IX International Conference on Computational Heat and Mass Transfer

ICCHMT 2016

23-26 May 2016, Cracow, Poland
under the Honorary Patronage of Jacek Majchrowski, Mayor of the City of Cracow

Honorary member
Prof. Dr-Ing. Habil. Ulrich Gross


Technische Universität Bergakademie Freiberg, Freiberg, Germany
Editor-in-Chief of International Journal of Thermal Sciences


University Education
Study of Mechanical Engineering, Stuttgart University, Germany; achieved Degrees:
  • 1977 Dipl.-Ing.
  • 1983 Dr.-Ing. (PhD)
  • 1990 Dr.-Ing. habil.

Career and Current Position
  • 1977 – 1992 Stuttgart University, Institut für Thermodynamik und Wärmetechnik
  • Since 1992 Technische Universität Bergakademie Freiberg Full Professor (Thermodynamics and Heat Transfer)
  • 1994 – 1996 Dean of the Faculty
  • Since 1996 Director of the Institute of Thermal Engineering
  • 1996 – 1999 Founding Director of the University Centre of Environmental Research
  • 1999 – 2006 Scientific Director of the DBI-GTI GmbH („Deutsches Brennstoffinstitut – Gastechnologisches Institut GmbH Freiberg“)
  • 2010 – 2014 Board of Trustees of the University

Further Professional Activities and Awards
  • VDI - Committee for Heat and Mass Transfer: since 1995
  • International Centre for Heat and Mass Transfer: Scientific Council: since 1998 (Executive Committee from 1998 to 2002)
  • Academy of Sciences at Leipzig: since 1999 (board member from 2001 to 2004)
  • German Academy of Science and Engineering (Acatech): since 2002
  • German Gas Association (East-branch): board of directors from 2000 to 2006
  • Research Council of the German Gas Association: from 1999 to 2006
  • German Science Foundation: Review Board (Thermal Engineering) from 2004 to 2012
  • Assembly for International Heat Transfer Conferences: German Delegate since 2006
  • Weisbach-Award for Excellence in Teaching (2008)
  • Honorary Member of the Academic Senate (2015)

Editorship
  • International Journal of Thermal Sciences (Elsevier): Editor-in-Chief since 2002
  • International Journal of Energy & Technology: Assoc. Editor since 2014

Research area
Measurement and modeling of thermophysical properties of substances, in particular :
  • Thermal conductivity of liquids and gases
  • Thermal conductivity of metals and metal melts
  • Effective thermal conductivity of porous bulk materials and textured materials, especially at temperatures up to 2000°C
Heat and mass transfer in single and two- phase systems
  • Behavior pure substance near the critical state
  • Evaporation and condensation ( experimental tests )
  • Heat exchanger design ( computer aided design )
  • Modelling of radiation



Professor Tao Wen-Quan


Professor Tao Wen-Quan was born in March1939 in Shaoxing, Zhejiang province, was admitted in Xi’an Jiaotong University in 1957 and graduated in 1962, got the master degree of Xi'an Jiaotong University under the supervision of Professor Yang Shiming in 1966 and then stayed to teach. During 1980 to 1982, he studied at the Heat Transfer Laboratory in the Department of Mechanical Engineering in University of Minnesota under the guidance of Prof. EM Sparrow. As the professor of Energy and Power Engineering and doctoral tutor of Xi'an Jiaotong University, he was even awarded one of the first session National Famous Teachers in 2003 and elected the academician of the Chinese Academy of Sciences in 2005.

Professor Tao Wen-Quan has long been engaged in teaching and research on the theory of heat transfer and the numerical simulation and engineering applications of heat transfer, making great contribution to the numerical simulating format and algorithm in the term of incompressible fluid flow field, which have promoted and facilitated the formation and development of computational heat transfer subject. During the past 10 years, he has led the research team carrying out the simulating study on multiscale flow and heat transfer problems, and achieved remarkable results. This team has become one of the international advanced teams in multi-scale simulation of the heat transfer industry. He was specially invited to make a speech on multiscale simulation of flow and heat transfer in the international conference of heat transfer in 2010 and of the USASME micro and nano flow and heat transfer in 2013. In terms of enhanced heat transfer, he proposed and developed a number of new technologies to efficiently improve heat transfer and get them into engineering applications. He has won the second award of the National Natural Science and the National Invention as well as the special prize, first prize and second prize of the National Teaching Achievement Awards, a total of six awards (4 as the leader, 2 as the second participant) .He is currently appointed as associate editor by 3 international journals including International Journal of Heat Mass Transfer, ASME Journal of Heat Transfer, International Communications in Heat Mass Transfer.

Application of VOSET for Simulations of Boiling Heat Transfer

Tao, Wen-Quan and He, Ya-Ling
Key Laboratory of Thermo-Fluids Science & Engineering
State Key Laboratory of Multiphase Flow and Heat Transfer
School of Energy & Power Engineeing
Xi’an Jiaotong University, Xi’an, Shaanxi 710049, China

Abstract:

In this keynote lecture boiling heat transfer is simulated by an interface capture method, AdamVOSET, which is a hybrid method of VOF and level-set method. The VOSET method is first briefly introduced. It is well-known that the original level set approach has one severe disadvantage in that conservation of liquid mass can not be guaranteed, even though the surface curvature can be accurately determined. The VOF method can well satisfy the mass conservation requirement. However, it is difficult to obtain an accurate curvature and to smooth the discontinuous physical quantities near the interfaces. In recent years some approaches appear to couple the level set and VOF method in order to overcome the disadvantages of the two methods. The CLSVOF method is one of such combination. Although this method extracts the advantages of VOF and level set methods, it is computationally more complicated than both of them. In VOSET only the C advection equation needs to be solved by the VOF method while the level set function is calculated by a simple iterative geometric operation and is used to calculate some geometric parameters and fluid properties at the interface, thus leading to a significant simplification of solution process. An extension of VOSET from 2D to 3D will also be presented. An iterative root-finding method is used for implementing Piecewise Linear Interface Construction (PLIC) in three dimensions. An iterative geometric method is presented to calculate the level set function. Numerical tests show that this method has second-order accuracy.

In the second part of the lecture the VOSET method is adopted to simulate several boiling heat transfer processes. These include: (1) Nucleate boiling on some roughen surfaces with an existing vapor embryo; (2) Effect of liquid height on the nucleate boiling heat transfer; (3) Film boiling on a flat surface; and (4) Forced flow boiling in a microchannel.

In the 3rd part of the lecture further research needs is discussed. All the above discussed simulations are based on the existence of a vapor embryo, which is an unpleasant feature. Some mesoscale or microscale simulation method should be developed by which no existence of any embryo is required.


Professor Qinjun Kang

Los Alamos National Laboratory,
Earth and Environmental Sciences Division,
Los Alamos, United States

Dr. Qinjun Kang is a Senior Scientist in the Earth and Environmental Sciences Division at the Los Alamos National Laboratory (LANL) of the United States. He received his PhD in Mechanical Engineering from the Johns Hopkins University in 2004. He joined LANL as a Graduate Research Assistant in 2001, was selected as a Director's Postdoctoral Fellow in 2004, and became a member of LANL's Technical Staff in 2005. His current research focuses on modeling and simulation of transport and interfacial phenomena at the meso/nanoscale, and on multi-scale models bridging different scales. He has coauthored over 120 publications, including 70+ peer-reviewed journal articles and 5 book chapters. His publications have been collectively cited over 2300 times (600+ times in 2015 alone) according to Google Scholar. Dr. Kang has been invited to give 20+ talks at various national/international conferences, universities, national laboratories, and industries, and has organized/chaired sessions at numerous conferences. He is currently a member of the Editorial Board for Scientific Reports and WSEAS Transactions on Fluid Mechanics, and the leading Guest Editor for the Special Issue “Advances in Modeling Flow and Transport in Porous Media” in a new open access journal Computation. In addition, Dr. Kang has served as a reviewer for over 50 international journals and various funding agencies.

Lattice Boltzmann Modeling of Transport and Interfacial Phenomena

Abstract:
Transport and interfacial phenomena are pervasive in natural and man-made systems. Geologic examples include development of petroleum and geothermal reservoirs, geologic storage of carbon dioxide and nuclear waste, and fate and transport of underground contaminants. Man-made energy systems include fuel cells, flow batteries, and micro reactors. A better understanding of these phenomena is critical to managing improved production of earth’s energy resources and safe disposal of energy-related waste, and to improving the performance of engineered energy systems. In this talk, I will present our recent work on numerical modeling and simulation of various transport phenomena in porous media or microchannels based on the mesoscopic lattice Boltzmann method. Multiple coupled physicochemical processes are considered in our model, including diffusion, advection of heat/mass/ions, multiphase fluid flow, phase change, particulate flow, electrokinetic flow, as well as chemical/electrochemical reactions. Simulation examples include micro reactors, fuel cells, boiling heat transfer, shale gas, geologic CO2 sequestration, and underground nuclear waste disposal. Multiscale simulation strategy coupling the mesoscale LBM with conventional CFD method or Darcy-scale porous medium simulator is also briefly introduced. It is shown that the LBM can account for multiple, coupled physicochemical transport and interfacial processes in these systems and can shed some light on the underlying physics occurring at the fundamental scale. Therefore, it can be a potential powerful numerical tool to analyze these coupled processes in various energy, earth, and environmental systems.


Professor R. Venkata Rao

Department of Mechanical Engineering
Sardar Vallabhbhai National Institute of Technology (SV NIT)
{An Institute of National Importance of Government of India}
Ichchanath, Surat-395 007, Gujarat State, INDIA.

Dr. R. Venkata Rao is currently working as a Professor in the Department of Mechanical Engineering, S.V. National Institute of Technology, Surat, India. The institute is one of the institutes of national importance of the Government of India. He has more than 25 years of teaching and research experience. He had gained his B.Tech. in 1988, M.Tech. in 1991 and Ph.D. in 2002. Dr. Rao's research interests include: advanced optimization algorithms and their applications to design, thermal and manufacturing engineering, and fuzzy MADM methods and their industrial applications. He has about 300 research papers to his credit published in national and international journals and conference proceedings and received national and international awards for the his research works. He is a reviewer to many national and international journals and on the editorial boards of few International journals. Apart from conducting a number of short term training programs to the faculty members and professionals, he has handled a good number of research projects including the bi-lateral projects with Austria, Russia and Slovenia. He was deputed thrice (each time for a semester) to the Asian Institute of Technology (AIT), Bangkok, Thailand as a visiting Professor by the Government of India. He had authored five books and all these books were published by Springer Verlag, London, UK.

Role of advanced optimization algorithms in the design of heat exchangers

Abstract:
Heat exchangers are used to transfer thermal energy between two or more media. Various types of heat exchangers are used for different industrial applications and among them the shell and tube heat exchangers (STHEs) and plate-fin heat exchangers (PFHEs) are widely used. The PFHEs are widely used in gas–gas applications such as cryogenics, micro-turbines, automobiles and aeronautical applications because of their high thermal effectiveness and large heat transfer surface area per unit volume. The STHEs are extensively used in refineries and petrochemical industries because of their relatively simple manufacturing and their adaptability to different operating conditions. Design of heat exchangers is a complex procedure and it requires an integrated understanding of thermodynamics, fluid dynamics, cost estimation and optimization. Objectives involved in the design optimization of heat exchangers are thermodynamic (i.e. maximum efficiency) and economic (i.e. minimum cost). Researchers have considered different objectives such as minimization of total annual cost, minimization of pressure drop, minimization of entropy generation units, minimization of total thermo-economic cost, minimization of weight, minimization of exergy cost, minimization of heat exchanger area, minimization of power consumption, maximization of NTUs per unit pressure drop or heat transfer per unit pumping power, maximization of effectiveness with increased heat transfer rate, etc. The optimum design of heat exchangers is always required as the optimal trade-off between the considered objectives.

The conventional design approach for heat exchangers involves rating a large number of different exchanger geometries to identify those that satisfy a given heat duty and a set of geometric and operational constraints. This approach is time-consuming and does not guarantee an optimal solution. Traditional methods of optimization do not fare well over a broad spectrum of problem domains. Numerous constraints and objectives make the heat exchanger optimization problems complicated and hence the traditional optimization algorithms are not ideal for solving such problems as they tend to obtain a local optimal solution. Hence, in order to overcome some of the well known deficiencies of the traditional optimization procedures, metaheuristic optimization algorithms (also called the advanced optimization algorithms) mainly originated from artificial intelligence research have been developed by researchers. These algorithms are problem- and model- independent and most of them are efficient and flexible. Research on these techniques is very active and many new metaheuristics and improved versions of the older ones are continually appearing in the scientific literature.

The advanced optimization algorithms used by the researchers for the design optimization of heat exchangers include genetic algorithm (GA) and its multi-objective version NSGA-II, simulated annealing (SA), particle swarm optimization (PSO), artificial bee colony (ABC), harmony search (HS), differential evolution (DE), cuckoo search (CS), teaching-learning-based optimization (TLBO) and hybrid versions of some of these algorithms. These optimization algorithms have been successfully applied for the design optimization of different types of heat exchangers such as STHEs and PFHEs. Both single- and multi-objective design optimization of heat exchangers has been carried out by the researchers and this presentation reports the related details.


Professor Suh, Sang-Ho

Department of Mechanical Engineering
Flow Information Lab., Soongsil University
Dr. Ing. graduate of University of Stuttgart, 1989

Career
1990.09~Present : Professor, Dept. Mech. Engrg., Soongsil University
2006.01~2007.12 : President of Korean Society for Fluid Machinery (KSFM)
2009.01~2009.12 : Division Chair of Korean Society for Mechanical Engineer (KSME)
2012.01~2013.12 : President of Biomedical Engineering Society for Circulatory Disorders (BESCO)
2012.01~2013.12 : Committee Chair of National Congress on Fluid Engineering (NCFE)
Research FieldBiomedical Engineering
  • Biofluid Circulations (Blood, Urine and Air flows in arteries, ureter, upper airway)
  • Developments of Biomedical Devices
Industrial applications researches
  • Performance evaluation of pumps and hydraulic turbines
  • Development of automatic waste collecting system
  • Pneumatic Capsule Pipeline (PCP)

Awards
2014 KSME best paper award
2008 and 2014 BESCO best scientific research award

Recent studies for obustructive sleep apnea and hydronephrosis

Dr. Ing. Suh, Sang-Ho
Department of Mechanical Engineering
Soongsil University, Seoul, 06978, Korea
Correspondence author: Suh Sang-Ho
Fax: +82-02-824-0658
Abstract:
Recently people are being suffered by the circulatory diseases such as arterial disorders, obstructive sleep apnea and hydronephrosis. Upper airway has a lot of functions. In the surface of upper airway, heat transfer is always happened during respiration cycle. This reflects the occurrences of OSA due to ambient temperature effects. The ureter obstruction occurs when the urine flows parallel in the bore and the surrounding annulus of a stent. A double J stent has been used widely these days for patients with a ureteral stenosis or with renal stones and lithotripsy. The function of the double J stand in fluid dynamics has not been studied well. The purpose of this study is to investigate the obstructive sleep apnea diagnosis and hydronephrosis treatment informations. In this paper, upper airway in patients with OSA pre- and post MMA is analyzed with computational fluid dynamics and ureter using numerical and experimental visualizations are also investigated. The upper airway 3D model investigation is done by CFD and discussed to find new correlations of OSA syndrome. These simulations are carried out using CT images. The time-dependent inflow and outflow boundary conditions are applied from Doppler data. Also, the flow phenomena of inspiration and expiration to evaluate the effects of anatomical airway change after maximandibular advancement are analyzed. The FSI (Fluid Structure Interaction) algorithm is used to solve complicated compliance problems in the ureter 3D models. The in vitro experiment is carried out by the ureter RP model. Here, the flow rate and pattern around the side holes of a double J stent are evaluated in curved models of a stented ureter based on the human anatomy and straight models for comparison. The total flow rate is higher in the stent with a greater number of side holes.



Professor Rachid Bennacer


Pr. Dr. Ing. R. BENNACER, is an Engineer in Mechanical field (1989), and he got his PhD thesis at Pierre et Marie Curie University (Paris 6) in 1993. He worked as lecturer in the University Paris XI (1993/94), become an associate professor at Cergy Pontoise University1994 and got his Prof./A. in 1998 and full Professor in 2008. He moved as Professor to the prestigious school Ecole Normale superieure (Cachan) since 2010.

Since 2003 he assumed several responsibilities, director of the LEEVAM research team (2003-2007), Licence degrees (2008-2010), Aggregation title (2010-2011), Master research degree (2011-2013), Transfer and Environmental Research Unit (within LMT-Lab/ CNRS; since July 2012) and dean of Civil/Environmental department (since Oct. 2012). He is a Member of several scientific committee and journals main board.
He was very active in international collaborations within H2020 (Europe), China, PHC, ERASMUS programs.

His present research activity is within the LMT laboratory (CNRS UMR 8535) and he manages Transfer and Environmental Research Unit including 4 faculty members, 2 post-Docs and 9 PhD students.
His Research field covers wide spectrum and several domains. His research covers the building material for energy applications or on durability aspect; pollution/depollution and energy and renewable energy system.
The expertise covers the direct numerical simulation including CFD coupling on multi-scales. The previous approach is consolidated by analytical or reduction approach in order to identify the instabilities and global behavior bifurcation and similarity controlling parameters in multiphysics situation. He published more than 130 A ranked international journals (Referenced SCOPUS/ISI).

Some questions on the appropriate scale in Building integrating Hybrid solar collector


Abstract:

In order to reduce heating energy demand and CO2 emission of buildings, thermal insulation has been reinforced. The well insulated zero energy building must cover several remaining needs (air renew, Heating lose, hot water, lightning..) so it must be a producing system by including renewable energy systems.

The weak efficiency of Photovoltaic cell and the conversion of most energy to heat push researchers, since beginning of 2000, to propose hybrid collectors. Such collectors are devoted to produce both electricity (PV) and heat by increasing the temperature of circulating fluid (water or air).

To evaluate the thermal efficiency of such hybrid system a focus on the appropriate scale is needed. But remains the question of what is the appropriate scale study?

The flow structure and change in heat transfer or conversion process will be directly related to the economic viability. The coupling of the collector with the building and the energy demand is another challenge.

The presentation will cover fundamental, academicals, and practical topics. Indeed, the mixed convection in channels heated and cooled differentially is studied in relation to this hybrid collector but also encountered in several nature and industrial domains. The subject is currently open for exploration, in order to enrich our knowledge of this complicated problem.


Prof. Dr. Li-Zhi ZHANG

Affiliation:
Professor and Vice Director of the Key Lab of Enhanced Heat Transfer and Energy Conservation of Education Ministry
South China University of Technology, China
Tel/fax: 8620-87114268



Address:
Prof Li-Zhi Zhang
Shaw Engineering Building, Room 315
South China University of Technology
Wushan, Guangzhou, 510640, China


Li-Zhi Zhang is a Professor at South China University of Technology (Guangzhou, China), the winner of the National Science Fund for Distinguished Young Scholars of China. He has worked with Thermal Science, Heat and Mass Transfer, and advanced humidity control technologies since 1992. His research interests include: membrane technologies; Development of novel functional materials for built environment; self-cleaning surfaces. His researches combine fundamentals with applications.

Li-Zhi Zhang has published more than 94 ISI papers in international journals. They were cited more than 1800 times in ISI, and his current H-index is 26. He has authored 5 books in advanced humidity control and heat and mass transfer. His new book titled “Conjugate Heat and Mass Transfer in Heat Mass Exchanger Ducts” was published by Academic Press, Elsevier, in 2013. He was awarded 10 patents, among which two have been industrialized. He is currently the editors or the members of the editorial boards for following international journals: Energy and Buildings (IF 2.47); Indoor and Built Environment (IF 1.7), Thermal Science (IF 0.96), Int. J. Low Carbon Technologies, J. Membrane and Separation Technology. He is the fellow of the Society of Indoor Environment and Health of China; and the fellows of Heat and Mass Transfer Division and Multi-phase Flow Division of Chinese Society of Engineering Thermo-physics. His won the first grade prize for natural science of Education Ministry of China in 2011. He also won the prestigious National Science Fund for Distinguished Young Scholars of China (2014).

A Lattice-Boltzmann Simulation of mass transport through porous membranes considering gas-to-matrix interactions

Li-Zhi Zhang
  • Key Laboratory of Enhanced Heat Transfer and Energy Conservation of Education Ministry, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
  • State key laboratory of Subtropical Building Science, South China University of Technology, Guangzhou 510640, China
Abstract
Porous membranes have been widely used in various energy and environmental industries, either directly as the separating media, or indirectly as the support layer for the working skin layer. Previous modeling of mass transport through porous membranes either treated these membranes as a macro-scale black box, or neglected the interactions between gas phase and solid phase by macro-scale method of CFD. As a consequence, the effects of material interfacial forces cannot be disclosed. In this study, a new approach, a meso-scale Lattice Boltzmann Simulation approach (LBM) which includes the gas-to-solid interfacial forces, is tentatively tried to model the mass transport of water vapor in membrane matrixes with different hydrophilicity. Porous membranes with different surface energy and contact angles are investigated. The effects of structural parameters and hydrophilicity (wettability) on membrane permeability are discussed. It is found that the material hydrophilicity or wettability has a great impact on mass transfer inside the pores. The drag effect from interfacial forces becomes larger when porosity is less than 0.5 for hydrophilic or even less-hydrophobic materials. Thus besides larger porosity and larger pore diameters, higher hydrophobicity are recommended for porous membranes used for the support layers of composite membranes. Further, for composite membranes for air dehumidification, hydrophobic-hydrophilic dual-polar membranes are a choice.

Keywords: Porous membranes; hydrophilicity; Lattice Boltzmann Simulation (LBM); interfacial forces; surface energy



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