Estimating the wake deflection downstream of a wind turbine in different atmospheric stabilities: an LES study

Vollmer, Lukas; Steinfeld, Gerald; Heinemann, Detlev; Kühn, Martin

doi:10.5194/wes-1-129-2016

Articles | Volume 1, issue 2

https://doi.org/10.5194/wes-1-129-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/wes-1-129-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 1, issue 2

Research article

|

13 Sep 2016

Research article |

| 13 Sep 2016

Estimating the wake deflection downstream of a wind turbine in different atmospheric stabilities: an LES study

Lukas Vollmer, Gerald Steinfeld, Detlev Heinemann, and Martin Kühn

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Mar 2016	87	37	1	125
Apr 2016	105	20	1	126
May 2016	99	16	2	117
Jun 2016	47	14	1	62
Jul 2016	5	3	3	11
Aug 2016	17	7	3	27
Sep 2016	104	31	3	138
Oct 2016	64	18	1	83
Nov 2016	14	12	1	27
Dec 2016	32	15	0	47
Jan 2017	40	26	0	66
Feb 2017	11	20	1	32
Mar 2017	25	25	1	51
Apr 2017	23	14	2	39
May 2017	36	32	1	69
Jun 2017	30	36	1	67
Jul 2017	24	44	0	68
Aug 2017	23	44	0	67
Sep 2017	30	40	0	70
Oct 2017	14	35	0	49
Nov 2017	27	50	1	78
Dec 2017	18	52	5	75
Jan 2018	29	33	0	62
Feb 2018	27	44	4	75
Mar 2018	19	49	2	70
Apr 2018	26	64	5	95
May 2018	22	41	1	64
Jun 2018	19	53	2	74
Jul 2018	19	47	3	69
Aug 2018	12	37	1	50
Sep 2018	24	34	2	60
Oct 2018	28	51	4	83
Nov 2018	32	50	2	84
Dec 2018	19	31	1	51
Jan 2019	19	40	1	60
Feb 2019	23	56	3	82
Mar 2019	16	63	1	80
Apr 2019	11	50	0	61
May 2019	20	47	1	68
Jun 2019	17	63	3	83
Jul 2019	23	66	2	91
Aug 2019	17	62	2	81
Sep 2019	25	65	2	92
Oct 2019	26	57	1	84
Nov 2019	24	49	1	74
Dec 2019	20	29	1	50
Jan 2020	40	36	2	78
Feb 2020	29	18	1	48
Mar 2020	38	25	2	65
Apr 2020	21	20	2	43
May 2020	28	31	3	62
Jun 2020	56	46	4	106
Jul 2020	83	95	41	219
Aug 2020	24	16	4	44
Sep 2020	27	15	1	43
Oct 2020	29	14	2	45
Nov 2020	31	26	2	59
Dec 2020	39	19	1	59
Jan 2021	43	26	0	69
Feb 2021	29	25	0	54
Mar 2021	42	27	2	71
Apr 2021	37	36	0	73
May 2021	34	28	3	65
Jun 2021	44	28	1	73
Jul 2021	30	17	2	49
Aug 2021	27	13	0	40
Sep 2021	21	22	0	43
Oct 2021	31	54	1	86
Nov 2021	35	40	2	77
Dec 2021	22	16	1	39
Jan 2022	34	31	6	71
Feb 2022	22	16	1	39
Mar 2022	27	28	2	57
Apr 2022	47	15	6	68
May 2022	37	23	1	61
Jun 2022	19	11	2	32
Jul 2022	30	13	1	44
Aug 2022	29	40	0	69
Sep 2022	21	14	0	35
Oct 2022	58	16	2	76
Nov 2022	32	36	1	69
Dec 2022	22	15	1	38
Jan 2023	32	23	2	57
Feb 2023	24	22	2	48
Mar 2023	61	34	3	98
Apr 2023	19	15	1	35
May 2023	39	21	3	63
Jun 2023	20	27	2	49
Jul 2023	43	8	1	52
Aug 2023	22	17	2	41
Sep 2023	34	16	2	52
Oct 2023	27	10	3	40
Nov 2023	29	26	1	56
Dec 2023	36	15	2	53
Jan 2024	31	17	0	48
Feb 2024	18	14	1	33
Mar 2024	28	24	1	53
Apr 2024	26	12	3	41
May 2024	31	19	7	57
Jun 2024	34	20	3	57
Jul 2024	35	35	4	74
Aug 2024	37	24	3	64
Sep 2024	32	12	2	46
Oct 2024	43	13	1	57
Nov 2024	28	8	1	37
Dec 2024	14	10	2	26
Jan 2025	22	8	0	30
Feb 2025	35	12	0	47
Mar 2025	43	12	0	55
Apr 2025	35	19	2	56
May 2025	42	12	2	56
Jun 2025	51	23	2	76
Jul 2025	31	21	1	53
Aug 2025	51	25	1	77
Sep 2025	54	12	3	69
Oct 2025	36	23	2	61
Nov 2025	44	30	2	76
Dec 2025	0

Cumulative views and downloads (calculated since 10 Mar 2016)

Month	HTML	PDF	XML	Total
Mar 2016	87	37	1	125
Apr 2016	105	20	1	126
May 2016	99	16	2	117
Jun 2016	47	14	1	62
Jul 2016	5	3	3	11
Aug 2016	17	7	3	27
Sep 2016	104	31	3	138
Oct 2016	64	18	1	83
Nov 2016	14	12	1	27
Dec 2016	32	15	0	47
Jan 2017	40	26	0	66
Feb 2017	11	20	1	32
Mar 2017	25	25	1	51
Apr 2017	23	14	2	39
May 2017	36	32	1	69
Jun 2017	30	36	1	67
Jul 2017	24	44	0	68
Aug 2017	23	44	0	67
Sep 2017	30	40	0	70
Oct 2017	14	35	0	49
Nov 2017	27	50	1	78
Dec 2017	18	52	5	75
Jan 2018	29	33	0	62
Feb 2018	27	44	4	75
Mar 2018	19	49	2	70
Apr 2018	26	64	5	95
May 2018	22	41	1	64
Jun 2018	19	53	2	74
Jul 2018	19	47	3	69
Aug 2018	12	37	1	50
Sep 2018	24	34	2	60
Oct 2018	28	51	4	83
Nov 2018	32	50	2	84
Dec 2018	19	31	1	51
Jan 2019	19	40	1	60
Feb 2019	23	56	3	82
Mar 2019	16	63	1	80
Apr 2019	11	50	0	61
May 2019	20	47	1	68
Jun 2019	17	63	3	83
Jul 2019	23	66	2	91
Aug 2019	17	62	2	81
Sep 2019	25	65	2	92
Oct 2019	26	57	1	84
Nov 2019	24	49	1	74
Dec 2019	20	29	1	50
Jan 2020	40	36	2	78
Feb 2020	29	18	1	48
Mar 2020	38	25	2	65
Apr 2020	21	20	2	43
May 2020	28	31	3	62
Jun 2020	56	46	4	106
Jul 2020	83	95	41	219
Aug 2020	24	16	4	44
Sep 2020	27	15	1	43
Oct 2020	29	14	2	45
Nov 2020	31	26	2	59
Dec 2020	39	19	1	59
Jan 2021	43	26	0	69
Feb 2021	29	25	0	54
Mar 2021	42	27	2	71
Apr 2021	37	36	0	73
May 2021	34	28	3	65
Jun 2021	44	28	1	73
Jul 2021	30	17	2	49
Aug 2021	27	13	0	40
Sep 2021	21	22	0	43
Oct 2021	31	54	1	86
Nov 2021	35	40	2	77
Dec 2021	22	16	1	39
Jan 2022	34	31	6	71
Feb 2022	22	16	1	39
Mar 2022	27	28	2	57
Apr 2022	47	15	6	68
May 2022	37	23	1	61
Jun 2022	19	11	2	32
Jul 2022	30	13	1	44
Aug 2022	29	40	0	69
Sep 2022	21	14	0	35
Oct 2022	58	16	2	76
Nov 2022	32	36	1	69
Dec 2022	22	15	1	38
Jan 2023	32	23	2	57
Feb 2023	24	22	2	48
Mar 2023	61	34	3	98
Apr 2023	19	15	1	35
May 2023	39	21	3	63
Jun 2023	20	27	2	49
Jul 2023	43	8	1	52
Aug 2023	22	17	2	41
Sep 2023	34	16	2	52
Oct 2023	27	10	3	40
Nov 2023	29	26	1	56
Dec 2023	36	15	2	53
Jan 2024	31	17	0	48
Feb 2024	18	14	1	33
Mar 2024	28	24	1	53
Apr 2024	26	12	3	41
May 2024	31	19	7	57
Jun 2024	34	20	3	57
Jul 2024	35	35	4	74
Aug 2024	37	24	3	64
Sep 2024	32	12	2	46
Oct 2024	43	13	1	57
Nov 2024	28	8	1	37
Dec 2024	14	10	2	26
Jan 2025	22	8	0	30
Feb 2025	35	12	0	47
Mar 2025	43	12	0	55
Apr 2025	35	19	2	56
May 2025	42	12	2	56
Jun 2025	51	23	2	76
Jul 2025	31	21	1	53
Aug 2025	51	25	1	77
Sep 2025	54	12	3	69
Oct 2025	36	23	2	61
Nov 2025	44	30	2	76
Dec 2025	0

Latest update: 02 Dec 2025

Short summary

The wake flow downstream of yaw misaligned wind turbines is studied in numeric simulations of different atmospheric turbulence and shear conditions. We find that the average trajectory of the wake as well as the variation about this average is influenced by the thermal stability of the atmosphere. The results suggest that an intentional intervention in the yaw control of individual turbines to increase overall wind farm performance might be not successful during unstable thermal conditions.