Tuesday 18 March 2014

9,000 Sq. Ft. House Design For Sale

Isometric View
 Isometric View
Rear Isometric View


6x bedrooms, 7x bathrooms, 2x Living Room, 1x Kitchen, 1x Drawing & Dining, 1x Store, Porch for 3x cars, 1x Servant area, 2x terraces.

If you need the CAD files or want to buy the design for commercial (Building, and selling) use contact via this account or mail to fadoobaba@live.com

 Right Side View
 Left Side View
 Front View
Rear View

4,500 Sq. Ft. House Design for Sale




4x bedrooms, 5x bathrooms, 2x Living Room, 1x Kitchen, 1x Drawing & Dining, Porch for 4x cars, 1x Servant area, 2x terraces.
If you need the CAD files or want to buy the design for commercial (Building, and selling) use contact via this account or mail to fadoobaba@live.com





9000 Sq. Ft. House Design for Sale

7x bedrooms, 8x bathrooms, 2x Living Room, 2x Kitchen, 1x Drawing & Dining, Porch for 4x cars, 1x Servant area, 2x terraces, 2 lawns.
If you need the CAD files or want to buy the design for commercial (Building, and selling) use contact via this account or mail to fadoobaba@live.com
 Front View
 Right View
 Top View
Isometric View

Dinner Table Design for Sale

8.75 ft. in dia. 2.5 ft. high, chairs 12, 1.625 ft. diameter, 1.5 ft. high.
If you need the CAD files or want to buy the design for commercial (Building, and selling) use, contact via this account or mail to fadoobaba@live.com




Monday 17 March 2014

Comparison between Down-Force and Drag Produced by a Legacy Spoiler VS a Spoiler with Tubercles (Humpback Whale Fin's Inspired)

Following data was obtained from Simulations carried out in SolidWorks Flow Simulation Premium.

Without Bumps

Air Speed in Km/h

Down Force in N

Drag in N

120
98.682
33.234
110
82.88
27.957
100
68.266
23.02
90
55.299
18.668
80
43.529
14.697
70
33.284
11.255
60
24.438
8.272
50
16.982
5.769
40
10.83
3.688
30
6.08
2.081
20
2.681
0.929
10
0.648
0.235


With Bumps

Air Speed in Km/h

Down Force in N

Drag in N

120
108.238
30.47
110
90.599
25.549
100
74.818
21.047
90
60.423
17.014
80
47.695
13.443
70
36.441
10.27
60
26.682
7.532
50
18.504
5.228
40
11.82
3.352
30
6.613
1.886
20
2.909
0.841
10
0.685
0.211

Comparison between Down Force and Drag

Air Speed in Km/h
Percentage Less Drag
Percentage More Down Force
120
8.32
8.83
110
8.61
8.51
100
8.57
8.76
90
8.86
8.48
80
8.53
8.73
70
8.75
8.66
60
8.95
8.41
50
9.38
8.23
40
9.11
8.38
30
9.37
8.06
20
9.47
7.84
10
10.21
5.4





It is clear that the spoiler with humpback whale's fin's inspired profile not only produce more down force at a particular velocity but also less drag.

Data for Spoiler without Humpback Whale's Fin's Inspired Bumps:

Wing Span: 100 cm
Chord Length: 17.5 cm
Air Velocity: 0-120 Km/h head on
Vertical Pitch: 22.5 Degree Downwards
Gravity Considered
Fluid: Dry Air at STP
Mesh Settings: Coarse (3/10)


Data for Spoiler with Humpback Whale's Fin's Bumps:

Wing Span: 100 cm
Chord Length Large: 17.5 cm
Chord Length Small: 15.75 cm
Air Velocity: 0-120 Km/h head on
Vertical Pitch: 22.5 Degree Downwards
Gravity Considered
Fluid: Dry Air at STP
Mesh Settings: Coarse (3/10)



Let's now take a look at visual representation of data.


This Plot Shows Air Velocity VS Drag, Down-Force by the Spoiler without Bumps


This Plot Shows Air Velocity VS Drag, Down-Force by the Spoiler with Bumps

As you can see from above two plots; the spoiler with the whale's fin like profile generates more down force and less drag.



This Plot Shows Air Velocity VS Down-Force Generated by the Spoilers

The green line represents the Down-Force generated by the spoiler with whale's fin's inspired design. It is around eight percent more at each velocity.


This Plot Shows Air Velocity VS Drag Generated by the Spoilers

The green line represents the Drag generated by the spoiler with whale's fin inspired design. It is around nine percent less at each velocity.


This Plot Shows Air velocity VS Down-Force to Drag Ratio

It is clear from this plot that Down-Force to Drag ratio is around sixteen percent more for whale's fin's inspired spoiler than the legacy one at each velocity.



This Plot Shows Air Flow Around the Spoiler without Bumps at 120 Km/h from the Right Side.


This Plot Shows Air Flow Around the Spoiler without Bumps at 120 Km/h.


This Plot Shows Air Flow Around the Spoiler with bumps at 120 Km/h.


This plot Shows Air Flow Around the Spoiler with bumps at 120 Km/h.

A simple stress analysis was carried out on both spoilers at 120 Km/h. FOS was greater than 1 for both cases.

Advantages of Spoilers:

The main benefit of installing a spoiler on a car is to help it maintain traction at very high speeds. Particularly at speeds around 90 Km/h. A car with a spoiler installed will be easier to handle at highway speeds. Rear spoilers such as the one's analysed in this study; push the back of the car down so the tires can grip the road better and increase stability. It also increases the braking ability of the car.

To build the prototypes and complete the study further, I need donations. To donate your part send an email to fadoobaba@live.com , tweet @fadoobaba, PM at https://www.facebook.com/ThreeDimensionalDesign orhttps://grabcad.com/fahad.rafi.butt or comment with your contact details and I will contact you!. Thank you for reading!

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