%0 Journal Article
%T Applying Computational Fluid Dynamics Modelling for Investigating Conical Reverse-Flow Cyclone Skai iuojamosios fluid  dinamikos modeliavimo taikymas k迂giniam gr  tamojo srauto ciklonui tirti
%A Inga Jakˋtonienˋ
%A Petras Vaitiek迂nas
%J Science 每 Future of Lithuania
%D 2009
%I Vilnius Gediminas Technical University
%R 10.3846/167
%X The problem of the efficiency of cyclones, devices for separating heavy particles from their carrying fluid, is examined. A review of experimental and theoretical papers is conducted introducing three dimensional differential equations for transfer processes and the Reynolds stress model of turbulence. The paper describes the numerical modelling of the swirling fluid flow in the conical reverse-flow cyclone the height of which is 0.50 m and diameter 每 0.20 m. The governing fluid flow equations are solved using the finite volume method in a body-fitted coordinate system. A reasonable agreement between the presented results of numerical calculations (inlet velocity - 4.64 m/s and fluid flow rate - 0.28 m3/s) and experimental and numerical data obtained by other authors is found (mean relative error did not exceed ㊣ 5%).  Article in Lithuanian Nagrin jama ciklon , skirt  kietosioms dalel ms atskirti i  oro srauto, efektyvumo problema. Ap velgti eksperimentiniai ir teoriniai darbai. Pateiktos trimat s perna os diferencialin s lygtys su Reinoldso  tempi  turbulencijos ir kitais modeliais. Atliktas skaitinis oro srauto jud jimo modeliavimas k迂giniame gr  tamojo srauto (KGS) ciklone, kurio auk tis 每 0,50 m, cilindrin s dalies auk tis - 0,29 m, k迂gin s - 0,133 m, skersmuo - 0,20 m. Modeliuojant apra ytas oro srauto jud jimas ciklone taikant Navj  ir Stokso trima i  diferencialini  lyg i  sistem , diskretizuot  baigtiniais t迂riais. Modeliavimo rezultatai, kai  tek jimo greitis 每 4,64 m/s ir debitas 每 0,28 m3/s, neblogai sutapo su kit  autori  vykdyt  eksperiment  rezultatais. Gauta vidutin  santykin  paklaida - ㊣5 proc.  Straipsnis lietuvi  kalba
%K cyclone
%K solid particles
%K numerical modelling
%K computational fluid dynamics
%K turbulence
%U http://www.mla.vgtu.lt/index.php/mla/article/view/167