Numerical Simulation Study on the Influence of Twist Tape Parameters on Hydrate Particle Deposition

Numerical simulation is used to carry out research on the swirl flow transportation of a hydrate in pipeline under condition whole rotation twist tape using DPM (discrete phase modeling) and RNG (renormalization group) k-ε. The influence different parameters number concentration distribution particles analyzed. structure are optimized, based efficiency evaluation gas-solid two-phase pipeline. Finally, compared with working conditions: local an ordinary results show that areas high near tapes, leeward side tapes higher than windward side. minimum area at axial position gradually increases increase distance, do not deposit bottom pipe section. placement angle greater, particle also larger. best 25°. Under constant strength, range will indefinitely, it when height D/6 optimal D/6. There should be too many as this affect carrying effect. three. distance generation about double pipe. four pipes 3.5 times greater 6.6 effect 89% pipes. 230% generation. 560%