comsol mini course - Multiphysics COMSOL V ERSION 3.3a...

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C OMSOL M ultiphysics V ERSION 3.3a Chemical Engineering Module Minicourse
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How to contact COMSOL: Benelux COMSOL BV Röntgenlaan 19 2719 DX Zoetermeer The Netherlands Phone: +31 (0) 79 363 4230 Fax: +31 (0) 79 361 4212 info@femlab.nl www.femlab.nl Denmark COMSOL A/S Diplomvej 376 2800 Kgs. Lyngby Phone: +45 88 70 82 00 Fax: +45 88 70 80 90 info@comsol.dk www.comsol.dk Finland COMSOL OY Arabianranta 6 FIN-00560 Helsinki Phone: +358 9 2510 400 Fax: +358 9 2510 4010 info@comsol.fi www.comsol.fi France COMSOL France WTC, 5 pl. Robert Schuman F-38000 Grenoble Phone: +33 (0)4 76 46 49 01 Fax: +33 (0)4 76 46 07 42 info@comsol.fr www.comsol.fr Germany FEMLAB GmbH Berliner Str. 4 D-37073 Göttingen Phone: +49-551-99721-0 Fax: +49-551-99721-29 info@femlab.de www.femlab.de Italy COMSOL S.r.l. Via Vittorio Emanuele II, 22 25122 Brescia Phone: +39-030-3793800 Fax: +39-030-3793899 info.it@comsol.com www.it.comsol.com Norway COMSOL AS Søndre gate 7 NO-7485 Trondheim Phone: +47 73 84 24 00 Fax: +47 73 84 24 01 info@comsol.no www.comsol.no Sweden COMSOL AB Tegnérgatan 23 SE-111 40 Stockholm Phone: +46 8 412 95 00 Fax: +46 8 412 95 10 info@comsol.se www.comsol.se Switzerland FEMLAB GmbH Technoparkstrasse 1 CH-8005 Zürich Phone: +41 (0)44 445 2140 Fax: +41 (0)44 445 2141 info@femlab.ch www.femlab.ch United Kingdom COMSOL Ltd. Studio G8 Shepherds Building Rockley Road London W14 0DA Phone:+44-(0)-20 7348 9000 Fax: +44-(0)-20 7348 9020 info.uk@comsol.com www.uk.comsol.com United States COMSOL, Inc. 1 New England Executive Park Suite 350 Burlington, MA 01803 Phone: +1-781-273-3322 Fax: +1-781-273-6603 COMSOL, Inc. 10850 Wilshire Boulevard Suite 800 Los Angeles, CA 90024 Phone: +1-310-441-4800 Fax: +1-310-441-0868 COMSOL, Inc. 744 Cowper Street Palo Alto, CA 94301 Phone: +1-650-324-9935 Fax: +1-650-324-9936 info@comsol.com www.comsol.com For a complete list of international representatives, visit www.comsol.com/contact Company home page www.comsol.com COMSOL user forums www.comsol.com/support/forums COMSOL Multiphysics. Chemical Engineering Module Minicourse © COPYRIGHT 1994–2007 by COMSOL AB. All rights reserved Patent pending The software described in this document is furnished under a license agreement. The software may be used or copied only under the terms of the license agreement. No part of this manual may be photocopied or reproduced in any form without prior written consent from COMSOL AB . COMSOL, COMSOL Multiphysics, and COMSOL Script are trademarks of COMSOL AB. Other product or brand names are trademarks or registered trademarks of their respective holders. Version: April 2007 COMSOL 3.3a
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CONTENTS | i CONTENTS Preface 2 Introduction 3 Dimerization in a Tubular Reactor 4 Key Instructive Elements . . . . . . . . . . . . . . . . . . . . 5 Modeling Strategy . . . . . . . . . . . . . . . . . . . . . . 5 Geometry . . . . . . . . . . . . . . . . . . . . . . . . . 5 Modeling in COMSOL Multiphysics . . . . . . . . . . . . . . . . 6 Expanding Fluid Flow . . . . . . . . . . . . . . . . . . . . . 7 Convection and Diffusion in Multicomponent Systems. . . . . . . . . 9 Reaction rate . . . . . . . . . . . . . . . . . . . . . . . . 11 Non-Isothermal Model . . . . . . . . . . . . . . . . . . . . 22 Transient Analysis of a Startup Sequence . . . . . . . . . . . . . . 28 As you can see, after approximately 150 seconds the process seem to have reached steady-state. 32 Mass Transfer in a Stirred Batch Reactor 33 On Rotating Machinery . . . . . . . . . . . . . . . . . . . . 34 On Assemblies. . . . . . . . . . . . . . . . . . . . . . . . 34 Problem Definition . . . . . . . . . . . . . . . . . . . . . . 34 Model Definition . . . . . . . . . . . . . . . . . . . . . . . 35 Results and Discussion. . . . . . . . . . . . . . . . . . . . . 37 Modeling Using the Graphical User Interface . . . . . . . . . . . . 40 Residence Time in a Turbulent Reactor 46 Introduction . . . . . . . . . . . . . . . . . . . . . . . . 46 Key Instructive Elements . . . . . . . . . . . . . . . . . . . . 47
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comsol mini course - Multiphysics COMSOL V ERSION 3.3a...

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