What is the wind wake effect and why is important for wind turbines?
I was reading about wake models. However it is unclear to me how they are used to model wind turbines. Could anybody explain me what are wake models and why it is important to predict wakes in wind turbines?
electricity-generation wind-power
asked 2 hours ago
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I was reading about wake models. However it is unclear to me how they are used to model wind turbines. Could anybody explain me what are wake models and why it is important to predict wakes in wind turbines?
electricity-generation wind-power
asked 2 hours ago
anonanon
1111
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I was reading about wake models. However it is unclear to me how they are used to model wind turbines. Could anybody explain me what are wake models and why it is important to predict wakes in wind turbines?
electricity-generation wind-power
asked 2 hours ago
anonanon
1111
New contributor
anon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I was reading about wake models. However it is unclear to me how they are used to model wind turbines. Could anybody explain me what are wake models and why it is important to predict wakes in wind turbines?
electricity-generation wind-power
electricity-generation wind-power
asked 2 hours ago
anonanon
1111
New contributor
anon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 2 hours ago
anonanon
1111
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asked 2 hours ago
anonanon
1111
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asked 2 hours ago
anonanon
1111
asked 2 hours ago
anonanon
1111
1111
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The second slide of the presentation linked by you actually shows the issue with wake very clearly. You could also talk about turbulences instead of wake (my company actually does). Wake is simply the pertubation of the flow of the wind by wind turbines (or any other object, like hills, trees, buildings, airplane noses, the grill on the new SUV by Chrysler, etc). This pertubation can be modelled (please don't ask what the formulas are, I miserably failed that course in university).
So why is the prediction important? The first turbines in the direction of the oncoming wind are able to produce (slightly) more energy since the wind is streaming rather undisturbed. The second row of turbines can take less energy from the wind, since it was already slowed down and pertubed a bit by the first row. The same goes for any other turbines standing further back. So you need to know, how the wake most likely is shaped, considering topography and placement of turbines, in order to maximise the yield of you wind park.
Also, wake, or turbulences, can put stress on materials. Anyone who ever flew on a plane knows how turbulences can feel. Now imagine you expose an airplane wing to rather heavy turbulences all day round (okay, sometimes there are lulls) for 20 years. The material is put under a lot of strain, and sometimes it may break. Also the vibrations of the turbulences may affect the generator. So wake models also reduce the possibility of (near) total loss on a wind turbine.
answered 35 mins ago
ErikErik
1314
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1 Answer
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The second slide of the presentation linked by you actually shows the issue with wake very clearly. You could also talk about turbulences instead of wake (my company actually does). Wake is simply the pertubation of the flow of the wind by wind turbines (or any other object, like hills, trees, buildings, airplane noses, the grill on the new SUV by Chrysler, etc). This pertubation can be modelled (please don't ask what the formulas are, I miserably failed that course in university).
So why is the prediction important? The first turbines in the direction of the oncoming wind are able to produce (slightly) more energy since the wind is streaming rather undisturbed. The second row of turbines can take less energy from the wind, since it was already slowed down and pertubed a bit by the first row. The same goes for any other turbines standing further back. So you need to know, how the wake most likely is shaped, considering topography and placement of turbines, in order to maximise the yield of you wind park.
Also, wake, or turbulences, can put stress on materials. Anyone who ever flew on a plane knows how turbulences can feel. Now imagine you expose an airplane wing to rather heavy turbulences all day round (okay, sometimes there are lulls) for 20 years. The material is put under a lot of strain, and sometimes it may break. Also the vibrations of the turbulences may affect the generator. So wake models also reduce the possibility of (near) total loss on a wind turbine.
answered 35 mins ago
ErikErik
1314
add a comment |
The second slide of the presentation linked by you actually shows the issue with wake very clearly. You could also talk about turbulences instead of wake (my company actually does). Wake is simply the pertubation of the flow of the wind by wind turbines (or any other object, like hills, trees, buildings, airplane noses, the grill on the new SUV by Chrysler, etc). This pertubation can be modelled (please don't ask what the formulas are, I miserably failed that course in university).
So why is the prediction important? The first turbines in the direction of the oncoming wind are able to produce (slightly) more energy since the wind is streaming rather undisturbed. The second row of turbines can take less energy from the wind, since it was already slowed down and pertubed a bit by the first row. The same goes for any other turbines standing further back. So you need to know, how the wake most likely is shaped, considering topography and placement of turbines, in order to maximise the yield of you wind park.
Also, wake, or turbulences, can put stress on materials. Anyone who ever flew on a plane knows how turbulences can feel. Now imagine you expose an airplane wing to rather heavy turbulences all day round (okay, sometimes there are lulls) for 20 years. The material is put under a lot of strain, and sometimes it may break. Also the vibrations of the turbulences may affect the generator. So wake models also reduce the possibility of (near) total loss on a wind turbine.
answered 35 mins ago
ErikErik
1314
add a comment |
The second slide of the presentation linked by you actually shows the issue with wake very clearly. You could also talk about turbulences instead of wake (my company actually does). Wake is simply the pertubation of the flow of the wind by wind turbines (or any other object, like hills, trees, buildings, airplane noses, the grill on the new SUV by Chrysler, etc). This pertubation can be modelled (please don't ask what the formulas are, I miserably failed that course in university).
So why is the prediction important? The first turbines in the direction of the oncoming wind are able to produce (slightly) more energy since the wind is streaming rather undisturbed. The second row of turbines can take less energy from the wind, since it was already slowed down and pertubed a bit by the first row. The same goes for any other turbines standing further back. So you need to know, how the wake most likely is shaped, considering topography and placement of turbines, in order to maximise the yield of you wind park.
Also, wake, or turbulences, can put stress on materials. Anyone who ever flew on a plane knows how turbulences can feel. Now imagine you expose an airplane wing to rather heavy turbulences all day round (okay, sometimes there are lulls) for 20 years. The material is put under a lot of strain, and sometimes it may break. Also the vibrations of the turbulences may affect the generator. So wake models also reduce the possibility of (near) total loss on a wind turbine.
answered 35 mins ago
ErikErik
1314
The second slide of the presentation linked by you actually shows the issue with wake very clearly. You could also talk about turbulences instead of wake (my company actually does). Wake is simply the pertubation of the flow of the wind by wind turbines (or any other object, like hills, trees, buildings, airplane noses, the grill on the new SUV by Chrysler, etc). This pertubation can be modelled (please don't ask what the formulas are, I miserably failed that course in university).
So why is the prediction important? The first turbines in the direction of the oncoming wind are able to produce (slightly) more energy since the wind is streaming rather undisturbed. The second row of turbines can take less energy from the wind, since it was already slowed down and pertubed a bit by the first row. The same goes for any other turbines standing further back. So you need to know, how the wake most likely is shaped, considering topography and placement of turbines, in order to maximise the yield of you wind park.
Also, wake, or turbulences, can put stress on materials. Anyone who ever flew on a plane knows how turbulences can feel. Now imagine you expose an airplane wing to rather heavy turbulences all day round (okay, sometimes there are lulls) for 20 years. The material is put under a lot of strain, and sometimes it may break. Also the vibrations of the turbulences may affect the generator. So wake models also reduce the possibility of (near) total loss on a wind turbine.
answered 35 mins ago
ErikErik
1314
answered 35 mins ago
ErikErik
1314
answered 35 mins ago
ErikErik
1314
answered 35 mins ago
ErikErik
1314
1314
add a comment |
add a comment |
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