Amr Morsi Posted August 1, 2011 Share Posted August 1, 2011 How much viscosity is a part of the air resistance (naming)? Although surface is much away, surface of air and atmosphere? 1 Link to comment Share on other sites More sharing options...
Ophiolite Posted August 1, 2011 Share Posted August 1, 2011 The translator program failred on this occassion. I have no idea what you are asking. 1 Link to comment Share on other sites More sharing options...
Amr Morsi Posted August 1, 2011 Author Share Posted August 1, 2011 I mean for an aircraft. The surface of earth is much away, from the aircraft. I think it is still there, but this contradicts known laws of viscosity. 1 Link to comment Share on other sites More sharing options...
CaptainPanic Posted August 1, 2011 Share Posted August 1, 2011 The surface of the earth is not relevant. The surface of the airplane, and the difference between the speed of the airplane and the air is the only thing that matters. 1 Link to comment Share on other sites More sharing options...
Fuzzwood Posted August 1, 2011 Share Posted August 1, 2011 Ah you are asking about shear stress here: fluidum between 2 solid surfaces. Am I right? If so, it will not have any significant effect. 2 Link to comment Share on other sites More sharing options...
ewmon Posted August 1, 2011 Share Posted August 1, 2011 Perhaps the OP refers to ground effect. 1 Link to comment Share on other sites More sharing options...
Ophiolite Posted August 1, 2011 Share Posted August 1, 2011 (edited) Off topic post: I am at a loss to see how any of the posts in this thread merit a + award. I'm not complaining, just infinitely puzzled. For consistency someone ought to give this post a + also. Edited August 1, 2011 by Ophiolite 1 Link to comment Share on other sites More sharing options...
Amr Morsi Posted August 1, 2011 Author Share Posted August 1, 2011 What laws do you know about viscosity, Ophiolite? 1 Link to comment Share on other sites More sharing options...
Ophiolite Posted August 2, 2011 Share Posted August 2, 2011 I'm not smart enough to handle Navier-Stokes, so I just play around with approximations afforded by Bingham Plastic and Power Law models, which is fine for dealing with the hydraulics of drilling fluids. Link to comment Share on other sites More sharing options...
Amr Morsi Posted August 2, 2011 Author Share Posted August 2, 2011 Great! Thanks. 1 Link to comment Share on other sites More sharing options...
Hal. Posted August 2, 2011 Share Posted August 2, 2011 Amr , do you think that the viscosity of what is surrounding an aircraft as it is in flight should include a factor which is dependent on the surface of the ground for it's value ? If so , why ? Link to comment Share on other sites More sharing options...
Amr Morsi Posted August 7, 2011 Author Share Posted August 7, 2011 It is either this either air-layers. But, viscosity is known to contain higher orders of velocity, rather than linear and square. Are there 2 reasons for viscosity? To solids and to layers of fluids. Or this is for liquids and this for gases? Link to comment Share on other sites More sharing options...
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