified as the primary cause of the observed pulsations. Laboratory tests contributed measured impulses at various pressures, revealing a direct correlation between longer impulses (ranging from 15 mm to 60 mm) and increased erosion potential. Notably, at 35 MPa, longer impulses exhibited a minor decrease in force deviation by 0.068. Additionally, the research indicates that pressure variations affect impulse frequencies: 0.55 ms at 15 MPa and approximately 1 ms at higher pressures, highlighting the dynamic nature of water streams based on applied pressures. The study emphasizes the exploitable aspects of self-excited pulsating heads, meticulously examining their design, parameter variations, and their impact on impulse generation. Such comprehensive research serves as a fundamental for enhancing the efficiency of surface pulsating water jet.