1、 General Optimize your mixing process and food quality by using CFD.White paper CFD,computational fluid dynamics,is a powerful computer tool for simulating flows in processing equipment General Publisher Tetra Pak Processing Systems AB SE 221 86 Lund,Sweden Published February 2017 Tetra Pak Internat

2、ional S.A No part of this publication may be duplicated in any form without the source being indicated.3 CONTENTS Introduction _ 4 Who is this booklet for?_ 4 Background _ 5 What is CFD?_6 A comparison of physical and virtual experiments _ 7 Validation before running computer simulations in the desi

3、gn of mixers _8 The mixing challenge _9 Tetra Paks procedure for creating a validated virtual mixer _ 11 Validation step 1:Rotor-stator region _ 11 Validation step 2:Tank flow _ 12 Validation step 3:Very high-viscous fluid _ 13 How Tetra Pak uses the validated virtual mixer _ 14 Benefits of using CF

4、D in the food processing industry _ 15 Tetra Pak your mixing partner_ 16 4 INTRODUCTION Who is this booklet for?Plant managers,who want to discover how a reliable mixer design can be obtained by employing computational fluid dynamics(CFD),and who also want to learn how this tool reduces time,and the

5、reby cost,and increases quality.R&D managers,who need to consider food quality parameters in their production processes and want to know more about how mixing challenges are worked around in the design phase.Engineers in the food industry,who are interested in different mixers and want to know more

6、about how a reliable mixer is designed.5 Background Most applications in the food industry include mixing.In order to achieve the desired product quality,the whole volume of product should be optimally mixed,and the mixer should not impact the fluids in ways that might jeopardize the final result.In