Questions tagged [hydrodynamics]

For questions dealing with the motion of fluids and the forces acting on solid bodies immersed in fluids and in motion relative to them.

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5
votes
7answers
2k views

How to create a floating rock

How to create a floating rock? This question is inspired from the Indian Sanskrit epic Ramayana, in which Lord Ram builds a bridge Rama Setu connecting India and Sri Lanka, which was entirely made of ...
0
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1answer
56 views

Aerodynamics of propeller vs screw/fin based aerial propulsion

Would it make sense to use screw- and fin-like bending surfaces for propulsion (like what eels or the king of herrings have but in the atmosphere) instead of regular propellers or even flapping wings ...
3
votes
2answers
68 views

Diffusion and Organic Reactions in Mist

Basic scenario: An abundance of a simple Lipid is introduced to a large body of liquid (water for simplicity), there’s some motion; wind or gravity or whatever, and the Lipids bump into one another. ...
6
votes
2answers
212 views

How to safely construct deep underground harbors on a Snowball Earth?

A radical shift in the Earth's orbit has made the Earth much colder, with all the oceans freezing over, and the atmosphere liquifying and falling as rain. Humans live deep underground in areas of high ...
5
votes
1answer
125 views

Deities vs You /Liquid Anon/ What'd be the most optimal carrier fluid comopsition? [closed]

Liquid Anon is my little OC, a total badass, with the ability to assume any form and color at a whim. Donut steel! A magnetorheological fluid (MR fluid, or MRF) a type of smart fluid in a carrier ...
20
votes
5answers
4k views

How dense of an atmosphere do I need to “float” an ocean of liquid at 1000 ft elevation?

I recently watched a special on cave divers in the Yucatan Peninsula and part way through that show the divers encountered a feature called a Halocline, a meeting of two different water masses of ...
0
votes
2answers
133 views

Meteor Impact Events and Magnetohydrodynamics

Siberia was formed as a result of a massive hotspot volcano (Siberian Traps) ~250 million years ago (mya) and so was India ~64 mya (Deccan Traps). So, I was working on a random planet generator for ...
22
votes
1answer
884 views

Ship design that could navigate on the edge of an incredibly strong vortex

I'm developing a game set in a colossal landmass at the center of a vortex, with water walls dozens of kilometers high. The continent is somewhat circular, and no civilization has yet developed ...