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visits member for 2 years, 10 months
seen Jul 21 at 17:41

Dec
13
accepted US time zones and Daylight saving time, energy efficient?
Dec
13
accepted Why a day is divided by 12/24 hours? Why the number 12?
Dec
13
comment Is there any solution to the potential flow around a square cylinder?
I am well aware of these simulations and papers. I run these simulations myself. These days, I am thinking of force history issue. As you refine the mesh or as you choose different turb models, the unsteady force turns out to be different, this bothers me. So I want to start from a potential flow results. I use a potential solver to get an initial field. But I found as the mesh is refined, the velocity at the corner cells keep increasing.
Dec
13
comment Is there any solution to the potential flow around a square cylinder?
Okay, you are right. Do you know any viscous solution to the flow past a square cylinder, or any related paper? I am very interested in these type of sharp cornered external flow.
Dec
13
comment Is there any solution to the potential flow around a square cylinder?
Thanks, I used those two tags just in hope that other "turbulence and navier-stokes" guys may see this post and share some ideas too. Cause I am afraid the fluid people is not too many here.
Dec
13
comment Is there any solution to the potential flow around a square cylinder?
Any analytical results? Or references that I can look into? Thanks
Dec
13
asked Is there any solution to the potential flow around a square cylinder?
Mar
27
comment Why a day is divided by 12/24 hours? Why the number 12?
Hey, I love your six fingers theory!
Mar
27
comment US time zones and Daylight saving time, energy efficient?
Excellent! These kind of information is exactly what I need. I hope there is some research on time zone issues too!
Mar
27
comment US time zones and Daylight saving time, energy efficient?
HAHA, I am just afraid that the people on Skeptics are not familiar with "energy" or "science" topic enough...
Mar
27
comment US time zones and Daylight saving time, energy efficient?
Thanks! Of cause, politics, economy, culture, and science are all equally important. I did know that some members of our gov believes that NOT using time zones would keep China chicken shaped. Which means Tibet and Xinjiang would not go away from us. LOL But I do hope to see if there is anyone in the US who has done a research from energy aspect to study this problem.
Mar
27
comment US time zones and Daylight saving time, energy efficient?
"DST probably has more to do with politics than energy", sorry I couldn't follow you, can you elaborate a little further? Why did you say it's maybe politics related? Thanks
Mar
27
comment US time zones and Daylight saving time, energy efficient?
LOL, I know, I know (I'm a Chinese), so you think without using time zones, it will waste a lot of energy? We once tried for a year when I was young, but later we gave up. The reason I am asking here is I am more concerned about scientific proof, I want to see the report.
Mar
27
revised US time zones and Daylight saving time, energy efficient?
added 45 characters in body
Mar
27
asked US time zones and Daylight saving time, energy efficient?
Mar
27
comment Why a day is divided by 12/24 hours? Why the number 12?
Then 36 is a good number too, so we can enjoy more church bells everyday.
Mar
27
comment Why a day is divided by 12/24 hours? Why the number 12?
No offense, we Chinese use 12 (Chinese zodiac) to mark time for a long time. It seems that number "12" is a common observation all over the world.
Mar
27
asked Why a day is divided by 12/24 hours? Why the number 12?
Dec
10
comment Questions about the speed of light and the extent of the universe
And when you answered "That's the way the universe was made.", are you implying that you believe that the universe was designed?
Dec
10
comment Questions about the speed of light and the extent of the universe
Wait, wait, when you mentioned Maxwell's equations, there are electric constant and magnetic constant therein, and your answer told me that the light is not the first cause. My question is this, why these constants have to be constant? Is there any more fundamental physical laws determine these? Some laws perhaps we have not found yet. Why it has to be 8.85E-12 blahblah? What is the reason of that? For example, in turbulence study, the kappa constant in law of wall these years has shown to be not constant anymore...