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dragforcequeen

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  1. That is a brilliant, well thought out answer. Thank you so much!
  2. So I have been looking into heat dissipation and aside from silver, I have narrowed it down to aluminum and copper heat tape. I have heard that copper heat tape is preferred for heat dissipation but it has a lower specific heat than aluminum. My initial theory was that the higher the specific heat, the faster rate of dissipation. Am I missing something? Should I continue with using copper tape for heat dissipation. Any to all advice is greatly appreciated, thank you!
  3. This may be a relatively dumb question but I would rather ask it than not at all. I have an ultrasonic humidifier. If anyone has ever owned one, you've probably heard that distilled water is the best to use for these devices to reduce mineral build-up a well as minerals entering the air. My question is, how does vaporized distilled water act in the air? I know it absorbs minerals and CO2 when it is consumed or in a liquid form but does this rule apply to it being airborne? The reason I ask is because I have plants that as any person with a general amount of biology knowledge would know, absorbs CO2. Plus you never know what health hazards could also surface. Thanks for any help!
  4. Yeah that is exactly what I was thinking as well. My first guesses being weight and velocity. Thank you sir.
  5. I think my initial question was too wordy. I guess my primary concern was how much lean is associated with bicycles as opposed to motorcycles in a turn and why that is. Thanks again for all of your help.
  6. Thanks for the good start Studiot. It seems to touch on a couple of things but it is such a specialized topic that it would take some digging to find an answer.
  7. Simple question to answer I'm sure: As the cold months (hopefully) come to a close, motorcyclists everywhere come out of hibernation to work on their bike, getting ready for riding season. In the meantime, I have been riding my bicycle in order to hone my skills but I noticed something bizarre.... As I countersteer and take the lean to make a proper turn, I have a tendency to lean my body; a normal response for a motorcycle rider. However, I noticed its not necessary. Contemplating why this is, I came up with a couple possible reasons but I'm not sure. - Weight (Bike and person) - Velocity - Gyroscopic Force Anyone wish to shed light on my dilemma? Every time I coutersteer into a turn on my motorcycle I almost always have to do some sort of leaning to compensate for weight displacement. I know the higher the speed the more I need to lean but I'd like a scientific, more refined explanation. Thanks guys.
  8. Wow guys this information is overwhelmingly great! Thank you! I plan to read more of it, I've been super busy with getting ready for college, but once I find time later today I definitely will consider all of what has been said! Again, thank you!
  9. Thanks for the info Bignose! Yeah, three of the abstracts I've pulled use both CFD's and structural models. Right now I'm just looking for puzzles pieces for my puzzle. Would you know of any articles that have done that conversion from hydrodynamics to aerodynamics?
  10. Yes, absolutely. The mass density will vary as well as their physical and chemical properties. I was hoping people would assume that I was considering that already but that was my mistake. I suppose my question is does anyone have any base datum as to how an object's drag coefficient would change in water and air. I know the shape, size, velocity and other factors would affect the results but lets assume an ideal situation with all variables being the same. Thanks again sir.
  11. I've recently been doing studies on reduction of drag and skin friction for a project and I'm curious about a couple of things. First, I found an academic paper on the reduction of skin friction for sharks. Their incredibly complex skin seems to disperse water in a way that allows sharp maneuverability and reduces skin friction as much as 8%. This reduction however, can't go said without considering the speed they function at which is usually 50 km/h. (pretty slow in comparison to a sailfish of over 100 km/h) I'm sure at higher speeds the skin friction could vary... You would wonder why I'm not asking about the sailfish but actually the V-shaped protrusions on their skin have been discovered to increase skin friction. With that aside, I wonder how comparable hydrodynamic properties are to aerodynamics properties in fluid mechanics. If they are similar, would you think the drag coefficient and/or Reynold's Number as well as the skin friction would also be reduced in an aerodynamic application? Thanks a ton in advance.
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