T. Hummel , P. Romero , M. Schulze , B. Schuermans , T. Sattelmayer ,
 Lehrstuhl für Thermodynamik, TU München, Germany
 GE Power, Switzerland
Modern gas turbine systems for power generation are prone develop so-called thermosacoustic instabilities in the combustion chamber. Physically, these instabilities emerge as large amplitude pressure oscillations within the combustor, which are caused by constructive feedback interactions between the flame and the combustor's natural acoustic modes. The oscillations disturb the combustion ...
A. Rabehi , H. Kokabi , L. Chen , K. A. Ngo , H.-J. Krause 
 Sorbonne Universités, Laboratoire d’Electronique et Electromagnétisme, Paris, France
 Peter Grünberg Institute, Bioelectronics, Forschungszentrum Jülich, Germany
 Sorbonne Universités, Laboratoire Interfaces et Systemes Electrochimiques (LISE), Paris, France
In a first approach towards application of the magnetic frequency mixing technique to microfluidic structures, microplanar coils have to be designed along with sample reservoir. For this, a COMSOL Multiphysics® electrical model along with an analytical calculation is used in order to optimize the dimensions of the coil. This is to ensure a proper distribution and value of magnetic flux density ...
A. N. Kolborg ,
 Technical University of Denmark, Lyngby, Denmark
This project makes a first attempt at modelling fluid flow over shark skin on a microscopic level. The modeled fluid flow shows good agreement with theory. Further refinement of the model parameters holds promises of better understanding of this complex fluid flow phenomenon. The COMSOL Multiphysics® model was evaluated against micro particle image velocimetry measurements of the same flow ...
A COMSOL Multiphysics® Software Analysis of Beam Tube Cooling in the High Flux Isotope Reactor of ORNL
J. D. Freels ,
 Research Reactors Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
Previous to the present work, a formal calculation was approved [1,2] to support the operation of the High Flux Isotope Reactor (HFIR) Horizontal Beam-Tube 1 of 4 (HB-1). The present calculation [3,4] repeats the previous work using COMSOL Multiphysics® software and extends the analysis to cover a broader range of coolant flow. In addition, this new calculation expands the analysis much further ...
J. Knox ,
 Marshall Space Flight Center - NASA, Huntsville, AL, USA
This work examined in detail the a priori prediction of the axial dispersion coefficient from available correlations versus obtaining it and also mass transfer information from experimental breakthrough data and the consequences that may arise when doing so based on using a 1-D axially dispersed plug flow model in COMSOL Multiphysics® software and its associated Danckwerts outlet boundary ...
J. Bergstrom , N. Elabbasi ,
 Veryst Engineering, Needham, MA, USA
The use of thermoplastic materials is increasing and it is becoming more important during the design process to accurately represent the non-linear material response in relevant loading conditions. The COMSOL Multiphysics® software supports advanced modeling capabilities for large deformation analyses, including contact and multiphysics couplings. It is now also possible to use advanced non ...
Coupled Computational Fluid Dynamics (CFD) and Artificial Neural Networks (ANNs) for Prediction of Thermal-hydraulic Performance of Plate-fin-tube Heat Exchangers
W. Yaici , E. Entchev 
 Renewable Energy, Heat and Power Laboratory, CanmetENERGY Research Centre, Natural Resources Canada, Ottawa, ON, Canada
Plate fin-tube heat exchangers are used extensively in heating, ventilating, and air conditioning, process engineering, and refrigeration systems. They have a high degree of surface compactness. Substantial heat transfer enhancement is obtained as a result of the periodic starting and development of boundary layers over interrupted channels formed by the fins and their dissipation in the fin ...
N. Chen , V. Bedekar ,
 Middle Tennessee State University, Murfreesboro, TN, USA
The objective of this research is to design a millimeter scale broadband energy harvester device through the use of a multi-cantilever beam approach with a non-linear geometry. In this research, we use COMSOL Multiphysics® software to design, simulate and analyze the voltage and power characteristics under applied mechanical vibrations of a piezoelectric cantilever beam. One piezoelectric ...
F. Akpinar , B. Cohen , J. Tabora , A. Glace , K. Lauser , F. Lora Gonzalez , J. Albrecht ,
 Bristol-Myers Squibb, New Brunswick, NJ, USA
Manufacturing of pharmaceutical drug substances involves chemical unit operations that are dependent on effective mixing, particularly reactions and crystallizations. Poor mixing can cause uneven distribution of chemical species in stirred tanks, leading to impurity formation and decrease in selectivity during reactions, and localized supersaturation, uncontrolled nucleation, impurity entrapment ...
M. Yang, A. Young, and B. Crittenden
Department of Chemical Engineering University of Bath, Bath, United Kingdom
A small batch stirred cell which is operated at temperatures up to 400 °C and pressures up to 30 bar is used to study fouling behaviors of selected crude oils. COMSOL Multiphysics package is used for the CFD (Computational Fluid Dynamics) and heat transfer modeling for this stirred cell system. The simulation results are validated against the measured temperature data at various axial ...