Dr Andrzej F Nowakowski

Dr Andrzej Nowakowski

Lecturer

Careers Director

Industrial Liaison Officer

Department of Mechanical Engineering
Sir Frederick Mappin Building
Mappin Street
Sheffield
S1 3JD
UK

Telephone: +44(0)114 222 7812
Fax: +44(0)114 222 7890

email : a.f.nowakowski@sheffield.ac.uk

Areas of Research

Andrew's research interests are in the area of aerodynamics, multi-component and multi-phase flows. In all these categories, the work aims to construct the algorithms for determining approximate solutions of relevant flow problems. Then, numerical methods are analysed and computer codes implementing the algorithms are developed, first for the purpose of showing the efficacy of the discretization methods and ultimately, to solve problems of practical interest.

The developed numerical technique based on vortex method was used to compute hydrodynamic forces for the flow past a rotating body. Andrew's group created a novel approach for calculation of the flow problem in hydrocyclones and developed its own specialist finite element software package, which was used to calculate the three-dimensional incompressible flow in complex geometries. Most recently, a computational simulation of two-phase compressible flow has been proposed for safety analysis of chemical reactors. The approach taken in this research enables the resolution of multi-phase mixtures and interface problems between compressible fluids.

All the projects necessitate close co-operation between participants from different universities and industry. Academic colleagues around the world use the software modules created by Andrew and his group.

Teaching

• MEC407 Fundamental Biomechanics

• MEC424 Aerodynamic Design

Books

Nicolleau FCGA, Cambon C, Redondo JM, Vassilicos JC, Reeks M & Nowakowski AF (2011) New Approaches in Modeling Multiphase Flows and Dispersion in Turbulence, Fractal Methods and Synthetic Turbulence. Springer Verlag.

Journal articles

Chen ZJ, Qin N & Nowakowski AF (2013) Three-dimensional laminar-separation bubble on a cambered thin wing at low reynolds numbers. Journal of Aircraft, 50(1), 152-163.
Ballil A, Jolgam SA, Nowakowski AF & Nicolleau FCGA (2013) Computing compressible two-component flow systems using diffuse interface method. Lecture Notes in Electrical Engineering, 229 LNEE, 135-146.
Alhinai AA & Nowakowski AF (2012) Understanding the drag reduction properties of the flow over k and d -type rough surfaces. ECCOMAS 2012 - European Congress on Computational Methods in Applied Sciences and Engineering, e-Book Full Papers, 1192-1208.
Michelitsch TM, Maugin GA, Rahman M, Derogar S, Nowakowski AF & Nicolleau FCGA (2012) A continuum theory for one-dimensional self-similar elasticity and applications to wave propagation and diffusion. European Journal of Applied Mathematics, 23(6), 709-735.
Michelitsch TM, Maugin GA, Rahman M, Derogar S, Nowakowski AF & Nicolleau FCGA (2012) An approach to generalized one-dimensional self-similar elasticity. International Journal of Engineering Science, 61, 103-111.
Wasilewski J, Poloński L, Mirota K, Peryt-Stawiarska S, Nowakowski A & Zembala M (2012) Wprowadzenie do numerycznej mechaniki płynu na podstawie komputerowej symulacji przepływu w lewej tȩtnicy wieńcowej. Kardiochirurgia i Torakochirurgia Polska, 9(3), 366-374.
Michelitsch TM, Maugin GA, Rahman M, Derogar S, Nowakowski AF & Nicolleau FCGA (2012) An approach to generalized one-dimensional self-similar elasticity. International Journal of Engineering Science.
Nicolleau FCGA, Salim SMM & Nowakowski AF (2011) Experimental study of a turbulent pipe flow through a fractal plate. Journal of Turbulence, 12, 1-20.
Nowakowski AF & Nicolleau FCGA (2011) Interaction of a confined jet with an obstacle creating vortex separation. Journal of Physics: Conference Series, 318(SECTION 3).
Nicolleau FCGA & Nowakowski AF (2011) Presence of a Richardson's regime in kinematic simulations. PHYS REV E, 83(5).
Godeferd FS, Nicolleau F, Cambon C & Nowakowski AF (2010) Synthetic models and environment, LMFA, Ecole Centrale de Lyon, France. ERCOFTAC Bulletin, (In Press)-(In Press).
Michelitsch TM, Maugin GA, Nowakowski AF & Nicolleau FCGA (2009) Analysis of the vibrational mode spectrum of a linear chain with spatially exponential properties. INT J ENG SCI, 47(2), 209-220.
Nowakowski AF (2009) Compressible multiphase flow models with interfaces.. ERCOFTAC Bulletin, 77, 31-31.
Michelitsch TM, Maugin GA, Nicolleau FCGA, Nowakowski AF & Derogar S (2009) Dispersion relations and wave operators in self-similar quasicontinuous linear chains. PHYS REV E, 80(1).
Abou El-Azm Aly A, Nicolleau F, Nowakowski AF & Michelitsch TM (2009) Effect of inertia on the fractal dimension of particle line in three-dimensional turbulent flows using Kinematic Simulation. World Academy of Science, Engineering and Technology, 40, 189-193.
Abou El-Azm Aly A, Nicolleau F, Nowakowski AF & Michelitsch TM (2009) Effect of particle gravity on the fractal dimension of particle line in three-dimensional turbulent flows using kinematic simulation. World Academy of Science, Engineering and Technology, 40, 198-202.
Michelitsch T, Maugin G, Nicolleau F, Nowakowski AF & Derogar S (2009) KS input spectrum, some fundamental works on the vibration spectrum of a self-similar linear chain. ERCOFTAC Bulletin, 77, 33-33.
Nowakowski AF, Rokicki J, Bajer K & Nicolleau F (2009) Synthetic models and vortex methods, Warsaw University of Technology Warsaw, Poland. ERCOFTAC Bulletin, 81, 23-26-23-26.
Ghangir F, Nowakowski AF, Nicolleau FCGA & Michelitsch TM (2009) The application of HLLC numerical solver to the reduced multiphase model. World Academy of Science, Engineering and Technology, 40, 302-308.
Ghangir F, Nowakowski AF, Nicolleau FCGA & Michelitsch TM (2009) The Application of HLLC Numerical Solver to the Reduced Multiphase Model. Intl J. of Mech., Industrial and Aerospace Eng., 1, 74-80-74-80.
Nowakowski AF & Doby MJ (2008) The Numerical Modelling of the Flow in Hydrocyclones. KONA POWDER PART J(26), 66-80.
Nowakowski AF & Doby MJ (2008) The Numerical Modelling of the Flow in Hydrocyclones. KONA POWDER PART J, 26, 66-80.
Evans WK, Suksangpanomrung A & Nowakowski AF (2008) The simulation of the flow within a hydrocyclone operating with an air core and with an inserted metal rod. CHEM ENG J, 143(1-3), 51-61.
Doby MJ, Nowakowski AF, Yiu I & Dyakowski T (2008) Understanding air core formation in hydrocyclones by studying pressure distribution as a function of viscosity. INT J MINER PROCESS, 86(1-4), 18-25.
Librovich BV, Nowakowski AF & Rovetta A (2007) A simplified chemical kinetics model for decomposition of Trigonox 21S. CHEM ENG J, 131(1-3), 113-121.
Doby MJ, Nowakowski AF, Nowak E & Dyakowski T (2007) Numerical and experimental examination of swirl flow in a cylindrical container with rotating lids. MINERALS ENGINEERING, 20(4), 361-367.
Kraipech W, Chen W, Dyakowski T & Nowakowski A (2006) The performance of the empirical models on industrial hydrocyclone design. INT J MINER PROCESS, 80(2-4), 100-115.
Kraipech W, Nowakowski A, Dyakowski T & Suksangpanomrung A (2005) An investigation of the effect of the particle-fluid and particle-particle interactions on the flow within a hydrocyclone. CHEMICAL ENGINEERING JOURNAL, 111(2-3), 189-197.
Dyakowski T, Hale JM, Jaworski A, White NM, Nowakowski A, Meng G & Rwifa S (2005) Dual-modality probe for characterization of heterogeneous mixtures. IEEE SENS J, 5(2), 134-138.
Doby MJ, Kraipech W & Nowakowski AF (2005) Numerical prediction of outlet velocity patterns in solid-liquid separators. CHEMICAL ENGINEERING JOURNAL, 111(2-3), 173-180.
Librovich BV & Nowakowski AF (2004) Analysis, design, and modeling of a rotary vane engine (RVE). J MECH DESIGN, 126(4), 711-720.
Nowakowski AF, Cullivan JC, Williams RA & Dyakowski T (2004) Application of CFD to modelling of the flow in hydrocyclones. Is this a realizable option or still a research challenge?. MINERALS ENGINEERING, 17(5), 661-669.
Librovich BV & Nowakowski AF (2004) Dynamic behaviour of rotary vane engines with one, two and four work units. Proceedings of the 7th Biennial Conference on Engineering Systems Design and Analysis, ESDA 2004, 2, 483-494.
Nowakowski AF, Librovich BV & Lue L (2004) Reactor safety anlaysis based on a developed two-phase compressible flow simulation. Proceedings of the 7th Biennial Conference on Engineering Systems Design and Analysis, ESDA 2004, 1, 929-936.
Nowakowski AF & Dyakowski T (2003) Investigation of swirling flow structure in hydrocyclones. CHEM ENG RES DES, 81(A8), 862-873.
Protas B, Styczek A & Nowakowski A (2000) An Effective Approach to Computation of Forces in Viscous Incompressible Flows. Journal of Computational Physics, 159(2), 231-245.
Nowakowski AF, Kraipech W, Williams RA & Dyakowski T (2000) The hydrodynamics of a hydrocyclone based on a three-dimensional multi-continuum model. CHEMICAL ENGINEERING JOURNAL, 80(1-3), 275-282.
Rokicki J, Nowakowski A & Floryan JM (1996) Domain decomposition for the Navier-Stokes equations in complex geometries. ZAMM Zeitschrift fur Angewandte Mathematik und Mechanik, 76(SUPPL. 5), 431-432.

Chapters

Nowakowski AF, Michelitsch TM, Nicolleau FCGA & Derogar S (2011) KS Input Spectrum, Some Fundamental Works on the Vibration Spectrum of a Self-similar Linear Chain In Nicolleau FCGA, Cambon C, Redondo JM, Vassilicos JC, Reeks M & Nowakowski AF (Ed.), New Approaches in Modeling Multiphase Flows and Dispersion in Turbulence, Fractal Methods and Synthetic Turbulence (pp. 23-42). Springer Verlag.

Conferences

Farhan M, Nicolleau FCGA, Nowakowski AF & Angilella J-R (2011) Fractal patterns in turbulent flow for laden particles. Journal of Physics: Conference Series, 318(SECTION 5)
Nicolleau FCGA, Nowakowski AF & Michelitsch TM (2011) Synthetic turbulence prediction in non-Kolmogorov turbulence. Journal of Physics: Conference Series, 318(SECTION 4)
Nowakowski AF, Nicolleau FCGA & Salim SMM (2010) COMPUTATIONAL STUDY OF A TARGET FLUIDIC FLOWMETER. PROCEEDINGS OF THE ASME 10TH BIENNIAL CONFERENCE ON ENGINEERING SYSTEMS DESIGN AND ANALYSIS, 2010, VOL 3, 361-367.
Salim SMM, Nicolleau FCGA, Beck SBM & Nowakowski AF (2010) EXPERIMENTAL STUDY OF TURBULENCE ACROSS THE FRACTAL ORIFICE PLATE. PROCEEDINGS OF THE ASME 10TH BIENNIAL CONFERENCE ON ENGINEERING SYSTEMS DESIGN AND ANALYSIS, 2010, VOL 3, 353-360.
Chen ZJ, Nowakowski AF & Qin N (2010) Flow separation on cambered plate wing MAVs with various aspect ratios. RAeS Conference on Applied Aerodynamics: Capabilities and Future Requirements
Hannemann FH, Nowakowski AF, Nicolleau FCGA & Zheng H (2009) Turbulent flow structure investigation within target fluidic flowmeter. ADVANCES IN TURBULENCE XII - PROCEEDINGS OF THE 12TH EUROMECH EUROPEAN TURBULENCE CONFERENCE, 132, 931-931.
Nowakowski AF, Kraipech W & Dyakowski T (2003) Performance of some finite elements in numerical simulation of complex incompressible three dimensional flow. ANALYSIS AND SIMULATION OF MULTIFIELD PROBLEMS, 12, 155-161.
Nowakowski AF, Nicolleau FCGA & Salim SM () Characteristics of Unsteady Flows in Enclosed Chamber with an Obstacle Creating Vortex Separation. 6th AIAA Theoretical Fluid Mechanics Conference, (ID: 1023232)-(ID: 1023232).
Nowakowski AF, Nicolleau FCGA & Salim SMM () Computational study of a target fluidic flowmeter. The ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis (ESDA 2010), ESDA2010-24133-ESDA2010-24133.
Michelitsch TM, Maugin GA, Nicolleau FCGA, Nowakowski AF & Derogar S () Dispersion Relation and Wave Propagation in Linear Chains with Self-Similar Distributions of Harmonic Interactions. IV European Conference on Computational Mechanics
Salim SMM, Nicolleau FCGA & Nowakowski AF () Experimental study of turbulence across the fractal orifice plate. The ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis (ESDA 2010), ESDA2010-24108-ESDA2010-24108.
Michelitsch T, Maugin G, Nicolleau F, Nowakowski A & Derogar S () Relations de dispersion pour des chaînes linéaire comportant des interactions harmoniques auto-similaires. 10ème Congrès Français d’Acoustique
Nicolleau FCGA & Nowakowski AF () Richardson’s law and the sweeping problem in KS
Nowakowski AF, Hannemann F, Nicolleau FCGA & Zheng H () Turbulent flow structure investigation within target fluidic flowmeter. 12th EUROMECH European Turbulence Conference, 931-932-931-932.
Michelitsch TM, Maugin GA, Nicolleau FCGA, Nowakowski AF & Derogar S () Wave propagation in linear chains with self-similar harmonic interactions. 16th US National Congress of Theoretical and Applied Mechanics, USNCTAM2010-339-USNCTAM2010-339.
Michelitsch T, Maugin G, Nicolleau F, Nowakowski AF & Derogar S () Wave Propagation in Quasi-continuous Linear Chains with Self-similar Harmonic Interactions - Towards a Fractal Mechanics. First German-French-Russian Symposium on Generalized Continua