Nosecone dimming in OpenRocket?

[Peter Bech Svalgaard]

Is it possible to dim the nosecone in openrocket? how?
I read this was good for minimizing pressure drag.

 

[K'Tesh]

Dim? Don't you mean sim?

https://www.rocketryforum.com/threads/openrocket-nose-cone-library.61581/#post-648444

 

[Peter Bech Svalgaard]

I mean the bluff. The rounding.

 

[K'Tesh]

I'm not exactly sure what you mean by bluff... I suspect you're talking about blunting of some nosecones.

To do it, the nosecone is is the forward-most section. The best results have been achieved with power series shapes, then the remainder of the nosecone is then composed of one or more transitions required to create the desired shape.

Check out any of the nosecones from that link I posted in my previous reply.

 

[Peter Bech Svalgaard]

Thanks. I was trying to make a Von Karman shape with a spherically blunted tip. It isn't possible to get it completely right but you can get pretty close with the power series nosecone and a transition.

 

[mikec]

It's unlikely that this will simulate accurately, it will just look "pretty".

OR has a hard enough time with the drag properties of the cones that it supports directly.