CN1547177A - Free vortex, point sink and point vortex superposition demonstrator - Google Patents
Free vortex, point sink and point vortex superposition demonstrator Download PDFInfo
- Publication number
- CN1547177A CN1547177A CNA2003101065274A CN200310106527A CN1547177A CN 1547177 A CN1547177 A CN 1547177A CN A2003101065274 A CNA2003101065274 A CN A2003101065274A CN 200310106527 A CN200310106527 A CN 200310106527A CN 1547177 A CN1547177 A CN 1547177A
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- vortex
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- point
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Abstract
The invention refers to a kind of demonstrating device which can demonstrate the free vortex combined with the Rankine compound vortex, the free vortex, and point unit vortex. The structure includes a supporting pole, a water storage box, a supporting board, a bottom pipe, a cylinder water box, a return line, a pump. The pump is set in the lower water storage box, the pump is connected to one end of the water inlet, the other end of the inlet pipe is connected to the cylinder water box, the return line is connected to between the water storage box and the cylinder water box, there sets a bottom hole pipe in the centre of the cylinder box bottom, the cylinder water box is set on the supporting board, which is supported by another supporting pole, there sets with valves on the bottom hole pipe, the return line, and the water inlet. The merits of the invention are: the structure is simple, easy and convenient to be produced; it can demonstrate the Rankine compound vortex, the free vortex and the point unit vortex.
Description
Technical field
What the present invention relates to is a kind of free vortex demonstrator of demonstrating Rankine combined vortex, free vortex and point sink, point unit vortex stack.Belong to the hydraulics technical field.
Background technology
Prior art can only be demonstrated free vortex, and its structure mainly is that the bottom centre at cylinder has a circular hole, and it can make the water surface on top form free vortex naturally when converge at the center.
Summary of the invention
The objective of the invention is to the defective of depositing, propose a kind of free vortex of can demonstrating and to demonstrate Rankine combined vortex and point sink and point unit vortex superposition demonstrator again at above-mentioned.Technical solution of the present invention: its structure comprises support bar, water storage tank, back up pad, bottom outlet pipe, cylinder tank, return pipe, water pump composition, wherein water pump is located in the water tank of bottom, water pump taps into an end of water pipe, the other end and the cylinder tank of water inlet pipe are tangent, its tangent formation junction, return pipe is connected between water storage tank and cylinder tank, the bottom outlet pipe is equipped with in the bottom centre of cylinder tank, cylinder tank is placed on the back up pad, back up pad is equipped with valve by they sup-port on bottom outlet pipe, return pipe, the water inlet pipe.Advantage of the present invention: simple in structure, making, easy to use, can demonstrate the stack of Rankine combined vortex, free vortex and point sink and point unit vortex intuitively.
Description of drawings
Accompanying drawing 1 is a structural representation of the present invention.
Accompanying drawing 2 is cylinder and water inlet pipe junction synoptic diagram (this junction makes current make circular motion)
Accompanying drawing 3 is free vortex synoptic diagram
Accompanying drawing 4 is point sink and point unit vortex stack synoptic diagram.
Among the figure 1 is support bar, the 2nd, water storage tank, the 3rd, back up pad, the 4th, bottom outlet pipe, the 5th, cylinder tank, the 6th, the junction, the 7th of cylinder tank 5 and water inlet pipe 8, return pipe, the 8th, water inlet pipe, the 9th, water pump.
Embodiment
The contrast accompanying drawing, water pump 9 is located in the water storage tank 2, water pump 9 taps into an end of water pipe 8, another termination cylinder tank 5 of water inlet pipe 8, return pipe 7 is connected 5 of water storage tank 2 and cylinder tanks, and bottom outlet pipe 4 is equipped with in the bottom centre of cylinder tank 5, and cylinder tank 5 is placed on the back up pad 3, back up pad 3 supports by support bar 1, on bottom outlet pipe 4, return pipe 7, the water inlet pipe 8 valve is housed.The course of work: start water pump 9 water of reserve tank 2 is sent into cylinder tank 5 to certain water level by water inlet pipe 8, the valve that be contained on bottom outlet pipe 4, the return pipe 7 this moment is closed.Then, close valve on the water inlet pipe 8.Open the valve on the bottom outlet pipe 4, in cylinder tank 5, form free vortex, Free Surface position h this moment
H=h
o-c
2 4/
2gR
2C
4=v
EThe r=constant
H in the following formula
oBe the height of unlimited distance free-water level to the r axle, v
EBe velocity at tangential component, g is an acceleration, r is a radius.
The stream function of free vortex
When radius r=o is that valve on the bottom outlet pipe 4 is closed suddenly and formed Rankine combined vortex section.
Regulate the valve on the water inlet pipe 8, current are evenly entered and tangentially make circular motion, flow out through bottom outlet simultaneously and form point sink and point unit vortex superpose (as Fig. 4) along cylindrical wall.
Claims (1)
1, free vortex, point sink and point unit vortex superposition demonstrator, it is characterized in that comprising support bar (1), water storage tank (2), back up pad (3), bottom outlet pipe (4), cylinder tank (5), return pipe (7), water pump (9) is formed, wherein water pump (9) is located in the water storage tank (2), water pump (9) taps into an end of water pipe (8), the other end of water inlet pipe (8) and cylinder tank (5) are tangent, its tangent formation junction (6), return pipe (7) is connected between water storage tank (2) and cylinder tank (5), bottom outlet pipe (4) is equipped with in the bottom centre of cylinder tank (5), cylinder tank (5) is placed on the back up pad (3), back up pad (3) supports by support bar (1), bottom outlet pipe (4), return pipe (7), water inlet pipe is equipped with valve on (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310106527 CN1217302C (en) | 2003-12-04 | 2003-12-04 | Free vortex, point sink and point vortex superposition demonstrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310106527 CN1217302C (en) | 2003-12-04 | 2003-12-04 | Free vortex, point sink and point vortex superposition demonstrator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1547177A true CN1547177A (en) | 2004-11-17 |
| CN1217302C CN1217302C (en) | 2005-08-31 |
Family
ID=34334221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200310106527 Expired - Fee Related CN1217302C (en) | 2003-12-04 | 2003-12-04 | Free vortex, point sink and point vortex superposition demonstrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1217302C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979983A (en) * | 2010-05-26 | 2011-02-23 | 上海大学 | Experimental device of free surface vortex forming and evolving mechanism |
| CN101980323A (en) * | 2010-11-12 | 2011-02-23 | 合肥通用机械研究院 | Device for demonstrating eddy phenomenon |
| CN108597323A (en) * | 2018-05-03 | 2018-09-28 | 江苏科技大学 | A kind of experimental provision and its operating method of simulation Rankine combined vortex |
-
2003
- 2003-12-04 CN CN 200310106527 patent/CN1217302C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979983A (en) * | 2010-05-26 | 2011-02-23 | 上海大学 | Experimental device of free surface vortex forming and evolving mechanism |
| CN101979983B (en) * | 2010-05-26 | 2012-11-07 | 上海大学 | Experimental device of free surface vortex forming and evolving mechanism |
| CN101980323A (en) * | 2010-11-12 | 2011-02-23 | 合肥通用机械研究院 | Device for demonstrating eddy phenomenon |
| CN108597323A (en) * | 2018-05-03 | 2018-09-28 | 江苏科技大学 | A kind of experimental provision and its operating method of simulation Rankine combined vortex |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1217302C (en) | 2005-08-31 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |