Search found 5 matches

by Ghayoor.Hassan
Sun May 06, 2018 6:48 pm
Forum: Tidal Current
Topic: Help needed regarding Harp_opt
Replies: 2
Views: 5592

Re: Help needed regarding Harp_opt

anyone ? jason jonkman ?
by Ghayoor.Hassan
Sat Apr 28, 2018 2:23 am
Forum: Airfoils
Topic: help needed in airfoil prep
Replies: 7
Views: 4712

Re: help needed in airfoil prep

Thank you for your help. I understand it now but one more thing that is bothering me is that how will we find local chord at each radial position.Is this not my final objective to find local chord and twist at 10 stations through Harp_Opt so how will i know what is the local chord at each station of...
by Ghayoor.Hassan
Fri Apr 27, 2018 7:31 am
Forum: Tidal Current
Topic: Help needed regarding Harp_opt
Replies: 2
Views: 5592

Help needed regarding Harp_opt

It is my first time using this software for designing small scale tidal turbine blades of 500W. I want to use NACA 63(3)-618 in my blade design. My settings in Harp_opt GUI are attached below. Now my first question is that how to use data of my own above mentioned airfoil in this software. However f...
by Ghayoor.Hassan
Fri Apr 27, 2018 6:30 am
Forum: Airfoils
Topic: help needed in airfoil prep
Replies: 7
Views: 4712

Re: help needed in airfoil prep

As you mentioned " The rotational augmentation (3DStall) model applies to a specific airfoil and station, so, the local chord and local nondimensional radial position (r/R) should be used" what do you mean that the model applied to specific station ? I am using one airfoil for entire blade...
by Ghayoor.Hassan
Tue Apr 24, 2018 4:49 am
Forum: Airfoils
Topic: help needed in airfoil prep
Replies: 7
Views: 4712

help needed in airfoil prep

I am first time using airfoil prep and i need to generate dat file to be later used in harp_opt for tidal turbine design. In the "3DStall" worksheetu, what values do we add for RPM i mean average rpm that we will have for our turbine ? Additionally what should i write in " chord"...

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