FLOW AROUND A CYLINDER - istiarto

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– B.6 – #14 dcf(i), i=1,nfi (nfi=6) six real numbers: the deferred-correction factors for each of the �-equations. #15 urf(i), i=1,nfi (nfi=6) six real numbers: the under-relaxation factors for each of the �-equations. #16 urfvis,urfdhp,urfdhz three real: the under-relaxation factors for the eddy-viscosity, for the surface movement according to the grid size criterion, and for the surface movement according to the pressure defect criterion.� #17 tol(i), i=1,nfi (nfi=6) six real numbers: the error tolerances for each of the �-equations. #18 pctol one real number: the error tolerance for the pressure correction. #19 resmin, resmax two real numbers: the minimum and maximum errors, if these limits are exceeded, the program will stop. #20 npcor one integer number: the method of the pressure correction: [1] SIMPLE or [2] SIMPLEC. #21 nipcor one integer number: the number of iterations in the pressure correction [1] without or [2] with correction due to non-orthogonal terms. #22 nigrad one integer number: the number of iterations in the gradient computation [1] without or [2] with correction due to non-orthogonal terms. #23 dt, edt two real numbers: the time step and the E factor in case of varying �t. #24 nitl, nitm, nitn, nitprn four integer numbers: the number of iterations for the �-, m-, n-iterations, and for the printing interval, respectively. #25 density, viscosity, gravity three real numbers: the water density, the kinematic viscosity, and the gravitational acceleration, respectively. #26 disch one real number: the discharge through the inlet boundary. #27 axisrot one real number: the angle of the axis rotation in degrees, a counter-clockwise convention is used. #28 nx, ny, nz three integers numbers: the number of vertices (the number of divisions + 1) in the x, y, and z directions, respectively (see example). #29 ipcr, jpcr, kpcr three integers numbers: the (i,j,k) indices of the cell used for the reference of the pressure correction. #30 ipr, jpr, kpr three integer numbers: the (i,j,k) indices of the cell used for the reference of the pressure.
– B.7 – #31 imon1, jmon1, kmon1 three integer numbers: the (i,j,k) indices of the first monitoring cell. #32 imon2, jmon2, kmon2 three integer numbers: the (i,j,k) indices of the second monitoring cell. #33 imon3, jmon3, kmon3 three integer numbers: the (i,j,k) indices of the third monitoring cell. #34 imon4, jmon4, kmon4 three integer numbers: the (i,j,k) indices of the fourth monitoring cell. #35 imon5, jmon5, kmon5 three integer numbers: the (i,j,k) indices of the fifth monitoring cell. #36 nrbnd one integer number: the number of the boundary specifications (see example). #37 cbnd 1,cbnd 2 two 3-character strings, put in the columns 1-3 and 5-7: the boundary type and the position of the boundary node with respect to the interior node, respectively. #38 istart, iend, jstart, jend, kstart, kend six integer numbers: the position of the boundary nodes, from istart to iend, from jstart to jend, and from kstart to kend (see example). #39 rks one real number: the equivalent roughness of the wall boundary; a zero value is given to boundaries other than the wall and the block boundaries (see example). The above 3 lines (#37, #38, #39) are to be specified to each boundary specification, nrbnd. #40 zper one real number: the vertical location of the cell vertices, in percent of the depth. The above input line (#40) is to be specified for each vertical vertices, nz, starting from the top (the surface, zper = 100.0) to the bottom (the bed, zper = 0.0). If a uniform vertical grid size is specified, i.e. when lzunif is true (see #5), this input is not needed. #41 uin, vin, win, kin, epsin five real numbers: the inlet values for u, v, w, k, and �. The above input line (#41) is to be specified for each cells in a vertical, nk = nz+1, starting from the top (the surface, k = nk) to the bottom (the bed, k = 1). This is done for one vertical (one profile) only and is assumed to be valid for all verticals in the inlet boundaries. EXAMPLE: BOUNDARY SPECIFICATION An example is here given to demonstrate the specification of the boundary specification in the KECONTROL input file.
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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
Page 25 and 26:
- 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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- 5.9 - ( p � � 1 [mm]), but th
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- 5.11 - Fig. 5.4 Model test result
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- 5.13 - within a greater number of
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- 5.15 - Fig. 5.6 Computational his
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- 5.17 - 5.5 Simulation of flow aro
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- 5.19 - Fig. 5.9 Definition sketch
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- 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 and 244: - 6.7 - Fig. 6.1 Measured and compu
Page 245 and 246: IDENTITE - 7.1 - Curriculum Vitæ N
Page 247 and 248: FLOW AROUND A CYLINDER IN A SCOURED
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: B.2 Input data file - B.5 - The inp
Page 261 and 262: BLO for blocked cells, INL for inle
Page 263: FLOW AROUND A CYLINDER IN A SCOURED
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