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Aburaya Narimasa Ogawa Tsukasa Kita Hiroki Takeuchi Yoshiki.

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Presentation on theme: "Aburaya Narimasa Ogawa Tsukasa Kita Hiroki Takeuchi Yoshiki."— Presentation transcript:

1 Aburaya Narimasa Ogawa Tsukasa Kita Hiroki Takeuchi Yoshiki

2  Cars and planes play an important role.  In order to know the effect of wind flow has on the object.  Wind tunnel experiments using circulation type tunnel.

3  Creating a DC-type wind tunnel  Visualization of wind flow  Impact of wind flow on the wing  Pursuit of the ideal shape for a wing

4 Circulation type wind tunnel Ebara Hamada Blower Co., Ltd. From the homepage West Japan Fluid Engineering Inc. From the homepage

5 Advantages ・ Simple structure (low cost) ・ Performance and high rectification ・ Can be miniaturized Drawbacks ・ Susceptible to effects from the outside Circulation type wind tunnel Advantages ・ Less susceptible to external ・ Energy Conservation Drawbacks ・ Complex structure (high-cost)

6 (mm)

7  For uniform flow

8 Smoke machine (ANTARI Z-800 Ⅱ )

9  When there is not a rectifier →Scattered by the wind measurement location  When there is a rectifier →Wind speed is slower and stable

10  Unification at 12V  Change the wind direction  Attach the blower to one side only

11 DT-8880 hot-wire anemometer

12

13 There's not a rectifier There is a rectifier Center Center(Upper side ) Center(Lower side) Upper left Left of center Lower left Upper right Right of center Lower right

14 There's not a rectifier There is a rectifier Center Center(Upper side ) Center(Lower side) Upper left Left of center Lower left Upper right Right of center Lower right

15 Blowing → Wind speed is unstable Inhaling → Relatively stable ↓ We chose to use the inhaling method.

16 Model of car Videos of the wing model

17  We have confirmed the effect of laminar flow by rectifier.  Wind flow is flowing along the objects.  We have found the wind that was peeling at the rear of the wing.

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19  Wind speed difference is born from the difference in distance above and below the wing

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22  There is a possibility that the wind speed difference causes wings to fly.

23  Relationship between elevation and separation of the air flow  Relationship between elevation and lift  Ideal shape for a wing

24 Thank you for listening!


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