(遼寧工程技術(shù)大學(xué)資源與環(huán)境工程學(xué)院，阜新 123000)
摘 要: 從固體顆粒加速期間清水與固體顆粒的速度變化、動量傳遞、相關(guān)質(zhì)量等基本問題分析入手，研究了沉降性漿體在水平管道內(nèi)流動時其固體顆粒在3種流動狀態(tài)下的水力坡度，提出了沉降性漿體在水平管道內(nèi)流動的機(jī)理模型，進(jìn)而用該模型對一些輸送條件下的沉降性漿體的水力坡度進(jìn)行了計算。對實際問題的理論計算結(jié)果與實測結(jié)果的對比分析表明，該模型能比較精確地預(yù)計上述幾種流動狀態(tài)下水平管道內(nèi)沉降性漿體的水力坡度。
關(guān)鍵字: 沉降性漿體 附加壓力 干涉力 水力坡度
（Institute of Resources and Surrounding Engineering,Liaoning Technology University, Fuxin 123000, P. R. China）
Abstract:The hydraulic gradients of settling slurry flow transported in three kinds of moving states, i. e. suspension, saltation, or partial ly suspension were investigated, based on analyzing the changes of solid particles and water in momentum, velocity and their mass related to mome ntum exchanging over the acceleration period of the solid particles. Then a new mechanism model was proposed about the hydraulic gradient of settling slurry flow in horizontal pipe and a number of hydraulic gradients of settling slurry flow were calculated, the results of the hydraulic gradient and the analyses about the comparison between the calculated and the experimental results enunciated that the hydraulic gradient of settling slurry flow flowing in these states mentioned above can be accurately expected in the new model.
Key words: slurry additional pressure interference force hydraulic gradient
