Just because it is called a water spout doesn't mean it is a column of liquid water. Its a colloquialism.
On Tue, Jul 2, 2013 at 4:46 PM, ChemE Stewart <[email protected]> wrote: > Jim, > > That model(below) you referenced is a plume of smoke rising and a CFD > simulation of an air vortex. I do not see where it discusses the > thermodynamics of vacuum evaporating water over an ocean or vacuum > condensing water vapor in the atmosphere or hydraulically lifting tons of > water into the atmosphere. Maybe I missed something? Nature is much more > impressive. I understand air flowing from hot to cold and from high > pressure to low. > > [image: LM-3 model] > > > On Tue, Jul 2, 2013 at 5:14 PM, James Bowery <[email protected]> wrote: > >> Atmospheric vortex physics is well-enough established that the frontier >> of research is in modeling turbulent vs laminar transitions in with enough >> accuracy to write the CFD codes required to model the economics of the >> Atmospheric Vortex Engine. >> >> http://www.mail-archive.com/[email protected]/msg57184.html >> >> Toward that end Peter Thiel's Breakout Labs has put up money to build a >> medium scale version of the Atmospheric Vortex Engine so as to refine the >> model. >> >> http://www.mail-archive.com/[email protected]/msg74271.html >> >> There are no major unknowns about the energy balance of these systems. >> >> >> >> On Tue, Jul 2, 2013 at 4:01 PM, ChemE Stewart <[email protected]> wrote: >> >>> Mark, >>> >>> Thanks, they mention 10 m/s or about 22 MPH lift, which is reasonable >>> and about half of what I eyeballed from that waterspout, which disagrees >>> with what Wilkipedia and Brittanica have published. >>> They also mention it is slightly warmer in the center which makes sense >>> to me. In order to vacuum condense water vapor you have to REMOVE heat >>> from the water vapor (Heat of Vaporization). >>> The interesting thing to me is that usually a gas increases in pressure >>> when it is warmer and yet the center of the eye remains 1-10 mb LOWER >>> pressure, just like a hurricane maintains a "warm eye" and yet the pressure >>> is much lower than atmospheric pressure in the center >>> >>> They do not really answer WHY in that article but I agree with their >>> data and it still appears to me that a string of vacuum energy could >>> explain what maintains the disturbance. The vacuum energy would extract >>> entropy from the surrounding gas, triggering the condensing. >>> >>> Stewart >>> >>> >>> On Tue, Jul 2, 2013 at 4:41 PM, Mark Gibbs <[email protected]> wrote: >>> >>>> On Tue, Jul 2, 2013 at 1:20 PM, ChemE Stewart <[email protected]>wrote: >>>> >>>> >>>>> *Curious what others think about that water moving up in the spout as >>>>> it crosses onto land. I don't think the humidity changes that much so I do >>>>> not think it is due to a change in condensing (which would be vacuum >>>>> condensing anyway) I know how much horsepower it takes to pump water that >>>>> high and air can't do that...* >>>>> >>>> See >>>> http://journals.ametsoc.org/doi/pdf/10.1175/1520-0493(1977)105%3C0725%3AWWTAPS%3E2.0.CO%3B2 >>>> >>>> [mg] >>>> >>> >>> >> >
