In questa sezione troverete i lavori presentati alle Conferenze mondiali COMSOL. Le presentazioni descrivono ricerche e prodotti innovativi progettati con COMSOL Multiphysics da colleghi di tutto il mondo. I temi delle ricerche presentate abbracciano un'ampia gamma di settori produttivi e aree applicative, in ambito elettrico, meccanico, fluidodinamico e chimico. Lo strumento di Ricerca Rapida vi permetterà di trovare le presentazioni che si riferiscono all'area di vostro interesse.

Numerical Modeling of Solvent Enhanced Water Flooding

M. Chahardowli [1], R. Farajzadeh [2], H. Bruining [1],
[1] Delft University of Technology, Delft, The Netherlands
[2] Shell Global International Solutions, Den Haag, The Netherlands

Mutually soluble-solvents can improve the ultimate recovery in conventional reservoirs. Initially, the solvent moves with the imbibing aqueous phase into the reservoir. However, upon contact with oil, diffusion occurs and the solvent is transported in the oleic phase. Through the migration of the mutually soluble component from the aqueous phase into the oleic phase, oil properties and/or rock ...

Effect of Area of the Reaction Surface on the Capture Efficiency of Immunosensors

D. Rath [1], S. Panda [1],
[1] Indian Institute of Technology, Kanpur, India

With the progress of immunosensing technology, the detection of diseases at early stages is feasible using surface based heterogeneous immunosensors [1]. Literature contains few reports where it is verified that reaction spot of smaller size leads to high fractional occupancy of targets, specifically applicable to the microarray technology [2]. Such enhancement in capture efficiency by the ...

方便餐盒微波加热特性研究

宋春芳 [1], 王燕 [1], 金光远 [1], 崔政伟 [1],
[1] 江南大学,无锡,江苏,中国

方便餐盒微波加热特性研究 宋春芳※ 王燕 金光远 崔政伟   (江苏省食品先进制造装备技术重点实验室,江南大学机械工程学院,江苏,无锡,214122) 摘要:本文采用 COMSOL Multiphysics® 建立了电磁与传热耦合的仿真模型,研究方便餐盒微波加热传热特性规律,模型包括加热腔、波导以及可旋转的转盘和物料,通过比较不同转速对仿真结果的影响,选用 7.5rpm 作为转盘转速。研究结果表明,微波功率为 700W,90s 的微波加热后,方便餐盒空间温度场分布和瞬态温度曲线与实验结果基本保持一致,微波仿真模型可行,研究结果为方便餐盒的微波快速加热及工业化生产与加工提供一定的理论依据。 关键词:微波;仿真;转盘;传热 ...

Numerical Analysis Of Entry Length In Cleaning Test Rig

N. Nordin [1]
[1] Universiti Putra Malaysia, Malaysia

Fouling and cleaning processes present a major impact to the manufacturing industry in terms of economics, product quality, product safety, and plant efficiency. An efficient cleaning process is essential is order to remove fouling to maintain quality and safety of production process as well as the product. Thus, cleaning should be done with minimum cost and time, and understanding soil ...

CFD Analysis of Loss Of Vacuum Accident for Safety Application in Experimental Fusion Reactor Facility

C. Bellecci[1], P. Gaudio[1], I. Lupelli[1], A. Malizia[1], M.T. Porfiri[2], R. Quaranta[1], and M. Richetta[1]

[1]EURATOM, Faculty of Engineering, University of Rome “Tor Vergata”, Roma, Italy
[2]ENEA Nuclear Fusion Tecnologies, Frascati, Roma, Italy

In an experimental nuclear fusion facility dust is generated both during normal machine operations and by macroscopic erosion of the plasma facing materials due to intense thermal loads. This dust can be mobilized by air ingress in case of LOVA (Loss of Vacuum Accident) threaten safety of workers and public. A small facility, Small Tank for Aerosol Removal and Dust (STARDUST), was set up in ...

Modelling of Melt Cast Cooling and Solidification Processes for Explosives

P. Lamy-Bracq[1] and C. Coulouarn[1]
[1]Nexter Munitions, Tarbes, France

A solidification process of casting explosives in shell is studied in this paper. An enthalpy method approach is used to model the solidification process. Both the thermal and mechanical effects are taken into account. An ALE (Arbitrary Lagrangian-Eulerian) method is used to represent the physical deformation due to solidification. Results from the model are verified against experimental ...

COMSOL Multiphysics® Version 4

Svante Littmarck
President and CEO, COMSOL

Svante Littmarck is the CEO of the COMSOL group. He co-founded COMSOL in 1986. He holds a M.Sc. in Applied Mathematics from the Royal Institute of Technology in Stockholm. In 2004 he received an honorary doctoral degree from the Royal Institute of Technology.

Quench Propagation in 1-D and 2-D Models of High Current Superconductors

G. Volpini[1]
[1]LASA Lab., Milan Dept., Istituto Nazionale di Fisica Nucleare, Milano, Italy

The understanding of quench, or the sudden transition to the normal state of a high-current Superconductor (SC), is fundamental for the design of a SC magnet, and it is widely discussed in the literature. This paper presents some simple COMSOL models, which are compared with well-known approximate formulae and some experimental results. These models allow a more precise description than it is ...

Use of COMSOL as an Educational Tool Through its Application to Ground Water Pollution

A. Modaressi-Farahmand-Razavi[1]
[1]MSS-Mat Laboratory, CNRS, Ecole Centrale Paris, Châtenay Malabry, France

Ensuring the quality of underground water and controlling its quantity is of major concern for the population. Therefore, this subject attracts many students from different specialties at different levels of their curriculum. In fact, the pedagogic objectives of the course may be different according to the level or/and interest of the students and COMSOL is used due to its versatility. In this ...

COMSOL Derived Universal Scaling Model For Low Reynolds Number Viscous Flow Through Microfabricated Pillars – Applications to Heat Pipe Technology

N. Srivastava[1], and C.D. Meinhart[1]
[1]Department of Mechanical Engineering, University of California Santa Barbara, Santa Barbara California, USA

Cooling of high-power density electronic devices remains a challenge. Microfluidic heat-pipes with the potential of achieving ultra-high thermal conductivities offer a low-cost technology for cooling electronics. To achieve high thermal conductivity, it is critical to maximize the rate of liquid transport inside the heat pipe. We propose a novel array of microfabricated pillars to maximize ...

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