(1.大連大學(xué)化學(xué)與化學(xué)工程系，大連 116622;
2.東北大學(xué)資源與環(huán)境工程系， 沈陽(yáng) 110006)
摘 要: 從BBO方程求解水力旋流器內(nèi)顆粒與流體的相對(duì)運(yùn)動(dòng)是一項(xiàng)新的嘗試。 通過(guò)求解BBO方程， 給出了描述水力旋流器內(nèi)固體顆粒與流體介質(zhì)相對(duì)運(yùn)動(dòng)的跟隨性指標(biāo)。結(jié)果表明，在忽略重力影響的前提下，顆粒在切向及軸向與流體具有相同的跟隨特性； 而由于離心力的存在， 顆粒在徑向的運(yùn)動(dòng)將明顯有別于流體介質(zhì)。 根據(jù)跟隨性指標(biāo)η， φ的數(shù)學(xué)表達(dá)式，可以定量地考察諸如顆粒性質(zhì)、流體特性、空間位置、湍流頻率等因素對(duì)顆粒運(yùn)動(dòng)的影響。
關(guān)鍵字: 關(guān)鍵詞: 水力旋流器 顆粒運(yùn)動(dòng) BBO方程
PART I: PARTICLE MOTION EQUATION AND ITS SOLUTION
（ Department of Chemical Engineering, Dalian University, Dalian 116622, P. R. China
* Department of Resources and Environment Engineering, Northeastern University, Shenyang 110006, P. R. China）
Abstract:A new approach to the relative motion of solid particles with fluid medium in hydrocyclones was presented. By resolving BBO equation , some parameters describing the lags between particles and medium was derived and analyzed. These parameters show that the relative motion in both tangential and vertical directions can be neglected if the gravity is not considered, but in the radial direction, the motion of particles is apparently different from that of the medium. According to the derived parameters, a series of factors including particle natures, space position, flow field characteristics as well as turbulence frequency may be investigated qualitatively, but the detail will be reported in t he following issues of the magazine.
Key words: hydrocyclones particle motion BBO equation
