@article {Simula.simula.1018,
	title = {Dispersion of Legionella-Containing Aerosols From a Biological Treatment Plant},
	journal = {Frontiers in Bioscience},
	volume = {E3},
	year = {2011},
	pages = {1300-1309},
	author = {Janet Martha {Blatny} and Hannibal E. {Fossum} and Ho, J. and Tutkun, Murat and Skogan, Gunnar and Andreassen, {\O}yvind and Else Marie {Fykse} and Waagen, V. and Bj{\o}rn Anders Petterson {Reif}}
}
@inproceedings {Simula.simula.1022,
	title = {Modeling the Dispersion and Transport of Aerosols Emitted From Industrial Facility During 2005 and 2008 Outbreaks of Legionnaire{\textquoteright}s Disease in Norway},
	journal = {Sixth national conference on Computational Mechanics (MekIT{\textquoteright}11)},
	year = {2011},
	publisher = {Tapi Academic Press},
	type = {Conference},
	author = {Hannibal E. {Fossum} and Tutkun, Murat and Bj{\o}rn Anders Petterson {Reif} and Andreassen, {\O}yvind},
	editor = {Bj{\o}rn H. {Skallerud} and H. I. {Andersson}}
}
@inproceedings {Simula.simula.1026,
	title = {Verification of Markovian Properties of Turbulent Boundary Layer at High Reynolds Number},
	journal = {Sixth national conference on Computational Mechanics (MekIT{\textquoteright}11)},
	year = {2011},
	publisher = {Tapir Academic Press},
	type = {1},
	author = {Fredbo, M. and Tutkun, Murat},
	editor = {Bj{\o}rn H. {Skallerud} and H. I. {Andersson}}
}
@article {Simula.simula.60,
	title = {Assesment of the Dispersion of Legionella-Containing Aerosols From a Biological Treatment Plant},
	journal = {Frontiers in Bioscience},
	year = {2010},
	author = {Janet Martha {Blatny} and Tutkun, Murat and Fossum, H. and Ho, J. and Skogan, Gunnar and Else Marie {Fykse} and Andreassen, {\O}yvind and Waagen, V. and Bj{\o}rn Anders Petterson {Reif}}
}
@article {Simula.simula.58,
	title = {Computational and Experimental Investigation of Aerosol Dispersion in a Complex Industrial Environment},
	journal = {Journal of Wind Engineering \& Industrial Aerodynamics},
	year = {2010},
	publisher = {-},
	author = {Fossum, H. and Tutkun, Murat and Bj{\o}rn Anders Petterson {Reif} and Gjesdal, Thor}
}
@article {Simula.simula.62,
	title = {Dispersion of Aerosols From Two Different Sources at a Biological Treatment Plant in Norway},
	journal = {Enviromental Science \& Technology},
	year = {2010},
	author = {Tutkun, Murat and Andreassen, {\O}yvind and Bj{\o}rn Anders Petterson {Reif}}
}
@article {Simula.sc.956,
	title = {Double Large Field Stereoscopic PIV in a High Reynolds Number Turbulent Boundary Layer},
	journal = {Experiments in Fluids},
	volume = {50},
	number = {-},
	year = {2009},
	pages = {1-12},
	publisher = {Springer},
	abstract = {An experiment on a flat plate turbulent boundary layer at high Reynolds number has been carried out in the Laboratoire de Mecanique de Lille (LML, UMR CNRS 8107) wind tunnel. This experiment was performed jointly with LEA (UMR CNRS 6609) in Poitiers (France) and Chalmers University of Technology (Sweden), in the frame of the WALLTURB European project. The simultaneous recording of 143 hot wires in one transverse plane and of two perpendicular stereoscopic PIV fields was performed successfully. The first SPIV plane is 1 cm upstream of the hot wire rake and the second is both orthogonal to the first one and to the wall. The first PIV results show a blockage effect which based on both statistical results (i.e. mean, RMS and spatial correlation) and a potential model does not seem to affect the turbulence organization.},
	doi = {10.1007/s00348-009-0800-9},
	author = {Coudert, S. and J. M. {Foucaut} and Kostas, J. and Stanislas, M. and Braud, P. and Fourment, C. and Delville, J. and Tutkun, Murat and Mehdi, F. and Peter B. V. {Johansson} and William K. {George}}
}
@article {Simula.sc.990,
	title = {In Situ Calibration of Hot Wire Probes in Turbulent Flows},
	journal = {Experiments in Fluids},
	volume = {46},
	number = {4},
	year = {2009},
	pages = {617-629},
	abstract = {A method for in situ calibration of hot-wires in a turbulent flow is presented. The method is particularly convenient (even necessary) for calibrating large probe arrays, like the 143-wire boundary layer rake of the WALLTURB experiment. It is based on polynomial expansion of the velocity statistics in terms of voltage statistics as originally described by George et al. [Exp Ther Fluid Sci 2(2):230-235, 1989]. Application of the method requires knowing reference mean velocity and higher order central moments (with the array in place) of the turbulent velocity at the probe location at only one freestream velocity. These were obtained in our experiment by a stereo PIV plane just upstream of the probe array. Both the procedure for implementing the method and sample results are presented in the article.},
	doi = {10.1007/s00348-008-0587-0},
	author = {Tutkun, Murat and William K. {George} and J. M. {Foucat} and Coudert, S. and Stanislas, M. and Delville, J.}
}
@article {Simula.sc.960,
	title = {Mind the Gap: a Guideline for Large Eddy Simulation},
	journal = {Philosophical Transactions of the Royal Society A},
	volume = {367},
	number = {1899},
	year = {2009},
	month = {July},
	pages = {2839-2847},
	abstract = {This paper briefly reviews some of the fundamental ideas of turbulence as they relate to large eddy simulation (LES). Of special interest is how our thinking about the so-called {{\textquoteleft}}spectral gap{\textquoteright} has evolved over the past decade, and what this evolution implies for LES applications.},
	doi = {10.1098/rsta.2009.0063},
	author = {William K. {George} and Tutkun, Murat}
}
@misc {Simula.sc.1152,
	title = {Proper Orthogonal Decomposition of Velocity and Scalar Fields in Shear Generated Turbulence},
	howpublished = {Talk at MekIT{\textquoteright}09: Fifth National Conference on Computational Mechanics, Trondheim, May 26-27},
	year = {2009},
	note = {Listed in the 2009 annual report as "Low order dynamical system modelling stratified shear turbulence"},
	author = {Tutkun, Murat and Bj{\o}rn Anders Petterson {Reif} and Peter B. V. {Johansson} and Werne, J.}
}
@inproceedings {Simula.sc.1122,
	title = {Proper Orthogonal Decomposition of Velocity and Scalar Fields in Shear Generated Turbulence},
	journal = {MekIT{\textasciiacute}09. Fifth national conference on Computational Mechanics},
	year = {2009},
	note = {Is registered in the 2009 annual report as "Low order Dynamical System Modelling of StratifiedHear Turbulence"},
	publisher = {Tapir akademisk forlag},
	type = {Conference},
	isbn = {9788251924214},
	author = {Tutkun, Murat and Bj{\o}rn Anders Petterson {Reif} and Peter B. V. {Johansson} and Werne, J.},
	editor = {Bj{\o}rn H. {Skallerud} and Andersson, H.I.}
}
@article {Simula.sc.1118,
	title = {Two-Point Correlations in High Reynolds Number Flat Plate Turbulent Boundary Layers},
	journal = {Journal of Turbulence},
	volume = {10},
	number = {21},
	year = {2009},
	abstract = {Two-point correlations of turbulent boundary layer are presented for Re. of 9800 and 19,100. The results are based on wind tunnel measurements performed in the 30 cm thick boundary layer of the 21.6 m long LML (Laboratoire de Mecanique de Lille) boundary layer research facility. Simultaneous hot-wire probe measurements of the entire boundary layer at 143 different points on an array are used for computation of the two-point correlations. The two-point correlations in the streamwise-spanwise plane at 11 different wall-normal positions covering one boundary layer thickness in the spanwise direction show that the maximal extension of the correlations in the streamwise direction is bounded within +/- 3.5 delta for both of the Reynolds number tested. The shapes of the positive correlations in the streamwise-spanwise plane at different wall-normal positions are similar throughout the boundary layer from nearly the freestream to the wall. The correlations in the streamwise-wall-normal plane for 11 different wall-normal reference positions also show that the correlations in some cases cover the entire boundary layer. The streamwise extent of the correlations in the streamwise-wall-normal plane is about 7-8 boundary layer thicknesses. Two-point correlation maps for the streamwise-wall-normal plane reveal the existence of non-zero correlations between even the intermittent region and near-wall region.},
	doi = {10.1080/14685240902878045},
	author = {Tutkun, Murat and William K. {George} and Delville, J. and Stanislas, M. and Peter B. V. {Johansson} and J. M. {Foucaut} and Coudert, S.}
}
@misc {Simula.sc.1116,
	title = {Large Scale Structures of High Reynold Number Turbulent Boundary Layers},
	howpublished = {Invited talk at the Workshop on Wall Bounded Shear Flows: Transistion and Turbulence, Cambridge University, Isaac Newton Institute for Mathematical Science},
	year = {2008},
	author = {Tutkun, Murat}
}
@inproceedings {Simula.sc.1108,
	title = {Measuring Spectra With Burst-Mode LDA},
	journal = {Bulletin of the American Physical Society, 61th Annual meeting of the APS Division of fluid dynamics},
	volume = {53},
	number = {15},
	year = {2008},
	type = {Annual},
	author = {Velte, C. and William K. {George} and Tutkun, Murat and Frohnapfel, B.}
}
@inproceedings {Simula.sc.1044,
	title = {Space-Time Correlations From a 143 Hot-Wire Rake in High Reynold Number Turbulent Boundary Layer},
	journal = {AIAA Theoretical Fluid Mechanics Conference},
	year = {2008},
	type = {Conference},
	author = {Tutkun, Murat and William K. {George} and Delville, J. and J. M. {Foucaut} and Coudert, S. and Stanislas, M.}
}
@misc {Simula.sc.1056,
	title = {Stochastic Analysis of Turbulence: N-Scale and N-Point Correlations in Homogeneous an Inhomogeneous Turbulent Flows},
	howpublished = {Presented at the iTi Conference on Turbulence III, Bertinoro, Italy},
	year = {2008},
	author = {Stresing, R. and Tutkun, Murat and L{\"u}ck, S. and Peinke, J.}
}
@phdthesis {Simula.sc.1046,
	title = {Structure of Zero Pressure Gradient High Reynolds Number Turbulent Boundary Layersn},
	year = {2008},
	school = {Chalmers University of Technology},
	type = {phd},
	abstract = {This thesis presents part of the large research program funded by the European Commission called Wallturb: A European synergy for the assessment of wall turbulence. The main aim of this research program is to create new experimental and numerical databases on the characteristics of turbulent wall- bounded {fl}ows, especially turbulent boundary layers. The goal is that these databases will be used to gain more insight into the physical mechanisms governing the dynamics of these {fl}ows. This knowledge is deemed essential for the future development of ef{fi}cient and physical turbulence modeling strategies, which are in turn crucial to aircraft and other industries for sustainable development, especially under the pressure of high oil prices and operational costs. The signature experiment of Wallturb was the multi-investigator, multi-system, multi-point investigation carried out in the 20m test section of the boundary layer research facility at LML Lille, France in 2006. This thesis is focused primarily on the part of that investigation which utilized the 143 probe hot-wire array belonging to the Turbulence Research Laboratory of Chalmers, and only on the two zero- pressure gradient boundary layer experiments at Reθ of 9800 and 19 100. A new hot-wire calibration method was developed and utilized for this investigation. The method is based on a polynomial curve {fi}tting approximation which expresses the instantaneous velocity as a function of instantaneous voltage. The results showed that even a second order polynomial approximation yields very good agreement between the measured pro{fi}les (or computed pro{fi}les after the calibration) and the reference pro{fi}les used in the calibration. The method also provides an opportunity to do the calibration on the {fl}y as long as the convergence of the high order voltage statistics can be satis{fi}ed. The large scale motions of the turbulence were studied in detail using two-dimensional two-point cross-correlations maps on different planes within the measurement domain. It was observed that the elongated correlations exist at every wall-normal position above the buffer layer. These elongated structures were relatively more signi{fi}cant in the log layer. The investigation using the proper orthogonal decomposition showed that the POD (in conjunction with Fourier analysis in the statistically homogeneous and stationary directions) can effectively represent the total kinetic energy with a small number of modes. At both Reynolds numbers, it was possible to recover almost 90\% of the total turbulence kinetic energy within the entire boundary layer with only four POD modes. The reconstructed velocity {fl}uctuations on the spanwise-wall-normal plane show how organized motions of turbulence with signi{fi}cant amounts of energy interact with each other across the boundary layer. It was also possible to observe the interaction between the inner and outer layers of turbulence using these reconstructed velocity {fi}elds.},
	isbn = {978-91-7385-166-4},
	author = {Tutkun, Murat}
}
@article {Simula.sc.950,
	title = {Three-Component Vectorial Proper Orthogonal Decomposition of Axisymmetric Wake Behind a Disk},
	journal = {AIAA Journal},
	volume = {46},
	number = {5},
	year = {2008},
	month = {May},
	pages = {1118-1134},
	abstract = {One-component scalar, two-component vectorial, and three-component vectorial proper orthogonal decompositions of the axisymmetric turbulent wake have been studied to investigate possible effects of the number of components comprising the two-point correlation tensor forming the kernel of the proper orthogonal decompositions integral equation. A wind-tunnel experiment has been performed 50 diameters downstream of the wake generator, which was a disk of 20 mm in diameter. The Reynolds number based on the disk diameter was 20,400. Twelve cross hot wires were used to obtain the simultaneous multipoint measurements. Six of the probes were located on a fixed rake and the other six probes were located on a movable rake, which was traversed from 10 to 180 deg in 10 deg increments. Two experiments were carried out to obtain first the streamwise and azimuthal components of the velocity, and second to obtain the streamwise and radial components of the velocity. Seven out of nine components of the two-point correlation tensor were computed using measured velocities and the remaining two two-point correlations were extracted from the data using the continuity equations. The one-component scalar, and two- and three-component vectorial decomposition results were essentially in agreement. Eigenvalues for the full vector proper orthogonal decompositions integrated over frequency showed that Fourier mode 2 was the largest in both the streamwise and azimuthal velocity. Azimuthal mode 2 peaks at the near-zero frequency, whereas azimuthal mode 1 peaks at a frequency which corresponds to the vortex shedding frequency. Similar features in turbulence kinetic energy distributions were also observed in the modally decomposed two-point cross-spectra and two-point cross-correlations.},
	doi = {10.2514/1.31074},
	author = {Tutkun, Murat and Peter B. V. {Johansson} and William K. {George}}
}
@inproceedings {Simula.sc.1104,
	title = {Two-Point Cross-Spectral and POD Analysis of High Reynold Number Zero Pressure Gradient Turbulent Boundary Layer},
	journal = {Bulletin of American Physical Society, 61th Annual meeting of the APS Division of fluid dynamics},
	volume = {53},
	number = {15},
	year = {2008},
	type = {1},
	abstract = {This study reports some of the two-point cross-spectral and proper orthogonal decomposition analyzes performed on the zero pressure gradient flat plate turbulent boundary layer experiments at R\_{\th}eta}=9800 and 19,100. They are based on hot-wire measurements using a rake of 143 single wire probes placed in the LML wind tunnel, which has a 20 m long test section with approximately 30 cm of boundary layer thickness. Elongated correlations and their variation across the boundary layer are shown using two-point space-time correlations computed over very long records. The possible interaction between the inner and outer layer is discussed using the cross-correlations analysis and also a POD-based reconstruction of the velocity fields on a plane normal to the streamwise direction. Organization of the large scale structures on the same plane is also demonstrated using a combination of different spanwise Fourier and POD modes.},
	author = {Tutkun, Murat and William K. {George} and J. M. {Foucaut} and Coudert, S. and Stanislas, M. and Delville, J.}
}
