基于数值模拟气液比对豆胶气泡雾化的影响

Effect of Air Liquid Ratio on Soy Protein Adhesive Effervescent Atomization with Numerical Simulation

根据气泡雾化理论,以豆胶为研究对象,对不同气液比豆胶与空气在气泡雾化喷嘴内部的流动情况进行了混合数值模拟。结果表明:试验条件下,气液比对气液在喷嘴内的流场分布有显著影响;雾化总能量,随气液比的增大而降低;气耗量,随气液比的增大而升高;最佳气液比为0.04。以混合模拟得到的出口数据为条件进行了仿真验证,结果表明:通过雾场仿真得到的最佳气液比,与混合模拟得到的理论最佳气液比值相吻合。

With soy protein adhesive, a hybrid numerical simulation was conducted to analyze the flow condition of soy protein adhesive and air inside the effervescent atomization nozzle by effervescent atomization theory.Under the experiment condi-tion, air liquid ratio （ALR） on gas and liquid in nozzle has remarkable effect on the flow field distribution.Atomization total energy decreases with the increase of ALR, gas consumption increases with the increase of ALR, and the best ALR is 0.04.With the export data of the hybrid simulation as a condition for the simulation experiment, the best ALR with spray field simulation is consistent with to that with hybrid simulation.