Cylinder ILES

ILES

ILES: Solving N-S directly, not adding explicit (PDE) terms.

Circular Cylinder: Experiments

Aljure, D. E., et al. “Three dimensionality in the wake of the flow around a circular cylinder at Reynolds number 5000.” Computers & Fluids 147 (2017): 102-118.

Norberg, Christoffer. “Flow around a circular cylinder: aspects of fluctuating lift.” Journal of fluids and structures 15.3-4 (2001): 459-469.

Norberg, Christoffer. “Pressure forces on a circular cylinder in cross flow.” Bluff-Body Wakes, Dynamics and Instabilities: IUTAM Symposium, Göttingen, Germany September 7–11, 1992. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993.

From ref

Current results

from paper

Mach number at $z=4$, time averaged, LUSGS:

Mach number at $z=4$, time averaged, LUSGS-3LUSGS:

Pressure and streamline at $z=4$, time averaged, LUSGS:

Pressure=71, time averaged, LUSGS:

Q=0.5, dt=0.05:

Q=0.5, dt=0.20:

Drag coefficient

Drag

ILES starting runs:

Drag

ILES restarted runs:

Drag

Case	$C_d$	error	i0
CylinderB1_L8U2_Rawstart2_PdT05_restart1_TH3_.log	1.2832e+00	2632.4	19500
CylinderB1_L8U2_Rawstart2_PdT05_restart2_TH3_IDDES0_.log	1.3274e+00	3073.8	19500
CylinderB1_L8U2_Rawstart2_PdT05_restart2_TH3_IDDES0_O4_.log	1.1953e+00	1752.9	19500
CylinderB1_L8U2_Rawstart3_PdT05_TH3_ILES_O4_.log	1.0679e+00	479.0	19500
CylinderB1_L8U2_Rawstart4_PdT05_TH3_ILES_dF02R_O4_.log	1.0537e+00	337.1	13107
CylinderB1_L8U2_Rawstart4_PdT05_TH3_ILES_dF02R_O4_GW2_.log	9.8597e-01	-340.3	19500
CylinderB1_L8U2_Raw4dT05_TH3_ILES_dF02R_O4_GW2_O45_res0_JC1it0_TH4_MG44_L_.log	9.9673e-01	-232.7	500
CylinderB1_L8U2_Raw4dT05_TH3_ILES_dF02R_O4_GW2_O45_res0_JC1it0_TH4_MG4_L_.log	9.6334e-01	-566.6	500
CylinderB1_L8U2_Raw4dT05_TH3_ILES_dF02R_O4_GW2_O45_res0_JC1it0_TH4_L_.log	9.7306e-01	-469.4	500
CylinderB1_L8U2_Raw4dT05_TH3_ILES_dF02R_O4_GW2_O45_res0_JC1it0_dT05_A_.log	9.6862e-01	-513.8	1500
CylinderB1_L8U2_Raw4dT05_TH3_ILES_dF02R_O4_GW2_O45_res0_JC1it0_dT05_MG4_A_.log	9.8024e-01	-397.6	1500
CylinderB1_L8U2_Raw4dT05_TH3_ILES_dF02R_O4_GW2_O45_res0_JC1it0_dT20_TH4_A_.log	9.6582e-01	-541.8	117
CylinderB1_L8U2_Raw4dT05_TH3_ILES_dF02R_O4_GW2_O45_res0_JC1it0_dT20_TH4_MG4_A_.log	9.7331e-01	-466.9	500
CylinderB1_L8U2_Rawstart4_PdT05_TH3_IDDES3RR1_.log	1.2830e+00	2629.8	19500
CylinderB1_L8U2_Rawstart4_PdT05_TH3_IDDES3RR1_dF02_.log	1.2844e+00	2643.8	19086
CylinderB1_L8U2_Rawstart4_PdT05_TH3_IDDES5RR2_.log	1.2884e+00	2684.5	19500
CylinderB1_L8U2_Rawstart4_PdT05_TH3_IDDES3RR2_.log	1.2652e+00	2452.1	19500
CylinderB1_L8U2_Rawstart4_PdT05_TH3_IDDES3RR2_O4_.log	1.1195e+00	995.0	19323
CylinderB1_L8U2_Rawstart4_PdT05_TH3_IDDES3RR2_dF02_O4_.log	1.1081e+00	881.1	12020
CylinderB1_L8U2_Rawstart4_PdT05_TH3_IDDES3R_O4_.log	1.2439e+00	2239.3	19500
CylinderB1_L8U2_Rawstart4_PdT05_TH3_IDDES3R_dF02_.log	1.2660e+00	2460.0	19170
CylinderB1_L8U2_Rawstart4_PdT05_TH3_IDDES3R_.log	1.3041e+00	2841.0	19500
CylinderB1_L8U2_Raw4dT05_TH2_dF02_O4_GW2_.log	1.0571e+00	370.6	4239
CylinderB1_L8U2_Raw4dT05_TH2_dF02_O4_.log	9.2391e-01	-960.9	148
CylinderB1_L8U2_Raw4dT05_TH2_O4_GW2_.log	1.1684e+00	1483.5	19500
CylinderB1_L8U2_Raw4dT05_TH3_O4_GW2_.log	1.2978e+00	2778.0	19500
CylinderB1_L8U2_Raw4dT05_TH3_O4_.log	1.2962e+00	2761.8	19500
CylinderB1_L8U2_Raw4dT05_TH3R_O4_GW2_.log	1.3593e+00	3393.3	14320
CylinderB1_L8U2_Raw4dT05_TH3R_O4_.log	1.2245e+00	2045.4	14371

Lift coefficient

ILES starting runs:

Lift

ILES restart runs:

Lift

CL spectrum

Lift

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CylinderB1_L8U2_Rawstart3_PdT05_TH3_ILES_O4_.log                                                      ||| St = 0.195384
CylinderB1_L8U2_Rawstart4_PdT05_TH3_ILES_dF02R_O4_.log                                                ||| St = 0.185615
CylinderB1_L8U2_Rawstart4_PdT05_TH3_ILES_dF02R_O4_GW2_.log                                            ||| St = 0.205153
CylinderB1_L8U2_Raw4dT05_TH3_ILES_dF02R_O4_GW2_O45_res0_JC1it0_TH4_MG44_L_.log                        ||| St = 0.210158
CylinderB1_L8U2_Raw4dT05_TH3_ILES_dF02R_O4_GW2_O45_res0_JC1it0_TH4_MG4_L_.log                         ||| St = 0.20015
CylinderB1_L8U2_Raw4dT05_TH3_ILES_dF02R_O4_GW2_O45_res0_JC1it0_TH4_L_.log                             ||| St = 0.20015
CylinderB1_L8U2_Raw4dT05_TH3_ILES_dF02R_O4_GW2_O45_res0_JC1it0_dT05_A_.log                            ||| St = 0.210079
CylinderB1_L8U2_Raw4dT05_TH3_ILES_dF02R_O4_GW2_O45_res0_JC1it0_dT05_MG4_A_.log                        ||| St = 0.200075
CylinderB1_L8U2_Raw4dT05_TH3_ILES_dF02R_O4_GW2_O45_res0_JC1it0_dT20_TH4_A_.log                        ||| St = 0.20284
CylinderB1_L8U2_Raw4dT05_TH3_ILES_dF02R_O4_GW2_O45_res0_JC1it0_dT20_TH4_MG4_A_.log                    ||| St = 0.205154
====================

CylinderB1_L8U2_Rawstart3_PdT05_TH3_ILES_O4_.log                                                     ||| St_est1 = -0.196975, clrms = 0.16
CylinderB1_L8U2_Rawstart4_PdT05_TH3_ILES_dF02R_O4_.log                                               ||| St_est1 = -0.186727, clrms = 0.17
CylinderB1_L8U2_Rawstart4_PdT05_TH3_ILES_dF02R_O4_GW2_.log                                           ||| St_est1 = -0.199256, clrms = 0.048
CylinderB1_L8U2_Raw4dT05_TH3_ILES_dF02R_O4_GW2_O45_res0_JC1it0_TH4_MG44_L_.log                       ||| St_est1 = -0.20661, clrms = 0.062
CylinderB1_L8U2_Raw4dT05_TH3_ILES_dF02R_O4_GW2_O45_res0_JC1it0_TH4_MG4_L_.log                        ||| St_est1 = -0.200908, clrms = 0.044
CylinderB1_L8U2_Raw4dT05_TH3_ILES_dF02R_O4_GW2_O45_res0_JC1it0_TH4_L_.log                            ||| St_est1 = -0.20533, clrms = 0.044
CylinderB1_L8U2_Raw4dT05_TH3_ILES_dF02R_O4_GW2_O45_res0_JC1it0_dT05_A_.log                           ||| St_est1 = -0.209089, clrms = 0.046
CylinderB1_L8U2_Raw4dT05_TH3_ILES_dF02R_O4_GW2_O45_res0_JC1it0_dT05_MG4_A_.log                       ||| St_est1 = -0.204124, clrms = 0.054
CylinderB1_L8U2_Raw4dT05_TH3_ILES_dF02R_O4_GW2_O45_res0_JC1it0_dT20_TH4_A_.log                       ||| St_est1 = 0.20608, clrms = 0.05
CylinderB1_L8U2_Raw4dT05_TH3_ILES_dF02R_O4_GW2_O45_res0_JC1it0_dT20_TH4_MG4_A_.log                   ||| St_est1 = -0.204658, clrms = 0.066