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A
awibroe1-Visitor
1-Visitor
September 26, 2017
Question

Propulsion and Resistance

  • September 26, 2017
  • 2 replies
  • 2609 views

Hell to all,

 

I am working on a bigger Ship Propulsion problem. 

 

I have got to one of those scenarios where it feels like I am missing an input in order to get the ultimate solution. 

 

Can anyone tell me if it is possible (by substitution) or otherwise (in the attached capture) to get values for either Rt or T if I have values for Vs, Va, w and t?

 

using MC's Symbolics it suggests not but it must be possible?

 

Thanks,

 

Andy.

2 replies

F
Fred_Kohlhepp23-Emerald I
23-Emerald I
September 26, 2017

Your equations can be reduced to the absurdanswr.PNG

M
MJG1-Visitor
1-Visitor
September 26, 2017

Capture.PNG

 

(MP3.1 attached)

A
awibroe1-VisitorAuthor
1-Visitor
September 26, 2017

Hi Guys,

 

Thanks very much. I think I have (through reading the question again) worked another method. 

 

I agree my post is not possible.

 

One thing I am interested in is MJG's definition of the two equations in square brakcets. How has this been done i.e. what is the region which the symbolic solve has then been applied to?

 

Andy.

M
MJG1-Visitor
1-Visitor
September 26, 2017

Andy,

The square brackets are a 2x1 matrix.

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