FLOW AROUND A CYLINDER - istiarto

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– 6.8 –
IDENTITE – 7.1 – Curriculum Vitæ Nom ISTIARTO Prénom Istiarto Date de naissance 11 février 1962 à Yogyakarta, Indonésie Nationalité indonésienne État civil marié, 2 enfants FORMATION 1986 Obtention du diplôme d’ingénieur (Insinyur) en génie civil de l’Université Gadjah Mada, à Yogyakarta, Indonésie. 1989 Obtention du diplôme de Master of Engineering in water resources engineering de l’Asian Institute of Technology à Bangkok, Thaïlande. Travail de fin d’études intitulé : « Modelling of Solute Transport in Saturated-unsaturated Conditions ». 1996-2001 Travail de doctorat à l’École Polytechnique Fédérale de Lausanne, Suisse. Titre de la thèse : « Flow around a Cylinder in a scoured Channel Bed ». FONCTIONS EXERCEES 1987 Assistant du Département de Génie Civil de l’Université Gadjah Mada à Yogyakarta, Indonésie. 1989-1995 Attaché d’enseignement du Département de Génie Civil de l’Université Gadjah Mada à Yogyakarta, Indonésie. 1996-2001 Assistant et doctorant au Laboratoire de Recherches Hydrauliques de l’École Polytechnique Fédérale de Lausanne, Suisse. LANGUES Indonésien langue maternelle Anglais bonne connaissances théoriques et pratiques Français connaissances théoriques et pratiques. ACTIVITE PROFESSIONELLE 1990-1995 Responsable ou collaborateur dans plusieurs travaux d’études hydrauliques, notamment dans les modélisations numériques d’écoulement dans un canal du système de refroidissement de central thermique. 1994-1995 Travail de “detailed design for small scale irrigation projects” à Java, Indonésie. PUBLICATIONS W.H. Graf et I. Istiarto, Flow pattern in the scour hole around a cylinder, accepted for publication. I. Istiarto, Y. Zech, M.S. Altinakar, W.H. Graf, 3D modeling of flow around a cylinder, submitted for publication. I. Istiarto et W.H. Graf, Experiments on flow around a cylinder in a scoured channel bed, submitted for publication.
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FLOW AROUND A CYLINDER IN A SCOURED
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- iii - Flow around a Cylinder in a
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- v - Écoulement à Surface Libre
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- vii - Acknowledgements I wish to
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- ix - Table of Contents Abstract i
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- xi - 4.4 Pressure-velocity coupli
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Chapter 1 - 1.i - 1 Introduction 1.
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1 Introduction 1.1 Flow around a cy
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- 1.3 - pitot tubes. Ahmed and Raja
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Chapter 2 - 2.i - 2 Flow Measuremen
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2 Flow Measurements Abstract - 2.1
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2.1 Measurement design - 2.3 - The
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- 2.5 - The water circuit is a clos
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- 2.7 - Consider a target ―i‖ m
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- 2.9 - Obtaining the velocity comp
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- 2.11 - Fig. 2.4 Cartesian and cyl
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- 2.13 - transducer were used, a fo
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- 2.15 - typically needed for this
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- 2.17 - 2.3.3 Comparison to other
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- 2.19 - Fig. 2.7 Scour hole geomet
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- 2.21 - Fig. 2.8 Distributions of
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u ��u �� u� � Du exp�
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- 2.25 - �o , and accordingly the
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- 2.27 - Measurements in zone A. Th
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- 2.29 - and 0.3 u �� u ��
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- 2.31 - Fig. 2.12b Cont’d.
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- 2.33 - Fig. 2.12d Cont’d.
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2.5.4 Measurements in the plane �
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- 2.37 - Fig. 2.13b Cont’d.
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- 2.39 - Fig. 2.13d Cont’d.
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- 2.41 - the solid boundary of the
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- 2.43 - Fig. 2.14b Cont’d.
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- 2.45 - Fig. 2.14d Cont’d.
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- 2.47 - Turbulence intensities in
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- 2.49 - Fig. 2.15a Vertical distri
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- 2.51 - Fig. 2.15c Cont’d.
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- 2.53 - Reynolds stresses in the p
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- 2.55 - Fig. 2.16c Cont’d.
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2.6 Summary and conclusions - 2.57
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- 2.59 - Rolland, T. (1994). Develo
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Chapter 3 - 3.i - 3 Elaboration of
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- 3.1 - 3 Elaboration of the measur
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3.1 Introduction - 3.3 - Presented
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- 3.5 - Fig. 3.1 Measured velocity
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3.2.2 Flow pattern around the cylin
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- 3.9 - Fig. 3.2 Cont’d.
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Flow in the plane � = 45° and 90
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- 3.13 - Fig. 3.4 Contours of the m
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3.2.4 Vertical velocity (downward f
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- 3.17 - flow may undergo a rotatin
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- 3.19 - Fig. 3.7 Cont’d.
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- 3.21 - A similar observation, in
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- 3.23 - Fig. 3.9 Measured turbulen
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The following is to be observed: -
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- 3.27 - Fig. 3.10 Cont’d.
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- 3.29 - 3.4 Bed shear-stresses alo
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x [cm] - 3.31 - Table 3.1 Estimated
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- 3.33 - Fig. 3.12 Estimated bed sh
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- 3.35 - (see Fig. 3.10 and Fig. 3.
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- 3.37 - Fig. 3.14 Axonometric pres
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- 3.39 - U, U∞ [m/s] sectional av
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Chapter 4 - 4.i - 4 Numerical Model
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- 4.1 - 4 Numerical Model Developme
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�u �t �v �t �w �t �
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- 4.5 - The volume integrals of the
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- 4.7 - Fig. 4.1 Overall iterative
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- 4.9 - increase the computer stora
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- 4.11 - �� 1 ��
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- 4.13 - convective transport throu
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- 4.15 - n,��1 during a time st
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� for 0 � Pe e � q eL PE �
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4.3.8 Source terms - 4.19 - The sou
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2D � � � x �� b 2D �
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- 4.23 - b T � V P �t � n P
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- 4.25 - �� u ��1 � c i
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- 4.27 - Next, we need to define th
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4.5 Boundary conditions 4.5.1 Bound
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- 4.31 - The above relation holds a
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- 4.33 - � extrapolate all variab
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G � � t 2 �V t - 4.35 - 2 �
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with � �� nt,b � ��
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- 4.39 - boundary node B are then a
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- 4.41 - Wall function for the �
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k and � equations - 4.43 - � se
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�� z-momentum: - 4.45 - ��1
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- 4.47 - � reconstruct the mesh,
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- 4.49 - Fig. 4.13 The structure of
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- 4.51 - ��
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4.7 Summary - 4.53 - Development of
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- 4.55 - B, �B [-] constant and w
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- 4.57 - �, � 1 , � p [-] und
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Chapter 5 - 5.i - 5 Numerical Simul
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5 Numerical Simulation Abstract - 5
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5.2 Experimental data - 5.3 - 5.2.1
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- 5.5 - computational nodes. The ot
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- 5.7 - (i) Yulistiyanto data (ii)
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Page 197 and 198: - 5.13 - within a greater number of
Page 199 and 200: - 5.15 - Fig. 5.6 Computational his
Page 201 and 202: - 5.17 - 5.5 Simulation of flow aro
Page 203 and 204: - 5.19 - Fig. 5.9 Definition sketch
Page 205 and 206: - 5.21 - Fig. 5.10 Computed (lines)
Page 207 and 208: - 5.23 - Fig. 5.11 Computed and mea
Page 209 and 210: - 5.25 - 1.2U ∞ of the measuremen
Page 211 and 212: Water-surface profile - 5.27 - The
Page 213 and 214: - 5.29 - using a Joukowski transfor
Page 215 and 216: - 5.31 - 5.6.3 Results of the simul
Page 217 and 218: Velocity fields around the cylinder
Page 219 and 220: - 5.35 - Fig. 5.18 Computed and mea
Page 221 and 222: - 5.37 - than the measured one. The
Page 223 and 224: - 5.39 - Production and dissipation
Page 225 and 226: - 5.41 - Production of turbulent ki
Page 227 and 228: - 5.43 - If the above approach were
Page 229 and 230: - 5.45 - and surface profiles (see
Page 231 and 232: - 5.47 - Fig. 5.24 Surface boundary
Page 233 and 234: - 5.49 - S [m 2 ] surface area. So,
Page 235 and 236: Chapter 6 - 6.i - 6 Summary and Con
Page 237 and 238: - 6.1 - 6 Summary and Conclusions 6
Page 239 and 240: - 6.3 - The spatial distributions o
Page 241 and 242: - 6.5 - � Laboratory measurements
Page 243: - 6.7 - Fig. 6.1 Measured and compu
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Page 249 and 250: - iii - Appendices Appendix A: Expe
Page 251 and 252: A Experimental Data - A.1 - The exp
Page 253 and 254: B Numerical Model B.1 Program struc
Page 255 and 256: - B.3 -
Page 257 and 258: B.2 Input data file - B.5 - The inp
Page 259 and 260: - B.7 - #31 imon1, jmon1, kmon1 thr
Page 261 and 262: BLO for blocked cells, INL for inle
Page 263: FLOW AROUND A CYLINDER IN A SCOURED
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