CN209192148U - A kind of bionical marine vortex generator - Google Patents
A kind of bionical marine vortex generator Download PDFInfo
- Publication number
- CN209192148U CN209192148U CN201822127700.3U CN201822127700U CN209192148U CN 209192148 U CN209192148 U CN 209192148U CN 201822127700 U CN201822127700 U CN 201822127700U CN 209192148 U CN209192148 U CN 209192148U
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- Prior art keywords
- vortex generator
- ontology
- hull
- generator ontology
- vortex
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T70/00—Maritime or waterways transport
- Y02T70/10—Measures concerning design or construction of watercraft hulls
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- Percussion Or Vibration Massage (AREA)
Abstract
The utility model discloses a kind of bionical marine vortex generators, including the vortex generator ontology being mounted on hull, the vortex generator ontology is imitative shark fin-shaped, the upper side of vortex generator ontology towards the water surface is equipped with the groove structure of imitative shagreen, it is shiny surface towards water-bed downside, the groove structure is a plurality of groove set on vortex generator ontology upper side, the groove is parallel with hull surface fluid flow direction, it is vertical or at an acute angle, the leading flank of the vortex generator ontology towards fore direction of advance is the arcwall face of evagination, the trailing flank in the vortex generator ontology towards stern direction is the arcwall face of indent.The utility model disappears, and whirlpool effect is good, and long service life greatly reduces hull form resistance, reduces the energy consumption of vessel motion, enhance the effects of energy conservation and environmental protection of ship.
Description
Technical field
The utility model belongs to Ship Hydrodynamics field, is related to a kind of vortex generator, and in particular to one kind can change
The resistance performance of kind vortex generator, the bionical marine vortex generator for effectively eliminating disjunctor whirlpool.
Background technique
With the continuous improvement of ship speed and tonnage, the serious flow separation in ship stern boundary layer is had become inevitably
Problem causes grave danger to the safety and stability of ship.It is especially found in the real ship in part and ship model experiment, ship stern
The working environment of flow separation meeting severe exacerbation propeller, aggravates the unstability of propeller blade surface cavitation, occurs harmful
Disjunctor whirlpool phenomenon, cause the vibration and noise that hull is violent.Disjunctor whirlpool is that one kind intermittence between propeller and hull goes out
Existing vortex phenomenon can cause strong unsteady cavitation phenomenon once occurring simultaneously, and induce the vibration of hull severe overweight
And noise, influence the safety and comfort of vessel motion.
Existing marine vortex generator technology, can eliminate the disjunctor whirlpool phenomenon of hull, but be not concerned with vortex hair
The guide performance and resistance performance of raw device.After existing marine vortex generator installation, ship form drag and pressure will cause
The increase of poor resistance causes the increase of unnecessary Ship Resistance and energy consumption, influences the resistance performance of ship, and is vortexed
Generator is chronically under the impact of high-velocity fluid, is impacted to the service life and structural stability of vortex generator.
Utility model content
The purpose of this utility model is in view of the deficiency of the prior art, to improve research, and it is former to introduce bionics
Reason, proposes a kind of bionical marine vortex generator, can effectively eliminate disjunctor whirlpool phenomenon, reduces ship hull vibration and noise, and have
There is preferable guide performance, reduces resistance suffered by vortex generator, improve the resistance performance of ship.
Above technical problems of the utility model are mainly solved by the following technical scheme:
A kind of bionical marine vortex generator, including the vortex generator ontology being mounted on hull, it is characterised in that: institute
Stating vortex generator ontology is imitative shark fin-shaped, and the upper side of vortex generator ontology towards the water surface is equipped with the groove of imitative shagreen
Structure is shiny surface towards water-bed downside.
As an improvement, the groove structure be set on vortex generator ontology upper side a plurality of groove, the groove with
Hull surface fluid flows to parallel, vertical or at an acute angle.
As an improvement, the trench cross section is up-side down triangle or arc-shaped.
As an improvement, the maximum width of the trench cross section is 1-3cm.
As an improvement, the leading flank of the vortex generator ontology towards fore direction of advance is the arcwall face of evagination.
As an improvement, the trailing flank in the vortex generator ontology towards stern direction is the arcwall face of indent.
As an improvement, defining projected length of the vortex generator ontology on hull midstation plane is vortex generator sheet
Body height, vortex generator body height are 0.2-1 times of the fluid boundary layer thickness of hull surface at its place.
As an improvement, defining projected length of the vortex generator ontology on hull middle line face is vortex generator sheet
Body length, the ratio between length and height of vortex generator ontology are 1.5-4.
As an improvement, defining distance between the upper side and downside of vortex generator ontology is that vortex generator ontology is thick
Degree, the ratio between the thickness of vortex generator ontology and height are 0.1-0.5.
As an improvement, two vortex generator ontologies are as guiding device there are two the vortex generator ontologies
It is symmetrically mounted on hull two sides.
The utility model combines marine vortex generator in the prior art and bionics principle, is formed a kind of imitative
Raw marine vortex generator, compared with marine vortex generator in the prior art, resistance performance is more preferable, and the service life is longer,
It is more energy-saving and environmentally friendly.
Specifically, the utility model compared with prior art, has the advantages that
1, the utility model installation is simple, is suitable for various Ship Types, especially suitable for be also easy to produce disjunctor whirlpool phenomenon and
The ship that type and structure cannot change is had been processed into, disjunctor whirlpool phenomenon can be effectively eliminated, improve the stability of ship and is relaxed
Adaptive；
2, the utility model can optimize the guide performance of vortex generator, weaken the percussion of high-velocity fluid, increase whirlpool
The service life of flow-generator；
3, the utility model can reduce fluid and flow through suffered resistance when vortex generator surface, reduce the energy of vessel motion
Consumption enhances effects of energy conservation and environmental protection when vessel motion.
4, the utility model installation is simple, and hull surface of the mounted in pairs in front of propeller influent stream, is suitable for when use
Various Ship Types, especially suitable for being also easy to produce disjunctor whirlpool phenomenon and having been processed into the ship that type and structure cannot change.
Detailed description of the invention
Fig. 1 is the schematic diagram that the bionical marine vortex generator of the utility model is mounted on hull.
Fig. 2 is the utility model vortex generator ontology overlooking state schematic diagram.
Fig. 3 is that the utility model vortex generator ontology looks up status diagram.
Fig. 4 is the utility model vortex generator ontology rearview.
Fig. 5 is top view of the hull using the disjunctor whirlpool before the bionical marine vortex generator of the utility model.
Fig. 6 is side view of the hull using the disjunctor whirlpool before the bionical marine vortex generator of the utility model.
Fig. 7 is that hull uses the top view without disjunctor whirlpool after the bionical marine vortex generator of the utility model.
Fig. 8 is that hull uses the side view without disjunctor whirlpool after the bionical marine vortex generator of the utility model.
1- hull, 2- bottom end face, 3- leading flank, the trailing flank 4-, 5- upper side, the downside 6-, 7- thickness, 8- groove,
9- vortex generator ontology, 10- disjunctor whirlpool.
Specific embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described, need
To illustrate that in the utility model embodiment, before the front, back, left, right, up, down noun of locality is with hull direction of advance itself
Come what is illustrated, the above-mentioned noun of locality is used only for relative direction explanation for side, does not represent the restriction to scope of protection of the utility model,
Arrow is the opposite direction of hull driving direction namely hull surface fluid flow direction in attached drawing.
As shown in Figure 1, a kind of bionical marine vortex generator, the bionical marine vortex generator is guiding device, institute
Bionical marine vortex generator mounted in pairs is stated in 1 two sides of hull, the contour structures of the vortex generator ontology 9 are imitative shark
The shape of fin, the surface texture of the vortex generator ontology 9 are the groove structure of imitative shagreen.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the bottom end face 2 of the vortex generator ontology 9 is fixedly mounted on hull 1
On, the upper side 5 of bottom end face 2 is towards the water surface, and towards the bottom, the vortex is sent out for the downside 6 of the vortex generator ontology 9
The spacing folded by upper side 5 and downside 6 of thickness 7 of raw device ontology 9 forms, the bottom end of the vortex generator ontology 9
Face 2 is attached to 1 surface of hull, and the leading flank 3 of the vortex generator ontology 9 towards fore direction of advance is the arcwall face of evagination,
The trailing flank 4 in the vortex generator ontology 9 towards stern direction is the arcwall face of indent, 9 overall structure of vortex generator ontology
To be streamlined, wherein the upper side 5 of vortex generator ontology 9 towards the water surface is equipped with the groove structure of imitative shagreen, towards the bottom
Downside 6 is shiny surface.
Defining projected length of the vortex generator ontology 9 on 1 midstation plane of hull is that vortex generator ontology 9 is high
Degree, 9 height of vortex generator ontology be where it at 0.2-1 times of fluid boundary layer thickness of 1 surface of hull, in the present embodiment
Most preferably 0.8 times；
It is long for vortex generator ontology 9 to define projected length of the vortex generator ontology 9 on 1 middle line face of hull
Degree, the ratio between length of vortex generator ontology 9 and height are 1.5-4, most preferably 2 in the present embodiment；Define vortex generator sheet
Distance is the thickness 7 of vortex generator ontology 9, the thickness 7 of vortex generator ontology 9 between the upper side 5 and downside 6 of body 9
It is 0.1-0.5 with the ratio between height, most preferably 0.4 in the present embodiment.
The upper side 5 of the vortex generator ontology 9 is the groove structure of imitative shagreen, the groove of the groove structure
8 directions are in parallel, vertical or acute angle with 1 surfactant fluid direction of hull shown in arrow；The cross sectional shape of the groove 8 is three
It is angular or arc-shaped；The width of the groove 8 is the maximum width in 8 section of groove, the depth of the groove 8 be groove 8 most
The distance between the upper side 5 of low spot and vortex generator ontology 9, the area coverage of groove 8 described in the present embodiment are upside
0.6 times of 5 area of face, the ratio between the width of the groove 8 and depth are 1:1, and the groove of the triangular-section whirlpool effect that disappears is best, makees
For a kind of optimal whirlpool effect example that disappears, the maximum width of the trench cross section is 1-3cm.
Fig. 5 to Fig. 8 show the comparison using the hull 1 before and after the utility model and the disjunctor whirlpool 10 between propeller
Figure.From figs. 5 and 6, it can be seen that will appear apparent disjunctor between hull 1 and propeller when not using the utility model
Whirlpool 10；As can be seen from Figures 7 and 8, after using the utility model, the disjunctor whirlpool 10 between hull 1 and propeller is effectively disappeared
It removes, no longer occurs reflux and disjunctor whirlpool 10 between hull 1 and propeller；The vortex generator of imitative shark fins shape reduces high speed
The percussion of fluid can increase the service life of vortex generator；Surface groove structures can reduce fluid and flow through vortex
Resistance suffered by generator surface reduces the energy consumption of vessel motion, enhances effects of energy conservation and environmental protection when vessel motion.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (10)
1. a kind of bionical marine vortex generator, including the vortex generator ontology being mounted on hull, it is characterised in that: described
Vortex generator ontology is imitative shark fin-shaped, and the upper side of vortex generator ontology towards the water surface is equipped with the groove knot of imitative shagreen
Structure is shiny surface towards water-bed downside.
2. bionical marine vortex generator as described in claim 1, it is characterised in that: the groove structure is to occur set on vortex
The a plurality of groove of device ontology upper side, the groove flow to parallel, vertical or at an acute angle with hull surface fluid.
3. bionical marine vortex generator as claimed in claim 2, it is characterised in that: the trench cross section be up-side down triangle or
It is arc-shaped.
4. bionical marine vortex generator as claimed in claim 3, it is characterised in that: the maximum width of the trench cross section is 1-
3cm。
5. bionical marine vortex generator as claimed in claim 2, it is characterised in that: the vortex generator ontology is towards before fore
Leading flank into direction is the arcwall face of evagination.
6. bionical marine vortex generator as claimed in claim 2, it is characterised in that: the vortex generator ontology is towards stern side
To trailing flank be indent arcwall face.
7. bionical marine vortex generator as claimed in claim 2, it is characterised in that: define the vortex generator ontology in ship
Projected length on body midstation plane is vortex generator body height, and vortex generator body height is hull surface at its place
0.2-1 times of fluid boundary layer thickness.
8. bionical marine vortex generator as claimed in claim 7, it is characterised in that: define the vortex generator ontology in ship
Projected length on body middle line face is vortex generator body length, and the ratio between length and height of vortex generator ontology are 1.5-
4。
9. bionical marine vortex generator as claimed in claim 8, it is characterised in that: define the upper side of vortex generator ontology
Distance is vortex generator body thickness between downside, and the ratio between the thickness of vortex generator ontology and height are 0.1-0.5.
10. the bionical marine vortex generator as described in claim 1 to 9 any one, it is characterised in that: the vortex generator
There are two ontologies, and two vortex generator ontologies are symmetrically mounted on hull two sides as guiding device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822127700.3U CN209192148U (en) | 2018-12-18 | 2018-12-18 | A kind of bionical marine vortex generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822127700.3U CN209192148U (en) | 2018-12-18 | 2018-12-18 | A kind of bionical marine vortex generator |
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| Publication Number | Publication Date |
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| CN209192148U true CN209192148U (en) | 2019-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822127700.3U Expired - Fee Related CN209192148U (en) | 2018-12-18 | 2018-12-18 | A kind of bionical marine vortex generator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111551081A (en) * | 2020-04-24 | 2020-08-18 | 吉林大学 | Submarine-launched missile bionic warhead capable of weakening wave disturbance |
| CN112977713A (en) * | 2021-04-07 | 2021-06-18 | 浙江海洋大学 | Vortex generator for propeller type ship and ship |
-
2018
- 2018-12-18 CN CN201822127700.3U patent/CN209192148U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111551081A (en) * | 2020-04-24 | 2020-08-18 | 吉林大学 | Submarine-launched missile bionic warhead capable of weakening wave disturbance |
| CN112977713A (en) * | 2021-04-07 | 2021-06-18 | 浙江海洋大学 | Vortex generator for propeller type ship and ship |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190802 Termination date: 20191218 |