Kinematic viscosity for water on Mars

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SUMMARY

The discussion focuses on estimating the dynamic viscosity and density of liquid water under varying atmospheric pressures and temperatures, particularly in the context of Mars. It is established that both viscosity and density are primarily functions of temperature. Participants referenced the ASME steam tables as a reliable source for viscosity data, emphasizing the qualitative observation of water's viscosity changes with temperature, which can be related to real-world experiences such as the performance of windshield wipers in different seasons.

PREREQUISITES
  • Understanding of dynamic viscosity and density concepts
  • Familiarity with temperature's effect on fluid properties
  • Knowledge of atmospheric pressure variations
  • Access to ASME steam tables or similar resources
NEXT STEPS
  • Research the relationship between temperature and viscosity for various liquids
  • Explore the effects of atmospheric pressure on fluid dynamics
  • Study the ASME steam tables for detailed viscosity data
  • Investigate the behavior of fluids in extraterrestrial environments
USEFUL FOR

This discussion is beneficial for physicists, engineers, and researchers interested in fluid dynamics, particularly in extraterrestrial studies and environmental science related to planetary atmospheres.

wildonion
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Hi - I am trying to understand the relationship between atmosphere pressure, viscosity, and density - specifically water. Is there are way to estimate a range of dynamic viscosity and density values based on varying atmospheric pressures and/or temperature that I could use on any planet. Thanks for any help.
 
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Are you talking about liquid water or water vapor?
 
Hi, thanks for responding. I am talking about liquid water.
 
The density and viscosity are essentially functions only of temperature (which you can look up online).
 
Chestermiller said:
The density and viscosity are essentially functions only of temperature (which you can look up online).
@wildonian
You can qualitatively observe water's viscosity dependence on temperature by paying attention to the behavior of water and windshield wipers on your automobile. Technically speaking, it's a lot more 'gooey' in winter than in summer. That caused me to look up viscosity versus temperature of water , found it in ASME steam tables before the days of internet. (Really i was trying to figure out why in wintertime in S Florida Biscayne Bay is so much choppier than in summer.. But that's another thread..).

https://www.saylor.org/site/wp-content/uploads/2011/04/Viscosity.pdf
viscosity_water.jpg
 

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