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Search: Posts Made By: Seiran
Showing results 1 to 8 of 8
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Forum: Tech Log
2nd Jul 2015, 02:17
Replies: 30
Views: 10,432
Posted By Seiran

Does the disc area of the propeller have anything...

Does the disc area of the propeller have anything to do with the mass and velocity of the propeller outflow?

Assuming 100hp is transmitted through a 2m diameter prop and the same 100hp on another...
Forum: Tech Log
1st Jul 2015, 10:26
Replies: 30
Views: 10,432
Posted By Seiran

Thanks again tdracer, With regards to the...

Thanks again tdracer,

With regards to the two and four blade prop question, the larger two blade prop would have a larger disc area, would this have an effect on the mass and speed of the...
Forum: Tech Log
1st Jul 2015, 03:23
Replies: 30
Views: 10,432
Posted By Seiran

So tdracer, Basically the ducting in the...

So tdracer,

Basically the ducting in the turbofan allows it to accelerate the air faster (ignore the jet thrust from turbine exhaust)?

In my above scenario with the two blade and the four...
Forum: Tech Log
1st Jul 2015, 02:40
Replies: 30
Views: 10,432
Posted By Seiran

full pattern, thanks for your answer, I...

full pattern, thanks for your answer,

I realised how to word my second question a bit better.

Two identical hp engines with appropriate gearing for the following: assume a larger diameter two...
Forum: Tech Log
1st Jul 2015, 02:03
Replies: 30
Views: 10,432
Posted By Seiran

Ok for this question lets assume two gas turbines...

Ok for this question lets assume two gas turbines of the same power, one driving a propeller and one driving a fan (for this assume basically a normal turbofan but with duct removed). (The numbers I...
Forum: Tech Log
1st Jul 2015, 01:46
Replies: 30
Views: 10,432
Posted By Seiran

Thanks for replying everyone, I have read that...

Thanks for replying everyone, I have read that thread tdracer and whilst a good thread, doesn't quite answer my question.

I will try and think of how to better word my question but I am trying to...
Forum: Tech Log
30th Jun 2015, 03:56
Replies: 30
Views: 10,432
Posted By Seiran

Could it be that the turbofan is able to produce...

Could it be that the turbofan is able to produce a faster airflow because of a convergent duct after the fan that speeds the airflow up? (I'm not sure if that is the case)

So basically a turbofan...
Forum: Tech Log
30th Jun 2015, 03:33
Replies: 30
Views: 10,432
Posted By Seiran

Turboprop, turbofan, propfan

Hello everyone,

I'm doing some research at the moment of why faster aircraft use turbofans compared to slower aircraft using turboprops. I understand the theory that the fan in a turbofan...
Showing results 1 to 8 of 8


 
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