476 reputation
317
bio website ccl.gatech.edu
location Atlanta, GA
age 34
visits member for 2 years, 8 months
seen Feb 11 at 21:57

Never-graduating PhD student in Computational Fluid Dynamics with Combustion. Main interest is in Liquid Rocket Engines and real gas flows.


Nov
24
comment Mass diffusion: is $D_{AB} \neq D_{BA}$ at high pressures? If so, why?
Nicely put ! That's what I think too, let's see what other answers we get.
Nov
24
asked Mass diffusion: is $D_{AB} \neq D_{BA}$ at high pressures? If so, why?
Nov
18
awarded  Scholar
Nov
18
accepted Gas kinetic representation of trans-critical conditions
Nov
12
comment What velocity must an aircraft achieve for its shock wave to transform to plasma?
Here it is, sort of. I can't link to the chart I was thinking about from Anderson, High Temperature Gas Dynamics, but this should do Check Fig. 1.1, they put the ionization limit at around 10 km/s which seems higher than what the Space Shuttle reaches, and yet I'm pretty sure there is a plasma cloud around the SS. I will research this further...
Nov
12
comment What velocity must an aircraft achieve for its shock wave to transform to plasma?
Given that the Space Shuttle create a plasma during reentry, I doubt your calculation of 4E7 mph was correct... I'm looking for a chart that shows Cp and $\gamma$ of air vs Mach number and altitude but I can't find it...
Nov
12
answered How cold should it be outside for a hot coffee mug to break?
Nov
11
awarded  Analytical
Nov
11
awarded  Autobiographer
Nov
11
awarded  Altruist
Nov
10
comment How do black holes accrete mass?
I thought your question implied that it would take an infinite amount of time for the man to fall in the black hole. Which is not true. Also, I always thought the size of the black hole was smaller or equal to the Schwarzschild radius, which is the event horizon.
Nov
10
revised How do black holes accrete mass?
added 1 characters in body
Nov
10
answered How do black holes accrete mass?
Nov
10
answered After what speed air friction starts to heat up an object?
Nov
9
awarded  Quorum
Nov
9
comment Gas kinetic representation of trans-critical conditions
let us continue this discussion in chat
Nov
9
comment Gas kinetic representation of trans-critical conditions
And then what I want to understand better is what happens at a molecular level for the macroscopic surface tension to disappear? Is this because the rate/energy of collisions becomes large enough?
Nov
9
comment Gas kinetic representation of trans-critical conditions
So maybe I was not clear but the two drawings (left and right) are meant to illustrate the two paths (upper and lower) on the phase diagram. I'm considering a constant pressure system where I have a spatial temperature gradient. I'm considering a snapshot in time.
Nov
9
awarded  Promoter
Nov
9
comment Gas kinetic representation of trans-critical conditions
So no opinion whatsoever on this? Bounty coming up I guess...