Volgstroom

English translation: stern wake/following wake (debated)

GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
Dutch term or phrase:Volgstroom
English translation:stern wake/following wake (debated)
Entered by: Lianne van de Ven

15:30 Oct 20, 2013
Dutch to English translations [PRO]
Ships, Sailing, Maritime
Dutch term or phrase: Volgstroom
Op zoek naar de Engelse vertaling voor volgstroom in de volgende context:

"Om het schip tot stilstand te brengen moet je het op tijd laten uitdrijven. De volgstroom blijft het schip namelijk vooruit duwen"
SDT90
stern wake
Explanation:
Ik hou het bij stern wake als een meer specifieke vertaling van volgstroom.

"It's perfectly fine to just hop on someone's bow or stern wake. Just slip right in. Now, if they keep trying to shuck you off their wake, then I wouldn't feel all that obligated to trade off their wake riding"
http://www.hobiecat.com/forums/viewtopic.php?t=12032

"A stern wake is the phosphorus trail that a ship leaves as it travels through
the water. Unlike the bow wave, it is a calm, white-
colored water. As a ship travels fast, the stern wake
increases in length; when the ship slows down, the stern
wake decreases.
http://navyadministration.tpub.com/12968a/css/12968a_31.htm

Likewise! Just back off the power, let it settle some and then, just as the wake approaches the stern, give it a little throttle to jump ahead of it.
http://www.smwebhead.com/phpBB3/viewtopic.php?f=6&t=1267&st=...

Sudden deceleration often allows the stern wake to overtake and swamp the boat by washing over the transom.
http://dnr.wi.gov/news/weekly/Article_Lookup.asp?id=327

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Note added at 22 hrs (2013-10-21 13:52:44 GMT)
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Ps: de laatste twee referenties geven precies de context waarnaar de vrager op zoek is.
Selected response from:

Lianne van de Ven
United States
Local time: 02:51
Grading comment
3 KudoZ points were awarded for this answer



Summary of answers provided
4 +1frictional wave
Barend van Zadelhoff
4stern wake
Lianne van de Ven
4wake
Michael Beijer
Summary of reference entries provided
wake
Lianne van de Ven

Discussion entries: 114





  

Answers


22 hrs   confidence: Answerer confidence 4/5Answerer confidence 4/5
stern wake


Explanation:
Ik hou het bij stern wake als een meer specifieke vertaling van volgstroom.

"It's perfectly fine to just hop on someone's bow or stern wake. Just slip right in. Now, if they keep trying to shuck you off their wake, then I wouldn't feel all that obligated to trade off their wake riding"
http://www.hobiecat.com/forums/viewtopic.php?t=12032

"A stern wake is the phosphorus trail that a ship leaves as it travels through
the water. Unlike the bow wave, it is a calm, white-
colored water. As a ship travels fast, the stern wake
increases in length; when the ship slows down, the stern
wake decreases.
http://navyadministration.tpub.com/12968a/css/12968a_31.htm

Likewise! Just back off the power, let it settle some and then, just as the wake approaches the stern, give it a little throttle to jump ahead of it.
http://www.smwebhead.com/phpBB3/viewtopic.php?f=6&t=1267&st=...

Sudden deceleration often allows the stern wake to overtake and swamp the boat by washing over the transom.
http://dnr.wi.gov/news/weekly/Article_Lookup.asp?id=327

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Note added at 22 hrs (2013-10-21 13:52:44 GMT)
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Ps: de laatste twee referenties geven precies de context waarnaar de vrager op zoek is.

Lianne van de Ven
United States
Local time: 02:51
Native speaker of: Native in DutchDutch
PRO pts in category: 46

Peer comments on this answer (and responses from the answerer)
agree  Michael Beijer: Yup. I suppose this might be more precise. Although it is probably quite clear from the source text which wake we are talking about (i.e., that it's not the 'bow wake' that will propel the ship forward if the ship stops).
39 mins

disagree  freekfluweel: Niets persoonlijks maar volgens mij moeten we weer terug naar het oorspronkelijke woord en voor opname in het glossarium: volgstroom -> following wake / Voor Engelstaligen is daar ook niets mis mee maar het kan specifieker...!
2 days 1 hr
  -> I am not yet sure about "following wake" but I know for sure that there is nothing wrong with wake or stern wake.

neutral  Barend van Zadelhoff: 'stern wake' = kielzog = heel iets anders dan 'volgstroom'
6 days
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5 mins   confidence: Answerer confidence 4/5Answerer confidence 4/5
volgstroom
wake


Explanation:
source: Groot Woordenboek Industrie & Techniek (GWIT)
see also: http://en.wikipedia.org/wiki/Wake

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Note added at 6 mins (2013-10-20 15:36:39 GMT)
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definition: 'A wake is the region of recirculating flow immediately behind a moving or stationary solid body, caused by the flow of surrounding fluid around the body.' (http://en.wikipedia.org/wiki/Wake )

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Note added at 1 day23 hrs (2013-10-22 14:48:19 GMT)
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or: 'wake current' or 'wake flow' (sources: IATE + GWIT)

Michael Beijer
United Kingdom
Local time: 07:51
Native speaker of: Native in EnglishEnglish
PRO pts in category: 15

Peer comments on this answer (and responses from the answerer)
agree  Alexander Schleber (X): The only one!
10 mins
  -> Thanks Alexander!

disagree  freekfluweel: Niets persoonlijks maar volgens mij moeten we weer terug naar het oorspronkelijke woord en voor opname in het glossarium: volgstroom -> following wake Bovendien is dit te vaag en niet goed.
2 days 23 hrs
  -> welles!

neutral  Barend van Zadelhoff: 'wake' is te vaag en wordt doorgaans voor 'kielzog' gebruikt. Zie discussion entry: wake <-> following wake
14 days
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1 day 8 hrs   confidence: Answerer confidence 4/5Answerer confidence 4/5 peer agreement (net): +1
frictional wave


Explanation:
frictional current
frictional wake current
following wake
following current

Het gaat om het water dat wordt meegesleept door de wrijving (friction) tussen de scheepsromp en het water.

1) Surface Friction, Frictional Resistance

.......
When a body is moving through the water the particles in immediate contact with the surface are set in motion by being partially dragged along with the surface by the friction between the water and the surface.
......
There will thus be a region of disturbed particles of water; and if we imagine a line bounding this region, and separating the disturbed water from undisturbed water, we have what is called the "zone of frictional disturbance". It is impossible to determine accurately the motion of the particles in the disturbed zone, but from practical experiments on ship models or on thin boards observations can easely be made to find the speed of the following wake. In every case of a body towed through the water a definite forward current is observed astern of the body. To this current the name of "frictional wave" is given.
In the chapter of propellers it will be seen that the speed of this wake in a vessel may range from 5 to 15 procent of the speed of the ship.

http://tinyurl.com/nev8pzd

The friction of the ship on the water during its passage causes a wake to follow her, so that the screw-propeller acts on water already set in motion. The velocity of this stream must therefore be considered, in order to obtain the real slip, which represents the true value of the backward velocity impressed on the water by the propeller.
The speed at which the water follows the ship depends on her form, and is difficult to ascertain, so that the slip generally referred to is the apparent slip only and not the real slip.

Mr. Froude proved by experiment that if a single screw were placed, from one- third to one-quarter of the extreme breadth of the ship, clear from the stern, the increase of resistance due to its action was only one-fifth of that ordinarily produced. Even omitting the practical objections to such a position, it must not be thought, however, that such a change would be entirely beneficial, for although the ship's resistance would be reduced, yet the propeller would be further removed from the following wake of water, so that it is less able to utilise the energy existing in this wake. The initial velocity of the following wake causes the thrust of the propeller to be greater than if the water were undisturbed.

Owing to the friction between the skin of the vessel and the water, the propeller works in a current moving in the same direction as the vessel, and this current or 'wake' increases the propeller efficiency. If the vessel were not propelled by a screw, the whole of the energy of the wake would be lost, but the screw propeller turns a certain amount of the energy of the wake into useful work, thus increasing the efficiency. However, the whole of the energy of the frictional wake has to be provided by the propelling machinery, and it is, at moderate speeds, the principal source of loss, even allowing for what is regained by the action of the screw.

http://tinyurl.com/p4r8p92

Frictional current: Water dragged along by a vessel when due to friction with her underwater surface. Reduces effectiveness of rudder.

http://www.dictionary-of-sea.com/definition-meaning/friction...

frictional wake current

http://tinyurl.com/nfdwjp5

WHAT IS A FRICTIONAL WAKE CURRENT?

A VESSEL MOVING THROUGH WATER DRAGS SOME OF THE WATER ALONG BECAUSE OF THE FRICTION BETWEEN THE SKIN OF THE SHIP AND WATER.

http://www.flashcardmachine.com/coxswain-utb.html

Owing to the "frictional wake," or the following current set in motion by the friction of the wetted skin, the uniformity of the race or column of water acted on by the screw is still further disturbed. The "frictional wake" is not a uniform current, but the strongest close to the hull, and near the surface, diminishing outwards and downwards.

http://tinyurl.com/k66e66a

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Note added at 15 days (2013-11-04 15:44:20 GMT) Post-grading
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Please note:

My answer is based on this definition of 'volgstroom':

http://library.kiwix.org/wikipedia_nl_all/A/Volgstroom.html

The discussion made me find out that 'following wake' as a translation for 'volgstroom' is more accurate than 'frictional wake'.
(wave rather than wak is obviously a typo (see the relevant reference, amongst many other things)

So I would suggest use 'following wake' rather than 'friction wake' as a translation for 'volgstroom' as defined in the Wikipedia article concerned.

Obviously, if you followed my contributions, I am telling you something that you already know, which may be annoying.

Barend van Zadelhoff
Netherlands
Local time: 08:51
Native speaker of: Native in DutchDutch
PRO pts in category: 15

Peer comments on this answer (and responses from the answerer)
agree  freekfluweel: following wake
14 hrs
  -> Dank je, Freek.

neutral  Michael Beijer: The reason I disagree with this answer is that you nowhere make clear that you have changed your original answer from 'frictional wave' (via 'frictional wake') to 'following wake'. This should be clearly stated in the answer itself. (Changed to neutral.)
15 hrs
  -> Things have been made clear in many different places, which you might have noticed, as you constantly participated in the discussion (dialogue of the deaf).
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Reference comments


2 hrs peer agreement (net): +2
Reference: wake

Reference information:
In het Engels wordt alle water rondom een varend schip dat in beweging wordt gezet "wake" genoemd. http://www.steelnavy.com/WavePatterns.htm

Volgstroom (en hekgolf) is de benaming voor de transversale golven die achter een schip ontstaan: "In het vlak van de schroef ontstaat daardoor een lagere snelheid dan de vaart van het schip. Daarnaast wordt er door het varen een golf opgewekt waarvan de golftop een voorwaartse snelheid heeft en een golfdal een achterwaartse snelheid." http://nl.wikipedia.org/wiki/Volgstroom

Zie in het eerste artikel ook, golfpatronen.
Next, there are the transverse waves which are originally perpendicular to the ship's line of motion, although the further away from the ship they get the more they tend aft due to friction.

Ik heb het specifieke voorstuwende effect (stuwing) van de volgstroom nog niet gevonden. Ik weet wel dat het in het algemeen gewoon wake wordt genoemd.


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Note added at 2 hrs (2013-10-20 17:35:41 GMT)
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... nog niet gevonden - in het Engels, bedoel ik dus.

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Note added at 7 days (2013-10-28 05:11:13 GMT) Post-grading
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Omschrijvingen van volgstroom:

Positieve stroom
Wanneer de negatieve stroom de kuil achter het schip niet snel genoeg kan vullen, wordt de kuil door water van achter het schip gevuld. De stroming van dit van achter komende water noemen we de volgstroom of positieve stroom.
From: http://www.efm.nl/Website Content/Downloads/Checklisten/De w...

Hier wordt hetzelfde gezegd:
http://langstuig.wiki-site.com/index.php/Manoeuvreren

Op p. 128 van dit document staat een goede afbeelding (fig 4) van volgstroom:
http://www.scribd.com/doc/72854577/Aantasting-van-dwarsprofi...
De tekst luidt: "In de primaire scheepsgolf treedt een waterbeweging op in de richting van de boeg naar het hek van het schip, welke ter hoogte van het hek van richting om- keert. Achter het hek wordt deze stroming volgstroom genoemd. Boven het talud, voorafgegaan door de haalgolf, treedt de taludvolgstroom op. De volgstroom achter het hek is via de volgstroom naast het schip met de taludvolgstroom verbonden."

In dit document een gelijke omschrijving van volgstroom, met een fotootje erbij.
From: http://www.scribd.com/document_downloads/direct/61635429?ext...

Lianne van de Ven
United States
Native speaker of: Native in DutchDutch
PRO pts in category: 46

Peer comments on this reference comment (and responses from the reference poster)
agree  freekfluweel: Precies! Daar zit een verschil tussen! De Amerikaan Taylor heeft er zelfs een formule voor bedacht dus moet er ook een specifieke term voor bestaan.
17 hrs
agree  Michael Beijer: I don’t understand why Freek thinks that the Asker’s source text would call for an English term for 'het … voorstuwende effect (stuwing) van de volgstroom'.
18 hrs
  -> Well, I would like to see such a term too. What is the English for hekgolf? From the many references I have looked at, ALL moving water around a ship is called wake. Then you have bow wake, stern wake, and wash, which we might call kielzog, also wake.
neutral  Barend van Zadelhoff: Je hebt het voornaamste aspect van 'volgstroom' niet begrepen.
7 days
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