Wind tunnel experiments on wind turbine wakes in yaw: effects of inflow turbulence and shear

Bartl, Jan; Mühle, Franz; Schottler, Jannik; Sætran, Lars; Peinke, Joachim; Adaramola, Muyiwa; Hölling, Michael

doi:10.5194/wes-3-329-2018

Articles | Volume 3, issue 1

https://doi.org/10.5194/wes-3-329-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/wes-3-329-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 3, issue 1

Research article

|

01 Jun 2018

Research article |

| 01 Jun 2018

Wind tunnel experiments on wind turbine wakes in yaw: effects of inflow turbulence and shear

Jan Bartl, Franz Mühle, Jannik Schottler, Lars Sætran, Joachim Peinke, Muyiwa Adaramola, and Michael Hölling

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May 2018	17	19	0	36
Jun 2018	107	70	6	183
Jul 2018	42	22	3	67
Aug 2018	49	24	2	75
Sep 2018	24	32	0	56
Oct 2018	30	21	1	52
Nov 2018	19	45	5	69
Dec 2018	15	48	0	63
Jan 2019	25	53	1	79
Feb 2019	15	33	0	48
Mar 2019	15	28	3	46
Apr 2019	18	37	1	56
May 2019	40	32	0	72
Jun 2019	260	32	2	294
Jul 2019	257	50	1	308
Aug 2019	81	57	0	138
Sep 2019	118	68	3	189
Oct 2019	117	58	1	176
Nov 2019	173	54	0	227
Dec 2019	94	47	0	141
Jan 2020	112	37	2	151
Feb 2020	55	48	0	103
Mar 2020	55	40	1	96
Apr 2020	16	45	0	61
May 2020	26	39	3	68
Jun 2020	45	40	1	86
Jul 2020	135	71	16	222
Aug 2020	18	8	1	27
Sep 2020	19	13	0	32
Oct 2020	25	19	0	44
Nov 2020	33	14	0	47
Dec 2020	10	9	1	20
Jan 2021	32	16	2	50
Feb 2021	20	11	0	31
Mar 2021	26	23	0	49
Apr 2021	30	13	2	45
May 2021	22	11	1	34
Jun 2021	28	21	0	49
Jul 2021	23	17	2	42
Aug 2021	17	15	0	32
Sep 2021	16	17	0	33
Oct 2021	32	57	0	89
Nov 2021	30	35	2	67
Dec 2021	25	14	1	40
Jan 2022	21	19	0	40
Feb 2022	16	8	3	27
Mar 2022	14	8	1	23
Apr 2022	21	15	1	37
May 2022	13	10	4	27
Jun 2022	15	5	3	23
Jul 2022	23	10	0	33
Aug 2022	89	8	2	99
Sep 2022	15	12	0	27
Oct 2022	19	11	3	33
Nov 2022	29	12	0	41
Dec 2022	23	8	0	31
Jan 2023	27	21	2	50
Feb 2023	29	12	1	42
Mar 2023	32	16	0	48
Apr 2023	24	26	3	53
May 2023	22	15	0	37
Jun 2023	22	19	1	42
Jul 2023	23	7	1	31
Aug 2023	19	14	2	35
Sep 2023	26	16	1	43
Oct 2023	34	17	2	53
Nov 2023	15	9	0	24
Dec 2023	32	14	3	49
Jan 2024	122	13	0	135
Feb 2024	25	9	1	35
Mar 2024	19	20	2	41
Apr 2024	28	17	5	50
May 2024	28	9	2	39
Jun 2024	272	27	4	303
Jul 2024	47	16	2	65
Aug 2024	37	17	5	59
Sep 2024	25	21	3	49
Oct 2024	49	35	1	85
Nov 2024	45	33	0	78
Dec 2024	37	26	2	65
Jan 2025	30	32	4	66
Feb 2025	46	17	1	64
Mar 2025	39	14	0	53
Apr 2025	39	27	1	67
May 2025	51	15	2	68
Jun 2025	79	35	1	115
Jul 2025	45	25	2	72
Aug 2025	46	12	2	60
Sep 2025	128	31	3	162
Oct 2025	58	25	2	85
Nov 2025	172	38	3	213

Cumulative views and downloads (calculated since 08 Jan 2018)

Month	HTML	PDF	XML	Total
Jan 2018	66	33	4	103
Feb 2018	51	16	9	76
Mar 2018	47	24	1	72
Apr 2018	19	14	0	33
May 2018	17	19	0	36
Jun 2018	107	70	6	183
Jul 2018	42	22	3	67
Aug 2018	49	24	2	75
Sep 2018	24	32	0	56
Oct 2018	30	21	1	52
Nov 2018	19	45	5	69
Dec 2018	15	48	0	63
Jan 2019	25	53	1	79
Feb 2019	15	33	0	48
Mar 2019	15	28	3	46
Apr 2019	18	37	1	56
May 2019	40	32	0	72
Jun 2019	260	32	2	294
Jul 2019	257	50	1	308
Aug 2019	81	57	0	138
Sep 2019	118	68	3	189
Oct 2019	117	58	1	176
Nov 2019	173	54	0	227
Dec 2019	94	47	0	141
Jan 2020	112	37	2	151
Feb 2020	55	48	0	103
Mar 2020	55	40	1	96
Apr 2020	16	45	0	61
May 2020	26	39	3	68
Jun 2020	45	40	1	86
Jul 2020	135	71	16	222
Aug 2020	18	8	1	27
Sep 2020	19	13	0	32
Oct 2020	25	19	0	44
Nov 2020	33	14	0	47
Dec 2020	10	9	1	20
Jan 2021	32	16	2	50
Feb 2021	20	11	0	31
Mar 2021	26	23	0	49
Apr 2021	30	13	2	45
May 2021	22	11	1	34
Jun 2021	28	21	0	49
Jul 2021	23	17	2	42
Aug 2021	17	15	0	32
Sep 2021	16	17	0	33
Oct 2021	32	57	0	89
Nov 2021	30	35	2	67
Dec 2021	25	14	1	40
Jan 2022	21	19	0	40
Feb 2022	16	8	3	27
Mar 2022	14	8	1	23
Apr 2022	21	15	1	37
May 2022	13	10	4	27
Jun 2022	15	5	3	23
Jul 2022	23	10	0	33
Aug 2022	89	8	2	99
Sep 2022	15	12	0	27
Oct 2022	19	11	3	33
Nov 2022	29	12	0	41
Dec 2022	23	8	0	31
Jan 2023	27	21	2	50
Feb 2023	29	12	1	42
Mar 2023	32	16	0	48
Apr 2023	24	26	3	53
May 2023	22	15	0	37
Jun 2023	22	19	1	42
Jul 2023	23	7	1	31
Aug 2023	19	14	2	35
Sep 2023	26	16	1	43
Oct 2023	34	17	2	53
Nov 2023	15	9	0	24
Dec 2023	32	14	3	49
Jan 2024	122	13	0	135
Feb 2024	25	9	1	35
Mar 2024	19	20	2	41
Apr 2024	28	17	5	50
May 2024	28	9	2	39
Jun 2024	272	27	4	303
Jul 2024	47	16	2	65
Aug 2024	37	17	5	59
Sep 2024	25	21	3	49
Oct 2024	49	35	1	85
Nov 2024	45	33	0	78
Dec 2024	37	26	2	65
Jan 2025	30	32	4	66
Feb 2025	46	17	1	64
Mar 2025	39	14	0	53
Apr 2025	39	27	1	67
May 2025	51	15	2	68
Jun 2025	79	35	1	115
Jul 2025	45	25	2	72
Aug 2025	46	12	2	60
Sep 2025	128	31	3	162
Oct 2025	58	25	2	85
Nov 2025	172	38	3	213

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Short summary

Wake steering by yawing a wind turbine offers great potential to increase the wind farm power production. A model scale experiment in a controlled wind tunnel environment has been performed to map the wake flow's complex velocity distribution for different inflow conditions. A non-uniform sheared inflow was observed to affect the wake flow only insignificantly. The level of turbulent velocity fluctuations in the inflow, however, influenced the wake's velocity distribution to a higher degree.


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